{"id":15974,"date":"2024-07-25T12:10:56","date_gmt":"2024-07-25T08:40:56","guid":{"rendered":"https:\/\/www.itpiran.net\/blog\/?p=15974"},"modified":"2024-07-25T12:10:56","modified_gmt":"2024-07-25T08:40:56","slug":"how-to-work-with-dates-and-times-in-sql","status":"publish","type":"post","link":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/","title":{"rendered":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL"},"content":{"rendered":"<h2 id=\"%d9%85%d9%82%d8%af%d9%85%d9%87\">\u0645\u0642\u062f\u0645\u0647<\/h2>\n<p>\u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u067e\u0627\u06cc\u06af\u0627\u0647 \u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc \u0648 \u0632\u0628\u0627\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0633\u0627\u062e\u062a\u0627\u0631\u06cc\u0627\u0641\u062a\u0647 (SQL)\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0632\u0645\u0627\u0646 \u0647\u0627\u06cc\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u06a9\u0647 \u0634\u0645\u0627 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u062a\u0627\u0631\u06cc\u062e \u06cc\u0627 \u0632\u0645\u0627\u0646 \u0647\u0627\u06cc \u062e\u0627\u0635\u06cc \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u0646\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0644\u0627\u0632\u0645 \u0628\u0627\u0634\u062f \u06a9\u0644 \u0633\u0627\u0639\u0627\u062a \u0635\u0631\u0641 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0641\u0639\u0627\u0644\u06cc\u062a \u062e\u0627\u0635 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f\u060c \u06cc\u0627 \u0634\u0627\u06cc\u062f \u0644\u0627\u0632\u0645 \u0628\u0627\u0634\u062f \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0627\u0631\u06cc\u062e \u06cc\u0627 \u0632\u0645\u0627\u0646 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0631\u06cc\u0627\u0636\u06cc \u0648 \u062a\u0648\u0627\u0628\u0639 \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0645\u062c\u0645\u0648\u0639 \u06cc\u0627 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL \u0631\u0627 \u062e\u0648\u0627\u0647\u06cc\u062f \u0622\u0645\u0648\u062e\u062a. \u0634\u0645\u0627 \u0628\u0627 \u0627\u0646\u062c\u0627\u0645 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u062e\u062a\u0644\u0641 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0641\u0642\u0637 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u062a SELECT \u0634\u0631\u0648\u0639 \u0645\u06cc \u06a9\u0646\u06cc\u062f. \u0633\u067e\u0633 \u0628\u0627 \u0627\u062c\u0631\u0627\u06cc \u067e\u0631\u0633\u200c\u0648\u200c\u062c\u0648\u0647\u0627 \u0628\u0631 \u0631\u0648\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u062a\u0645\u0631\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f \u0648 \u06cc\u0627\u062f \u0645\u06cc\u200c\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u062a\u0627\u0628\u0639 CAST \u0631\u0627 \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u062f \u062a\u0627 \u062e\u0631\u0648\u062c\u06cc \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u0642\u0627\u0628\u0644 \u0647\u0636\u0645\u200c\u062a\u0631 \u0634\u0648\u062f.<\/p>\n<h5 id=\"%d9%be%db%8c%d8%b4-%d9%86%db%8c%d8%a7%d8%b2%d9%87%d8%a7\">\u067e\u06cc\u0634 \u0646\u06cc\u0627\u0632\u0647\u0627<\/h5>\n<p>\u0628\u0631\u0627\u06cc \u062a\u06a9\u0645\u06cc\u0644 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634\u060c \u0634\u0645\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f:<\/p>\n<ul>\n<li>\u0633\u0631\u0648\u0631\u06cc \u06a9\u0647 \u0627\u0648\u0628\u0648\u0646\u062a\u0648 20.04 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0627 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u063a\u06cc\u0631 \u0631\u06cc\u0634\u0647 \u0628\u0627 \u0627\u0645\u062a\u06cc\u0627\u0632\u0627\u062a \u0645\u062f\u06cc\u0631\u06cc\u062a sudo \u0648 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0641\u0639\u0627\u0644 \u0627\u0633\u062a.<\/li>\n<li>MySQL \u0631\u0648\u06cc \u0633\u0631\u0648\u0631 \u0646\u0635\u0628 \u0648 \u0627\u06cc\u0645\u0646 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/li>\n<\/ul>\n<p><span style=\"color: #ff0000;\">\u062a\u0648\u062c\u0647: \u0644\u0637\u0641\u0627\u064b \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc \u0627\u0632 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0647\u0627\u06cc \u0645\u0646\u062d\u0635\u0631 \u0628\u0647 \u0641\u0631\u062f \u062e\u0648\u062f \u0627\u0632 SQL \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f. \u0627\u06af\u0631\u0686\u0647 \u062f\u0633\u062a\u0648\u0631\u0627\u062a \u0630\u06a9\u0631 \u0634\u062f\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0628\u0631 \u0631\u0648\u06cc \u0627\u06a9\u062b\u0631 RDBMS \u0647\u0627 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f\u060c \u0627\u06af\u0631 \u0622\u0646\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645\u06cc \u063a\u06cc\u0631 \u0627\u0632 MySQL \u0622\u0632\u0645\u0627\u06cc\u0634 \u06a9\u0646\u06cc\u062f\u060c \u0633\u06cc\u0646\u062a\u06a9\u0633 \u06cc\u0627 \u062e\u0631\u0648\u062c\u06cc \u062f\u0642\u06cc\u0642 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062a\u0641\u0627\u0648\u062a \u0628\u0627\u0634\u062f.<\/span><\/p>\n<p>\u0628\u0631\u0627\u06cc \u062a\u0645\u0631\u06cc\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634\u060c \u0628\u0647 \u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0648 \u062c\u062f\u0648\u0644 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0634\u062f\u0647 \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f. \u0627\u06af\u0631 \u06cc\u06a9 \u0645\u0648\u0631\u062f \u0622\u0645\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u062f\u0631\u062c \u0646\u062f\u0627\u0631\u06cc\u062f\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u062e\u0634 \u0627\u062a\u0635\u0627\u0644 \u0628\u0647 MySQL \u0648 \u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc \u0646\u0645\u0648\u0646\u0647 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0631\u0627 \u0628\u062e\u0648\u0627\u0646\u06cc\u062f \u062a\u0627 \u0646\u062d\u0648\u0647 \u0627\u06cc\u062c\u0627\u062f \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0648 \u062c\u062f\u0648\u0644 \u0631\u0627 \u0628\u06cc\u0627\u0645\u0648\u0632\u06cc\u062f. \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0628\u0647 \u0627\u06cc\u0646 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0648 \u062c\u062f\u0648\u0644 \u0646\u0645\u0648\u0646\u0647 \u062f\u0631 \u0633\u0631\u0627\u0633\u0631 \u0622\u0646 \u0627\u0634\u0627\u0631\u0647 \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f.<\/p>\n<h2 id=\"%d8%a7%d8%aa%d8%b5%d8%a7%d9%84-%d8%a8%d9%87-mysql-%d9%88-%d8%b1%d8%a7%d9%87-%d8%a7%d9%86%d8%af%d8%a7%d8%b2%db%8c-%db%8c%da%a9-%d9%be%d8%a7%db%8c%da%af%d8%a7%d9%87-%d8%af%d8%a7%d8%af%d9%87-%d9%86%d9%85\">\u0627\u062a\u0635\u0627\u0644 \u0628\u0647 MySQL \u0648 \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0646\u0645\u0648\u0646\u0647<\/h2>\n<p>\u0627\u06af\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 SQL \u0634\u0645\u0627 \u0628\u0631 \u0631\u0648\u06cc \u06cc\u06a9 \u0633\u0631\u0648\u0631 \u0631\u0627\u0647 \u062f\u0648\u0631 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f\u060c SSH \u0631\u0627 \u0627\u0632 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u062d\u0644\u06cc \u062e\u0648\u062f \u0628\u0647 \u0633\u0631\u0648\u0631 \u062e\u0648\u062f \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>ssh sammy@your_server_ip\r\n<\/code><\/pre>\n<\/div>\n<p>\u0633\u067e\u0633\u060c \u0627\u0639\u0644\u0627\u0646 MySQL \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f \u0648 \u0633\u0627\u0645\u06cc \u0631\u0627 \u0628\u0627 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062d\u0633\u0627\u0628 \u06a9\u0627\u0631\u0628\u0631\u06cc MySQL \u062e\u0648\u062f \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>mysql -u sammy -p\r\n<\/code><\/pre>\n<\/div>\n<p>\u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0628\u0647 \u0646\u0627\u0645 datetimeDB \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>CREATE DATABASE datetimeDB;\r\n<\/code><\/pre>\n<\/div>\n<p>\u0627\u06af\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u0627\u06cc\u062c\u0627\u062f \u0634\u0648\u062f\u060c \u062e\u0631\u0648\u062c\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\nQuery OK, 1 row affected (0.01 sec)<\/code><\/pre>\n<\/div>\n<p>\u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 datetimeDB \u0639\u0628\u0627\u0631\u062a USE \u0632\u06cc\u0631 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>USE datetimeDB;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\nDatabase changed<\/code><\/pre>\n<\/div>\n<p>\u067e\u0633 \u0627\u0632 \u0627\u0646\u062a\u062e\u0627\u0628 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647\u060c \u06cc\u06a9 \u062c\u062f\u0648\u0644 \u062f\u0631\u0648\u0646 \u0622\u0646 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634\u060c \u062c\u062f\u0648\u0644\u06cc \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0646\u062a\u0627\u06cc\u062c \u062f\u0648 \u062f\u0648\u0646\u062f\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0633\u0627\u0628\u0642\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u06cc \u06a9\u0647 \u062f\u0631 \u0637\u0648\u0644 \u06cc\u06a9 \u0633\u0627\u0644 \u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u0647\u200c\u0627\u0646\u062f \u0631\u0627 \u062f\u0631 \u062e\u0648\u062f \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u062f. \u0627\u06cc\u0646 \u062c\u062f\u0648\u0644 \u062f\u0627\u0631\u0627\u06cc \u0647\u0641\u062a \u0633\u062a\u0648\u0646 \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n<ul>\n<li>race_id: \u0645\u0642\u0627\u062f\u06cc\u0631 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 int \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06a9\u0644\u06cc\u062f \u0627\u0635\u0644\u06cc \u062c\u062f\u0648\u0644 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u0647\u0631 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u0627\u06cc\u0646 \u0633\u062a\u0648\u0646 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0634\u0646\u0627\u0633\u0647 \u0645\u0646\u062d\u0635\u0631 \u0628\u0647 \u0641\u0631\u062f \u0628\u0631\u0627\u06cc \u0631\u062f\u06cc\u0641 \u0645\u0631\u0628\u0648\u0637\u0647 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li>runner_name: \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 varchar \u0628\u0627 \u062d\u062f\u0627\u06a9\u062b\u0631 30 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u0628\u0631\u0627\u06cc \u0646\u0627\u0645 \u062f\u0648 \u0645\u0633\u0627\u0628\u0642\u0647 \u062f\u0647\u0646\u062f\u0647 Bolt \u0648 Felix \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li>race_name: \u0627\u0646\u0648\u0627\u0639 \u0646\u0698\u0627\u062f\u0647\u0627 \u0628\u0627 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 varchar \u0631\u0627 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062a\u0627 20 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u0646\u06af\u0647 \u0645\u06cc \u062f\u0627\u0631\u062f.<\/li>\n<li>start_day: \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 DATE \u0628\u0631\u0627\u06cc \u0631\u062f\u06cc\u0627\u0628\u06cc \u062a\u0627\u0631\u06cc\u062e \u06cc\u06a9 \u0645\u0633\u0627\u0628\u0642\u0647 \u062e\u0627\u0635 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0633\u0627\u0644\u060c \u0645\u0627\u0647 \u0648 \u0631\u0648\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 \u0628\u0647 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0632\u06cc\u0631 \u067e\u0627\u06cc\u0628\u0646\u062f \u0627\u0633\u062a: \u0686\u0647\u0627\u0631 \u0631\u0642\u0645 \u0628\u0631\u0627\u06cc \u0633\u0627\u0644\u060c \u0648 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062f\u0648 \u0631\u0642\u0645 \u0628\u0631\u0627\u06cc \u0645\u0627\u0647 \u0648 \u0631\u0648\u0632 (YYYY-MM-DD).<\/li>\n<li>start_time: \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u0632\u0645\u0627\u0646 \u0634\u0631\u0648\u0639 \u0645\u0633\u0627\u0628\u0642\u0647 \u0628\u0627 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 TIME \u0628\u0631 \u062d\u0633\u0628 \u0633\u0627\u0639\u062a\u060c \u062f\u0642\u06cc\u0642\u0647 \u0648 \u062b\u0627\u0646\u06cc\u0647 (HH:MM:SS) \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 \u0627\u0632 \u0641\u0631\u0645\u062a \u0633\u0627\u0639\u062a 24 \u0633\u0627\u0639\u062a\u0647 \u067e\u06cc\u0631\u0648\u06cc \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u0633\u0627\u0639\u062a 15:00 \u0628\u0631\u0627\u06cc \u0645\u0639\u0627\u062f\u0644 3:00 \u0628\u0639\u062f \u0627\u0632 \u0638\u0647\u0631.<\/li>\n<li>total_miles: \u06a9\u0644 \u0645\u0633\u0627\u0641\u062a \u067e\u06cc\u0645\u0648\u062f\u0647 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0647\u0631 \u0645\u0633\u0627\u0628\u0642\u0647 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 \u0627\u0639\u0634\u0627\u0631\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u0632\u06cc\u0631\u0627 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u0644 \u0645\u0627\u06cc\u0644 \u0647\u0627 \u062f\u0631 \u0647\u0631 \u0645\u0633\u0627\u0628\u0642\u0647 \u0627\u0639\u062f\u0627\u062f \u06a9\u0627\u0645\u0644 \u0646\u06cc\u0633\u062a\u0646\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c \u0627\u0639\u0634\u0627\u0631 \u062f\u0642\u062a \u0633\u0647 \u0631\u0627 \u0628\u0627 \u0645\u0642\u06cc\u0627\u0633 \u06cc\u06a9 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u0647\u0631 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u0627\u06cc\u0646 \u0633\u062a\u0648\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0633\u0647 \u0631\u0642\u0645\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u06a9\u0647 \u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646 \u0627\u0631\u0642\u0627\u0645 \u062f\u0631 \u0633\u0645\u062a \u0631\u0627\u0633\u062a \u0646\u0642\u0637\u0647 \u0627\u0639\u0634\u0627\u0631 \u0628\u0627\u0634\u062f.<\/li>\n<li>end_time: \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 TIMESTAMP \u0628\u0631\u0627\u06cc \u067e\u06cc\u06af\u06cc\u0631\u06cc \u0632\u0645\u0627\u0646 \u062f\u0648\u0646\u062f\u06af\u0627\u0646 \u062f\u0631 \u067e\u0627\u06cc\u0627\u0646 \u0645\u0633\u0627\u0628\u0642\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u062a\u0631\u06a9\u06cc\u0628 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0642\u0627\u0644\u0628 \u0622\u0646 \u062a\u0631\u06a9\u06cc\u0628\u06cc \u0627\u0632 \u0645\u0648\u0627\u0631\u062f DATE \u0648 TIME \u0627\u0633\u062a: (YYYY-MM-DD HH:MM:SS).<\/li>\n<\/ul>\n<p>\u0628\u0627 \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631 CREATE TABLE \u062c\u062f\u0648\u0644 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>CREATE TABLE race_results (\r\nrace_id int, \r\nrunner_name varchar(30),\r\nrace_name varchar(20), \r\nstart_day DATE,\r\nstart_time TIME, \r\ntotal_miles decimal(3, 1),\r\nend_time TIMESTAMP,\r\nPRIMARY KEY (race_id)\r\n); <\/code><\/pre>\n<\/div>\n<p>\u0633\u067e\u0633 \u062a\u0639\u062f\u0627\u062f\u06cc \u062f\u0627\u062f\u0647 \u0646\u0645\u0648\u0646\u0647 \u0631\u0627 \u062f\u0631 \u062c\u062f\u0648\u0644 \u062e\u0627\u0644\u06cc \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>INSERT INTO race_results\r\n(race_id, runner_name, race_name, start_day, start_time, total_miles, end_time)\r\nVALUES\r\n(1, 'bolt', '1600_meters', '2022-09-18', '7:00:00', 1.0, '2022-09-18 7:06:30'),\r\n(2, 'bolt', '5K', '2022-10-19', '11:00:00', 3.1, '2022-10-19 11:22:31'),\r\n(3, 'bolt', '10K', '2022-11-20', '10:00:00', 6.2, '2022-11-20 10:38:05'),\r\n(4, 'bolt', 'half_marathon', '2022-12-21', '6:00:00', 13.1, '2022-12-21 07:39:04'),\r\n(5, 'bolt', 'full_marathon', '2023-01-22', '8:00:00', 26.2, '2023-01-22 11:23:10'),\r\n(6, 'felix', '1600_meters', '2022-09-18', '7:00:00', 1.0, '2022-09-18 7:07:15'),\r\n(7, 'felix', '5K', '2022-10-19', '11:00:00', 3.1, '2022-10-19 11:30:50'),\r\n(8, 'felix', '10K', '2022-11-20', '10:00:00', 6.2, '2022-11-20 11:10:17'),\r\n(9, 'felix', 'half_marathon', '2022-12-21', '6:00:00', 13.1, '2022-12-21 08:11:57'),\r\n(10, 'felix', 'full_marathon', '2023-01-22', '8:00:00', 26.2, '2023-01-22 12:02:10');<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\nQuery OK, 10 rows affected (0.00 sec)\r\nRecords: 10 Duplicates: 0 Warnings: 0<\/code><\/pre>\n<\/div>\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u06cc\u062f\u060c \u0622\u0645\u0627\u062f\u0647 \u0634\u0631\u0648\u0639 \u062a\u0645\u0631\u06cc\u0646 \u062d\u0633\u0627\u0628\u06cc \u0648 \u062a\u0648\u0627\u0628\u0639 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL \u0647\u0633\u062a\u06cc\u062f.<\/p>\n<h2 id=\"%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%d8%ad%d8%b3%d8%a7%d8%a8-%d8%a8%d8%a7-%d8%aa%d8%a7%d8%b1%db%8c%d8%ae-%d9%88-%d8%b2%d9%85%d8%a7%d9%86\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062d\u0633\u0627\u0628 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646<\/h2>\n<p>\u062f\u0631 SQL \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f. \u062a\u0646\u0647\u0627 \u0686\u06cc\u0632\u06cc \u06a9\u0647 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a \u0639\u0645\u0644\u06af\u0631 \u0631\u06cc\u0627\u0636\u06cc \u0648 \u0645\u0642\u0627\u062f\u06cc\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u06cc\u06a9 \u062a\u0627\u0631\u06cc\u062e \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u062a\u0639\u062f\u0627\u062f \u0631\u0648\u0632\u0647\u0627\u06cc \u0645\u0634\u062e\u0635\u06cc \u067e\u0633 \u0627\u0632 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0627\u0634\u062f. \u067e\u0631\u0633 \u0648 \u062c\u0648\u06cc \u0632\u06cc\u0631 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u062a\u0627\u0631\u06cc\u062e (2022-10-05) \u0645\u06cc \u06af\u06cc\u0631\u062f \u0648 17 \u0631\u0627 \u0628\u0647 \u0622\u0646 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0645\u0642\u062f\u0627\u0631 \u062a\u0627\u0631\u06cc\u062e \u0647\u0641\u062f\u0647 \u0631\u0648\u0632 \u067e\u0633 \u0627\u0632 \u062a\u0627\u0631\u06cc\u062e \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u062f\u0631 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0631\u0627 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f. \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 2022-10-05 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 DATE \u0645\u0634\u062e\u0635 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u0634\u0648\u062f \u06a9\u0647 DBMS \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0631\u0634\u062a\u0647 \u06cc\u0627 \u0646\u0648\u0639 \u062f\u06cc\u06af\u0631\u06cc \u0627\u0632 \u062f\u0627\u062f\u0647 \u062a\u0641\u0633\u06cc\u0631 \u0646\u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT DATE '2022-10-05' + 17 AS new_date;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+----------+\r\n| new_date |\r\n+----------+\r\n| 20221022 |\r\n+----------+\r\n1 row in set (0.01 sec)<\/code><\/pre>\n<\/div>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f\u060c 17 \u0631\u0648\u0632 \u067e\u0633 \u0627\u0632 2022-10-05\u060c 2022-10-22 \u06cc\u0627 22 \u0627\u06a9\u062a\u0628\u0631 2022 \u0627\u0633\u062a.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u062f\u06cc\u06af\u0631\u060c \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0644 \u0633\u0627\u0639\u062a \u0647\u0627 \u0631\u0627 \u0628\u06cc\u0646 \u062f\u0648 \u0632\u0645\u0627\u0646 \u0645\u062e\u062a\u0644\u0641 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f. \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0628\u0627 \u06a9\u0645 \u06a9\u0631\u062f\u0646 \u062f\u0648 \u0628\u0627\u0631 \u0627\u0632 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f. \u0628\u0631\u0627\u06cc \u067e\u0631\u0633\u0634 \u0632\u06cc\u0631\u060c 11:00 \u0627\u0648\u0644\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u0632\u0645\u0627\u0646\u06cc \u0648 3:00 \u0645\u0642\u062f\u0627\u0631 \u0632\u0645\u0627\u0646\u06cc \u062f\u0648\u0645 \u0627\u0633\u062a. \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0628\u0627\u06cc\u062f \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0647\u0631 \u062f\u0648 \u0645\u0642\u062f\u0627\u0631 TIME \u0647\u0633\u062a\u0646\u062f \u062a\u0627 \u0627\u062e\u062a\u0644\u0627\u0641 \u0633\u0627\u0639\u062a \u0631\u0627 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT TIME '11:00' - TIME '3:00' AS time_diff;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-----------+\r\n| time_diff |\r\n+-----------+\r\n| 80000 |\r\n+-----------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u0628\u0647 \u0634\u0645\u0627 \u0645\u06cc \u06af\u0648\u06cc\u062f \u06a9\u0647 \u062a\u0641\u0627\u0648\u062a \u0628\u06cc\u0646 11:00 \u0648 3:00 80000 \u06cc\u0627 8 \u0633\u0627\u0639\u062a \u0627\u0633\u062a.<\/p>\n<p>\u062d\u0627\u0644\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0631\u0648\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0627\u0632 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u062a\u0645\u0631\u06cc\u0646 \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0627\u0648\u0644\u06cc\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u060c \u06a9\u0644 \u0632\u0645\u0627\u0646\u06cc \u0631\u0627 \u06a9\u0647 \u062f\u0648\u0646\u062f\u06af\u0627\u0646 \u0628\u0631\u0627\u06cc \u0628\u0647 \u067e\u0627\u06cc\u0627\u0646 \u0631\u0633\u0627\u0646\u062f\u0646 \u0647\u0631 \u0645\u0633\u0627\u0628\u0642\u0647 \u0635\u0631\u0641 \u06a9\u0631\u062f\u0646\u062f\u060c \u0628\u0627 \u06a9\u0645 \u06a9\u0631\u062f\u0646 end_time \u0627\u0632 start_time \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, race_name, end_time - start_time \r\nAS total_time \r\nFROM race_results;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+---------------+----------------+\r\n| runner_name | race_name | total_time |\r\n+-------------+---------------+----------------+\r\n| bolt | 1600_meters | 20220918000630 |\r\n| bolt | 5K | 20221019002231 |\r\n| bolt | 10K | 20221120003805 |\r\n| bolt | half_marathon | 20221221013904 |\r\n| bolt | full_marathon | 20230122032310 |\r\n| felix | 1600_meters | 20220918000715 |\r\n| felix | 5K | 20221019003050 |\r\n| felix | 10K | 20221120011017 |\r\n| felix | half_marathon | 20221221021157 |\r\n| felix | full_marathon | 20230122040210 |\r\n+-------------+---------------+----------------+\r\n10 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0645\u062a\u0648\u062c\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u062f\u0631 \u0633\u062a\u0648\u0646 total_time \u0646\u0633\u0628\u062a\u0627 \u0637\u0648\u0644\u0627\u0646\u06cc \u0627\u0633\u062a \u0648 \u062e\u0648\u0627\u0646\u062f\u0646 \u0622\u0646 \u062f\u0634\u0648\u0627\u0631 \u0627\u0633\u062a. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u060c \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0628\u0639 CAST \u0631\u0627 \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u0648\u0627\u0636\u062d\u200c\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u0646\u0634\u0627\u0646 \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u062f.<\/p>\n<p>\u0627\u06a9\u0646\u0648\u0646\u060c \u0627\u06af\u0631 \u0641\u0642\u0637 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0647\u0631 \u062f\u0648\u0646\u062f\u0647 \u0628\u0631\u0627\u06cc \u0645\u0633\u0627\u0628\u0642\u0627\u062a \u0637\u0648\u0644\u0627\u0646\u06cc \u062a\u0631\u060c \u0645\u0627\u0646\u0646\u062f \u062f\u0648 \u0645\u0627\u0631\u0627\u062a\u0646 \u0646\u06cc\u0645\u0647 \u0648 \u06a9\u0627\u0645\u0644 \u0639\u0644\u0627\u0642\u0647 \u0645\u0646\u062f \u0628\u0648\u062f\u06cc\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062e\u0648\u062f \u0631\u0627 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0622\u0646 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062c\u0633\u062a\u062c\u0648 \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u060c end_time \u0631\u0627 \u0627\u0632 start_time \u06a9\u0645 \u06a9\u0646\u06cc\u062f\u060c \u0648 \u0646\u062a\u0627\u06cc\u062c \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u062a WHERE \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc\u06cc \u06a9\u0647 total_miles \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 12 \u0628\u0648\u062f\u060c \u0645\u062d\u062f\u0648\u062f \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, race_name, end_time - start_time AS half_full_results\r\nFROM race_results \r\nWHERE total_miles &gt; 12;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+---------------+-------------------+\r\n| runner_name | race_name | half_full_results |\r\n+-------------+---------------+-------------------+\r\n| bolt | half_marathon | 20221221013904 |\r\n| bolt | full_marathon | 20230122032310 |\r\n| felix | half_marathon | 20221221021157 |\r\n| felix | full_marathon | 20230122040210 |\r\n+-------------+---------------+-------------------+\r\n4 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0628\u062e\u0634\u060c \u0645\u0642\u062f\u0627\u0631\u06cc \u062d\u0633\u0627\u0628 \u062f\u0631 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 SELECT \u0648 \u0628\u0631\u0627\u06cc \u0627\u0647\u062f\u0627\u0641 \u0639\u0645\u0644\u06cc \u0631\u0648\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u06cc\u062f. \u062f\u0631 \u0645\u0631\u062d\u0644\u0647 \u0628\u0639\u062f\u060c \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u062e\u062a\u0644\u0641 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062a\u0645\u0631\u06cc\u0646 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f.<\/p>\n<h2 id=\"%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-%d8%aa%d8%a7%d8%b1%db%8c%d8%ae-%d9%88-%d8%b2%d9%85%d8%a7%d9%86-%d9%88-%d8%b9%d8%a8%d8%a7%d8%b1%d8%a7%d8%aa-%d8%a8\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0648 \u0639\u0628\u0627\u0631\u0627\u062a \u0628\u0627\u0632\u0647<\/h2>\n<p>\u0686\u0646\u062f\u06cc\u0646 \u062a\u0648\u0627\u0628\u0639 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u06cc\u0627\u0641\u062a\u0646 \u0648 \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f. \u062a\u0648\u0627\u0628\u0639 SQL \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u067e\u0631\u062f\u0627\u0632\u0634 \u06cc\u0627 \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u062a\u0648\u0627\u0628\u0639 \u0645\u0648\u062c\u0648\u062f \u0628\u0647 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc SQL \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u0646\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0627\u06a9\u062b\u0631 \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc\u200c\u0647\u0627\u06cc SQL \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f \u062a\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0641\u0639\u0644\u06cc \u0631\u0627 \u0628\u0627 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 current_date \u0648 current_time \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u062a\u0627\u0631\u06cc\u062e \u0627\u0645\u0631\u0648\u0632\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0646\u062d\u0648 \u06a9\u0648\u062a\u0627\u0647 \u0627\u0633\u062a \u0648 \u0641\u0642\u0637 \u0627\u0632 \u0639\u0628\u0627\u0631\u062a SELECT \u0648 \u062a\u0627\u0628\u0639 current_date \u0645\u0627\u0646\u0646\u062f \u0632\u06cc\u0631 \u062a\u0634\u06a9\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_date;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+--------------+\r\n| current_date |\r\n+--------------+\r\n| 2022-02-15 |\r\n+--------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0647\u0645\u0627\u0646 \u0646\u062d\u0648\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0632\u0645\u0627\u0646 \u0641\u0639\u0644\u06cc \u0631\u0627 \u0628\u0627 \u062a\u0627\u0628\u0639 current_time \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_time;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+--------------+\r\n| current_time |\r\n+--------------+\r\n| 17:10:20 |\r\n+--------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06af\u0631 \u062a\u0631\u062c\u06cc\u062d \u0645\u06cc \u062f\u0647\u06cc\u062f \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0631\u0627 \u062f\u0631 \u062e\u0631\u0648\u062c\u06cc \u067e\u0631\u0633 \u0648 \u062c\u0648 \u06a9\u0646\u06cc\u062f\u060c \u0627\u0632 \u062a\u0627\u0628\u0639 current_timestamp \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_timestamp;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+---------------------+\r\n| current_timestamp |\r\n+---------------------+\r\n| 2022-02-15 19:09:58 |\r\n+---------------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0645\u0627\u0646\u0646\u062f \u0627\u06cc\u0646\u0647\u0627 \u062f\u0631 \u062a\u0648\u0627\u0628\u0639 \u062d\u0633\u0627\u0628\u06cc \u0645\u0634\u0627\u0628\u0647 \u0628\u062e\u0634 \u0642\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u06af\u0648\u06cc\u06cc\u062f \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u062f\u0627\u0646\u06cc\u062f \u062a\u0627\u0631\u06cc\u062e 11 \u0631\u0648\u0632 \u067e\u06cc\u0634 \u0627\u0632 \u062a\u0627\u0631\u06cc\u062e \u0627\u0645\u0631\u0648\u0632 \u0686\u0647 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0647\u0645\u0627\u0646 \u0633\u0627\u062e\u062a\u0627\u0631 \u0646\u062d\u0648\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u067e\u0631\u0633\u200c\u0648\u062c\u0648\u06cc\u06cc \u0627\u0632 \u062a\u0627\u0628\u0639 current_date \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0631\u062f\u06cc\u062f \u0648 \u0633\u067e\u0633 11 \u0631\u0627 \u0627\u0632 \u0622\u0646 \u06a9\u0645 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u062a\u0627\u0631\u06cc\u062e \u06cc\u0627\u0632\u062f\u0647 \u0631\u0648\u0632 \u0642\u0628\u0644 \u0631\u0627 \u0628\u06cc\u0627\u0628\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_date - 11;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------------+\r\n| current_date - 11 |\r\n+-------------------+\r\n| 20220206 |\r\n+-------------------+\r\n1 row in set (0.01 sec)<\/code><\/pre>\n<\/div>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f\u060c 11 \u0631\u0648\u0632 \u067e\u06cc\u0634 \u0627\u0632 current_date (\u062f\u0631 \u0632\u0645\u0627\u0646 \u0646\u06af\u0627\u0631\u0634 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647) 2022-02-06 \u06cc\u0627 6 \u0641\u0648\u0631\u06cc\u0647 2022 \u0628\u0648\u062f. \u0627\u06a9\u0646\u0648\u0646 \u0647\u0645\u06cc\u0646 \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u0627 \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 current_date \u0631\u0627 \u0628\u0627 \u062a\u0627\u0628\u0639 current_time \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_time - 11;\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------------+\r\n| current_time - 11 |\r\n+-------------------+\r\n| 233639 |\r\n+-------------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u0648\u0642\u062a\u06cc 11 \u0631\u0627 \u0627\u0632 \u0645\u0642\u062f\u0627\u0631 current_time \u06a9\u0645 \u06a9\u0646\u06cc\u062f\u060c 11 \u062b\u0627\u0646\u06cc\u0647 \u06a9\u0645 \u0645\u06cc \u06a9\u0646\u062f. \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0628\u0639 current_date \u0627\u062c\u0631\u0627 \u06a9\u0631\u062f\u06cc\u062f\u060c 11 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0631\u0648\u0632 \u062a\u0641\u0633\u06cc\u0631 \u06a9\u0631\u062f\u060c \u0646\u0647 \u062b\u0627\u0646\u06cc\u0647. \u0627\u06cc\u0646 \u0646\u0627\u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u062f\u0631 \u0646\u062d\u0648\u0647 \u062a\u0641\u0633\u06cc\u0631 \u0627\u0639\u062f\u0627\u062f \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0648\u0627\u0628\u0639 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06af\u06cc\u062c \u06a9\u0646\u0646\u062f\u0647 \u0628\u0627\u0634\u062f. \u0628\u0647 \u062c\u0627\u06cc \u0627\u06cc\u0646\u06a9\u0647 \u0627\u0632 \u0634\u0645\u0627 \u0628\u062e\u0648\u0627\u0647\u0646\u062f \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0645\u0627\u0646\u0646\u062f \u0627\u06cc\u0646 \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f\u060c \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0628\u0647 \u0634\u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u0627\u062a INTERVAL \u0648\u0627\u0636\u062d \u062a\u0631 \u0628\u0627\u0634\u06cc\u062f.<\/p>\n<p>\u0639\u0628\u0627\u0631\u0627\u062a INTERVAL \u0628\u0647 \u0634\u0645\u0627 \u0627\u06cc\u0646 \u0627\u0645\u06a9\u0627\u0646 \u0631\u0627 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u062a\u0627\u0631\u06cc\u062e \u06cc\u0627 \u0633\u0627\u0639\u062a \u0631\u0627 \u0642\u0628\u0644 \u06cc\u0627 \u0628\u0639\u062f \u0627\u0632 \u06cc\u06a9 \u0641\u0627\u0635\u0644\u0647 \u0632\u0645\u0627\u0646\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0634\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u0628\u06cc\u0627\u0646 \u062a\u0627\u0631\u06cc\u062e \u06cc\u0627 \u0632\u0645\u0627\u0646\u06cc \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u062f. \u0622\u0646\u0647\u0627 \u0628\u0627\u06cc\u062f \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>INTERVAL value unit\r\n<\/code><\/pre>\n<\/div>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u0631\u0627\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u062a\u0627\u0631\u06cc\u062e \u067e\u0646\u062c \u0631\u0648\u0632 \u0628\u0639\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0632\u06cc\u0631 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_date + INTERVAL '5' DAY AS \"5_days_from_today\";\r\n<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u0645\u0642\u062f\u0627\u0631 current_date \u0631\u0627 \u067e\u06cc\u062f\u0627 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0633\u067e\u0633 \u0639\u0628\u0627\u0631\u062a \u0628\u0627\u0632\u0647 \u0627\u06cc INTERVAL &#8216;5&#8217; DAY \u0631\u0627 \u0628\u0647 \u0622\u0646 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u062a\u0627\u0631\u06cc\u062e 5 \u0631\u0648\u0632 \u0628\u0639\u062f \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------------+\r\n| 5_days_from_today |\r\n+-------------------+\r\n| 2022-03-06 |\r\n+-------------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0645\u062a\u0631 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648\u06cc \u0632\u06cc\u0631 \u0645\u0628\u0647\u0645 \u0627\u0633\u062a\u060c \u06a9\u0647 \u062e\u0631\u0648\u062c\u06cc \u0645\u0634\u0627\u0628\u0647\u060c \u0627\u0644\u0628\u062a\u0647 \u0646\u0647 \u06cc\u06a9\u0633\u0627\u0646 \u062a\u0648\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_date + 5 AS \"5_days_from_today\";\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------------+\r\n| 5_days_from_today |\r\n+-------------------+\r\n| 20220306 |\r\n+-------------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0641\u0648\u0627\u0635\u0644 \u0632\u0645\u0627\u0646\u06cc \u0631\u0627 \u0627\u0632 \u062a\u0627\u0631\u06cc\u062e \u0647\u0627 \u06cc\u0627 \u0632\u0645\u0627\u0646 \u0647\u0627 \u06a9\u0645 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0642\u0628\u0644 \u0627\u0632 \u0645\u0642\u062f\u0627\u0631 \u062a\u0627\u0631\u06cc\u062e \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0631\u0627 \u0628\u06cc\u0627\u0628\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_date - INTERVAL '7' MONTH AS \"7_months_ago\";\r\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+--------------+\r\n| 7_months_ago |\r\n+--------------+\r\n| 2021-08-01 |\r\n+--------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0648\u0627\u062d\u062f\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0639\u0628\u0627\u0631\u0627\u062a INTERVAL \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0647\u0633\u062a\u0646\u062f \u0628\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0634\u0645\u0627 \u0627\u0632 DBMS \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f\u060c \u0627\u06af\u0631\u0686\u0647 \u0627\u06a9\u062b\u0631 \u0622\u0646\u0647\u0627 \u06af\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f HOUR\u060c MINUTE \u0648 SECOND \u0631\u0627 \u062e\u0648\u0627\u0647\u0646\u062f \u062f\u0627\u0634\u062a:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT current_time + INTERVAL '6' HOUR AS \"6_hours_from_now\",\r\ncurrent_time - INTERVAL '5' MINUTE AS \"5_minutes_ago\",\r\ncurrent_time + INTERVAL '20' SECOND AS \"20_seconds_from_now\";<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+------------------+---------------+---------------------+\r\n| 6_hours_from_now | 5_minutes_ago | 20_seconds_from_now |\r\n+------------------+---------------+---------------------+\r\n| 07:51:43 | 01:46:43 | 01:52:03.000000 |\r\n+------------------+---------------+---------------------+\r\n1 row in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u062f\u0631 \u0645\u0648\u0631\u062f \u0639\u0628\u0627\u0631\u0627\u062a \u0628\u0627\u0632\u0647 \u0627\u06cc \u0648 \u0628\u0631\u062e\u06cc \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u06cc\u0627\u062f \u06af\u0631\u0641\u062a\u0647 \u0627\u06cc\u062f\u060c \u0628\u0647 \u062a\u0645\u0631\u06cc\u0646 \u06a9\u0627\u0631 \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u0627\u06cc \u06a9\u0647 \u062f\u0631 \u0645\u0631\u062d\u0644\u0647 \u0627\u0648\u0644 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0647 \u0627\u06cc\u062f \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u06cc\u062f.<\/p>\n<h2 id=\"%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%d8%aa%d9%88%d8%a7%d8%a8%d8%b9-cast-%d9%88-aggregate-%d8%a8%d8%a7-%d8%aa%d8%a7%d8%b1%db%8c%d8%ae-%d9%88-%d8%b2%d9%85%d8%a7%d9%86\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 CAST \u0648 Aggregate \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646<\/h2>\n<p>\u0645\u062b\u0627\u0644 \u0633\u0648\u0645 \u062f\u0631 \u0628\u062e\u0634 Using Arithmetic with Dates and Times \u0631\u0627 \u0628\u0647 \u06cc\u0627\u062f \u0628\u06cc\u0627\u0648\u0631\u06cc\u062f\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u067e\u0631\u0633 \u0648 \u062c\u0648\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062a\u0641\u0631\u06cc\u0642 end_time \u0627\u0632 start_time \u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u06cc\u062f \u062a\u0627 \u06a9\u0644 \u0633\u0627\u0639\u0627\u062a\u06cc \u0631\u0627 \u06a9\u0647 \u0647\u0631 \u062f\u0648\u0646\u062f\u0647 \u062f\u0631 \u0647\u0631 \u0645\u0633\u0627\u0628\u0642\u0647 \u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u0647 \u0627\u0633\u062a \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062e\u0631\u0648\u062c\u06cc \u0645\u0646\u062c\u0631 \u0628\u0647 \u0633\u062a\u0648\u0646\u06cc \u0634\u062f \u06a9\u0647 \u062d\u0627\u0648\u06cc \u06cc\u06a9 \u062e\u0631\u0648\u062c\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0637\u0648\u0644\u0627\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 TIMESTAMP \u06a9\u0647 \u062f\u0631 \u062c\u062f\u0648\u0644 \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a \u067e\u06cc\u0631\u0648\u06cc \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, race_name, end_time - start_time \r\nAS total_time \r\nFROM race_results;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+---------------+----------------+\r\n| runner_name | race_name | total_time |\r\n+-------------+---------------+----------------+\r\n| bolt | 1600_meters | 20220918000630 |\r\n| bolt | 5K | 20221019002231 |\r\n| bolt | 10K | 20221120003805 |\r\n| bolt | half_marathon | 20221221013904 |\r\n| bolt | full_marathon | 20230122032310 |\r\n| felix | 1600_meters | 20220918000715 |\r\n| felix | 5K | 20221019003050 |\r\n| felix | 10K | 20221120011017 |\r\n| felix | half_marathon | 20221221021157 |\r\n| felix | full_marathon | 20230122040210 |\r\n+-------------+---------------+----------------+\r\n10 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u062f\u0631 \u062d\u0627\u0644 \u0627\u0646\u062c\u0627\u0645 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0628\u0627 \u062f\u0648 \u0633\u062a\u0648\u0646 \u0647\u0633\u062a\u06cc\u062f \u06a9\u0647 \u0627\u0646\u0648\u0627\u0639 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u062f\u0627\u0631\u0646\u062f (end_time \u062f\u0627\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 TIMESTAMP \u0648 start_time \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 TIME)\u060c \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0646\u0645\u06cc\u200c\u062f\u0627\u0646\u062f \u0647\u0646\u06af\u0627\u0645 \u0686\u0627\u067e \u0646\u062a\u06cc\u062c\u0647 \u0639\u0645\u0644\u06cc\u0627\u062a \u0627\u0632 \u0686\u0647 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647\u200c\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u062f. \u062f\u0631 \u0639\u0648\u0636\u060c \u0647\u0631 \u062f\u0648 \u0645\u0642\u062f\u0627\u0631 \u0631\u0627 \u0628\u0647 \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0628\u062a\u0648\u0627\u0646\u062f \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u062f \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0627\u0639\u062f\u0627\u062f \u0637\u0648\u0644\u0627\u0646\u06cc \u062f\u0631 \u0633\u062a\u0648\u0646 total_time \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u06a9\u0645\u06a9 \u0628\u0647 \u0634\u0641\u0627\u0641\u200c\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0627\u06cc\u0646 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646 \u0648 \u062a\u0641\u0633\u06cc\u0631\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u062a\u0627\u0628\u0639 CAST \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0635\u062d\u06cc\u062d \u0637\u0648\u0644\u0627\u0646\u06cc \u0628\u0647 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 TIME \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u0628\u0627 CAST \u0634\u0631\u0648\u0639 \u06a9\u0646\u06cc\u062f \u0648 \u0633\u067e\u0633 \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u0622\u0646 \u0631\u0627 \u0628\u0627 \u06cc\u06a9 \u067e\u0631\u0627\u0646\u062a\u0632 \u0628\u0627\u0632\u060c \u0645\u0642\u0627\u062f\u06cc\u0631\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u062a\u0628\u062f\u06cc\u0644 \u0634\u0648\u0646\u062f\u060c \u0648 \u0633\u067e\u0633 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc AS \u0648 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647\u200c\u0627\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0622\u0646 \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u06cc\u062f\u060c \u062f\u0646\u0628\u0627\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u06a9\u0648\u0626\u0631\u06cc \u0632\u06cc\u0631 \u0628\u0627 \u0645\u062b\u0627\u0644 \u0642\u0628\u0644\u06cc \u06cc\u06a9\u0633\u0627\u0646 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0639 CAST \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0633\u062a\u0648\u0646 total_time \u0628\u0647 \u0646\u0648\u0639 \u062f\u0627\u062f\u0647 \u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, race_name, CAST(end_time - start_time AS time)\r\nAS total_time \r\nFROM race_results;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+---------------+------------+\r\n| runner_name | race_name | total_time |\r\n+-------------+---------------+------------+\r\n| bolt | 1600_meters | 00:06:30 |\r\n| bolt | 5K | 00:22:31 |\r\n| bolt | 10K | 00:38:05 |\r\n| bolt | half_marathon | 01:39:04 |\r\n| bolt | full_marathon | 03:23:10 |\r\n| felix | 1600_meters | 00:07:15 |\r\n| felix | 5K | 00:30:50 |\r\n| felix | 10K | 01:10:17 |\r\n| felix | half_marathon | 02:11:57 |\r\n| felix | full_marathon | 04:02:10 |\r\n+-------------+---------------+------------+\r\n10 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>CAST \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0631\u0627 \u062f\u0631 \u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u0628\u0647 TIME \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0631\u062f \u0648 \u062e\u0648\u0627\u0646\u062f\u0646 \u0648 \u062f\u0631\u06a9 \u0622\u0646 \u0631\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0642\u0627\u0628\u0644 \u0647\u0636\u0645 \u06a9\u0631\u062f.<\/p>\n<p>\u062d\u0627\u0644\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u0632 \u0686\u0646\u062f \u062a\u0627\u0628\u0639 \u062c\u0645\u0639 \u062f\u0631 \u062a\u0631\u06a9\u06cc\u0628 \u0628\u0627 \u062a\u0627\u0628\u0639 CAST \u0628\u0631\u0627\u06cc \u06cc\u0627\u0641\u062a\u0646 \u06a9\u0648\u062a\u0627\u0647\u200c\u062a\u0631\u06cc\u0646\u060c \u0637\u0648\u0644\u0627\u0646\u06cc\u200c\u062a\u0631\u06cc\u0646 \u0648 \u06a9\u0644 \u0632\u0645\u0627\u0646 \u0646\u062a\u0627\u06cc\u062c \u0647\u0631 \u062f\u0648\u0646\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645. \u0627\u0628\u062a\u062f\u0627\u060c \u062d\u062f\u0627\u0642\u0644 (\u06cc\u0627 \u06a9\u0648\u062a\u0627\u0647 \u062a\u0631\u06cc\u0646) \u0632\u0645\u0627\u0646 \u0635\u0631\u0641 \u0634\u062f\u0647 \u0628\u0627 \u062a\u0627\u0628\u0639 MIN \u0631\u0627 \u062c\u0633\u062a\u062c\u0648 \u06a9\u0646\u06cc\u062f. \u062f\u0648\u0628\u0627\u0631\u0647\u060c \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u0632 CAST \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0627\u062f\u0647 TIMESTAMP \u0628\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0627\u062f\u0647 TIME \u0628\u0631\u0627\u06cc \u0648\u0636\u0648\u062d \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0644\u0637\u0641\u0627\u064b \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u0648 \u062a\u0627\u0628\u0639 \u0645\u0627\u0646\u0646\u062f \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u062f\u0648 \u062c\u0641\u062a \u067e\u0631\u0627\u0646\u062a\u0632 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a \u0648 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0644 \u0633\u0627\u0639\u062a \u0647\u0627 (\u067e\u0627\u06cc\u0627\u0646_\u0632\u0645\u0627\u0646 &#8211; \u0632\u0645\u0627\u0646_\u0634\u0631\u0648\u0639) \u0628\u0627\u06cc\u062f \u062f\u0631 \u06cc\u06a9\u06cc \u0627\u0632 \u0622\u0646\u0647\u0627 \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u062f. \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u06cc\u06a9 \u0628\u0646\u062f GROUP BY \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0633\u062a\u0648\u0646 runner_name \u0633\u0627\u0632\u0645\u0627\u0646\u062f\u0647\u06cc \u06a9\u0646\u06cc\u062f \u062a\u0627 \u062e\u0631\u0648\u062c\u06cc \u0646\u062a\u0627\u06cc\u062c \u0645\u0633\u0627\u0628\u0642\u0647 \u062f\u0648\u0646\u062f\u0647 \u0631\u0627 \u0646\u0634\u0627\u0646 \u062f\u0647\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, MIN(CAST(end_time - start_time AS time)) AS min_time\r\nFROM race_results GROUP BY runner_name;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+----------+\r\n| runner_name | min_time |\r\n+-------------+----------+\r\n| bolt | 00:06:30 |\r\n| felix | 00:07:15 |\r\n+-------------+----------+\r\n2 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u06a9\u0648\u062a\u0627\u0647 \u062a\u0631\u06cc\u0646 \u0632\u0645\u0627\u0646 \u062f\u0648\u0646\u062f\u0647 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f\u060c \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f \u062d\u062f\u0627\u0642\u0644 \u0634\u0634 \u062f\u0642\u06cc\u0642\u0647 \u0648 30 \u062b\u0627\u0646\u06cc\u0647 \u0628\u0631\u0627\u06cc Bolt \u0648 \u0647\u0641\u062a \u062f\u0642\u06cc\u0642\u0647 \u0648 15 \u062b\u0627\u0646\u06cc\u0647 \u0628\u0631\u0627\u06cc Felix.<\/p>\n<p>\u062f\u0631 \u0645\u0631\u062d\u0644\u0647 \u0628\u0639\u062f\u060c \u0637\u0648\u0644\u0627\u0646\u06cc \u062a\u0631\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u0647\u0631 \u062f\u0648\u0646\u062f\u0647 \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f. \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0647\u0645\u0627\u0646 \u0646\u062d\u0648\u06cc \u06a9\u0647 \u0639\u0628\u0627\u0631\u062a \u0642\u0628\u0644\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u0628\u0627\u0631 MIN \u0631\u0627 \u0628\u0627 MAX \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, MAX(CAST(end_time - start_time AS time)) AS max_time\r\nFROM race_results GROUP BY runner_name;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+----------+\r\n| runner_name | max_time |\r\n+-------------+----------+\r\n| bolt | 03:23:10 |\r\n| felix | 04:02:10 |\r\n+-------------+----------+\r\n2 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u0628\u0647 \u0645\u0627 \u0645\u06cc \u06af\u0648\u06cc\u062f \u06a9\u0647 \u0637\u0648\u0644\u0627\u0646\u06cc \u062a\u0631\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u0628\u0648\u0644\u062a \u062f\u0631 \u0645\u062c\u0645\u0648\u0639 \u0633\u0647 \u0633\u0627\u0639\u062a\u060c 23 \u062f\u0642\u06cc\u0642\u0647 \u0648 10 \u062b\u0627\u0646\u06cc\u0647 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a. \u0648 \u0641\u0644\u06cc\u06a9\u0633 \u062f\u0631 \u0645\u062c\u0645\u0648\u0639 \u0686\u0647\u0627\u0631 \u0633\u0627\u0639\u062a \u0648 \u062f\u0648 \u062f\u0642\u06cc\u0642\u0647 \u0648 10 \u062b\u0627\u0646\u06cc\u0647 \u0628\u0648\u062f.<\/p>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0633\u0637\u062d \u0628\u0627\u0644\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u06a9\u0644 \u0633\u0627\u0639\u062a\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0647\u0631 \u062f\u0648\u0646\u062f\u0647 \u0635\u0631\u0641 \u062f\u0648\u06cc\u062f\u0646 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a\u060c \u062c\u0648\u06cc\u0627 \u0634\u0648\u06cc\u0645. \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u060c \u062a\u0627\u0628\u0639 \u062c\u0645\u0639 SUM \u0631\u0627 \u062a\u0631\u06a9\u06cc\u0628 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0645\u062c\u0645\u0648\u0639 \u06a9\u0644 \u0633\u0627\u0639\u062a \u0647\u0627 \u0631\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 end_time &#8211; start_time \u0628\u06cc\u0627\u0628\u06cc\u062f \u0648 \u0627\u0632 CAST \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0622\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0627\u062f\u0647 \u0628\u0647 TIME \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0641\u0631\u0627\u0645\u0648\u0634 \u0646\u06a9\u0646\u06cc\u062f \u06a9\u0647 GROUP BY \u0631\u0627 \u0628\u0631\u0627\u06cc \u0633\u0627\u0632\u0645\u0627\u0646\u062f\u0647\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u0646\u062a\u0627\u06cc\u062c \u0647\u0631 \u062f\u0648\u0646\u062f\u0647 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT runner_name, SUM(CAST(end_time - start_time AS time))\r\nAS total_hours FROM race_results GROUP BY runner_name;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\n+-------------+-------------+\r\n| runner_name | total_hours |\r\n+-------------+-------------+\r\n| bolt | 52880 |\r\n| felix | 76149 |\r\n+-------------+-------------+\r\n2 rows in set (0.00 sec)<\/code><\/pre>\n<\/div>\n<p>\u062c\u0627\u0644\u0628 \u0627\u06cc\u0646\u062c\u0627\u0633\u062a \u06a9\u0647 \u0627\u06cc\u0646 \u062e\u0631\u0648\u062c\u06cc \u062a\u0641\u0633\u06cc\u0631 MySQL \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u062f\u0631 \u0648\u0627\u0642\u0639 \u06a9\u0644 \u0632\u0645\u0627\u0646 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06af\u0631 \u0627\u06cc\u0646 \u0646\u062a\u0627\u06cc\u062c \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0632\u0645\u0627\u0646 \u0628\u062e\u0648\u0627\u0646\u06cc\u0645\u060c \u06a9\u0644 \u0632\u0645\u0627\u0646 \u0628\u0648\u0644\u062a \u0628\u0647 \u067e\u0646\u062c \u0633\u0627\u0639\u062a\u060c 28 \u062f\u0642\u06cc\u0642\u0647 \u0648 80 \u062b\u0627\u0646\u06cc\u0647 \u062a\u0642\u0633\u06cc\u0645 \u0645\u06cc \u0634\u0648\u062f. \u0648 \u0632\u0645\u0627\u0646 \u0641\u0644\u06cc\u06a9\u0633 \u0628\u0647 \u0647\u0641\u062a \u0633\u0627\u0639\u062a \u0648 61 \u062f\u0642\u06cc\u0642\u0647 \u0648 49 \u062b\u0627\u0646\u06cc\u0647 \u062a\u0642\u0633\u06cc\u0645 \u0645\u06cc \u0634\u0648\u062f. \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u06af\u0648\u06cc\u06cc\u062f\u060c \u0627\u06cc\u0646 \u062a\u0641\u06a9\u06cc\u06a9 \u0632\u0645\u0627\u0646 \u0645\u0646\u0637\u0642\u06cc \u0646\u06cc\u0633\u062a\u060c \u06a9\u0647 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0646\u0647 \u0632\u0645\u0627\u0646. \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644\u060c \u0627\u06af\u0631 \u0627\u06cc\u0646 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 DBMS \u0645\u062a\u0641\u0627\u0648\u062a\u060c \u0645\u0627\u0646\u0646\u062f PostgreSQL \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0646\u06cc\u062f\u060c \u0647\u0645\u0627\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u06a9\u0645\u06cc \u0645\u062a\u0641\u0627\u0648\u062a \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>SELECT runner_name, SUM(CAST(end_time - start_time AS time))\r\nAS total_hours FROM race_results GROUP BY runner_name;<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\nrunner_name | total_hours\r\n-------------+-------------\r\nfelix | 10:01:44\r\nbolt | 06:09:20\r\n(2 rows)<\/code><\/pre>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0648\u0631\u062f\u060c \u067e\u0631\u0633 \u0648 \u062c\u0648 \u062f\u0631 PostgreSQL \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0632\u0645\u0627\u0646 \u062a\u0641\u0633\u06cc\u0631 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0646\u062a\u0627\u06cc\u062c \u0641\u0644\u06cc\u06a9\u0633 \u062f\u0631 \u0645\u062c\u0645\u0648\u0639 \u0628\u0647 10 \u0633\u0627\u0639\u062a\u060c \u06cc\u06a9 \u062f\u0642\u06cc\u0642\u0647 \u0648 44 \u062b\u0627\u0646\u06cc\u0647 \u062a\u062c\u0632\u06cc\u0647 \u0645\u06cc \u0634\u0648\u062f. \u0648 \u0628\u0648\u0644\u062a \u0634\u0634 \u0633\u0627\u0639\u062a \u0648 \u0646\u0647 \u062f\u0642\u06cc\u0642\u0647 \u0648 20 \u062b\u0627\u0646\u06cc\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u06cc \u0627\u0633\u062a \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 DBMS \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u0642\u0627\u062f\u06cc\u0631 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0631\u0627 \u0645\u062a\u0641\u0627\u0648\u062a \u062a\u0641\u0633\u06cc\u0631 \u06a9\u0646\u0646\u062f\u060c \u062d\u062a\u06cc \u0627\u06af\u0631 \u0627\u0632 \u06cc\u06a9 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0648 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u0646\u062f.<\/p>\n<h2 id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\">\u0646\u062a\u06cc\u062c\u0647<\/h2>\n<p>\u062f\u0631\u06a9 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL \u0647\u0646\u06af\u0627\u0645 \u062c\u0633\u062a\u062c\u0648 \u0628\u0631\u0627\u06cc \u0646\u062a\u0627\u06cc\u062c \u062e\u0627\u0635 \u0645\u0627\u0646\u0646\u062f \u062f\u0642\u06cc\u0642\u0647\u060c \u062b\u0627\u0646\u06cc\u0647\u060c \u0633\u0627\u0639\u062a\u060c \u0631\u0648\u0632\u060c \u0645\u0627\u0647\u060c \u0633\u0627\u0644 \u0645\u0641\u06cc\u062f \u0627\u0633\u062a. \u06cc\u0627 \u062a\u0631\u06a9\u06cc\u0628\u06cc \u0627\u0632 \u0647\u0645\u0647 \u0622\u0646\u0647\u0627 \u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u06cc\u0646\u060c \u062a\u0648\u0627\u0628\u0639 \u0632\u06cc\u0627\u062f\u06cc \u0628\u0631\u0627\u06cc \u062a\u0627\u0631\u06cc\u062e \u0647\u0627 \u0648 \u0632\u0645\u0627\u0646 \u0647\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u06cc\u0627\u0641\u062a\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062e\u0627\u0635 \u0645\u0627\u0646\u0646\u062f \u062a\u0627\u0631\u06cc\u062e \u06cc\u0627 \u0632\u0645\u0627\u0646 \u0641\u0639\u0644\u06cc \u0631\u0627 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0641\u0642\u0637 \u0627\u0632 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062c\u0645\u0639 \u0648 \u062a\u0641\u0631\u06cc\u0642 \u062f\u0631 \u062a\u0627\u0631\u06cc\u062e \u0647\u0627 \u0648 \u0632\u0645\u0627\u0646 \u0647\u0627 \u062f\u0631 SQL \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u0628\u0627 \u0647\u0631 \u0639\u0628\u0627\u0631\u062a \u0631\u06cc\u0627\u0636\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0627\u0632 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0645\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u0639\u0628\u0627\u0631\u0627\u062a \u0631\u06cc\u0627\u0636\u06cc \u0648 \u062a\u0648\u0627\u0628\u0639 \u062c\u0645\u0639 \u0628\u06cc\u0634\u062a\u0631 \u0628\u06cc\u0627\u0645\u0648\u0632\u06cc\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0627 \u062c\u0633\u062a\u062c\u0648\u0647\u0627\u06cc \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062e\u0648\u062f \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0646\u06cc\u062f.<\/p>\n","protected":false},"excerpt":{"rendered":"\u0645\u0642\u062f\u0645\u0647 \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u067e\u0627\u06cc\u06af\u0627\u0647 \u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc \u0648 \u0632\u0628\u0627\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0633\u0627\u062e\u062a\u0627\u0631\u06cc\u0627\u0641\u062a\u0647 (SQL)\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a&hellip;\n","protected":false},"author":1,"featured_media":15975,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_focuskeywords":"","_yoast_wpseo_primary_category":"193","footnotes":""},"categories":[193,349],"tags":[403,391],"class_list":{"0":"post-15974","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tutorials","8":"category-database","9":"tag-data-base","10":"tag-mysql"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL - \u0628\u0644\u0627\u06af ITPiran<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/\" \/>\n<meta property=\"og:locale\" content=\"fa_IR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL - \u0628\u0644\u0627\u06af ITPiran\" \/>\n<meta property=\"og:description\" content=\"\u0645\u0642\u062f\u0645\u0647 \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u067e\u0627\u06cc\u06af\u0627\u0647 \u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc \u0648 \u0632\u0628\u0627\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0633\u0627\u062e\u062a\u0627\u0631\u06cc\u0627\u0641\u062a\u0647 (SQL)\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/\" \/>\n<meta property=\"og:site_name\" content=\"\u0628\u0644\u0627\u06af ITPiran\" \/>\n<meta property=\"article:published_time\" content=\"2024-07-25T08:40:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.itpiran.net\/2024\/07\/25111554\/SQL-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1793\" \/>\n\t<meta property=\"og:image:height\" content=\"1110\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0646\u0648\u0634\u062a\u0647\u200c\u0634\u062f\u0647 \u0628\u062f\u0633\u062a\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0632\u0645\u0627\u0646 \u062a\u0642\u0631\u06cc\u0628\u06cc \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u062f\u0642\u06cc\u0642\u0647\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#\\\/schema\\\/person\\\/04ed27b919baca468a2273f8e4318f81\"},\"headline\":\"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL\",\"datePublished\":\"2024-07-25T08:40:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/\"},\"wordCount\":182,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cdn.itpiran.net\\\/2024\\\/07\\\/25111554\\\/SQL-1.jpg\",\"keywords\":[\"data base\",\"MySQL\"],\"articleSection\":[\"\u0622\u0645\u0648\u0632\u0634\u06cc\",\"\u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647\"],\"inLanguage\":\"fa-IR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/\",\"url\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/\",\"name\":\"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL - \u0628\u0644\u0627\u06af ITPiran\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cdn.itpiran.net\\\/2024\\\/07\\\/25111554\\\/SQL-1.jpg\",\"datePublished\":\"2024-07-25T08:40:56+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#breadcrumb\"},\"inLanguage\":\"fa-IR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fa-IR\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#primaryimage\",\"url\":\"https:\\\/\\\/cdn.itpiran.net\\\/2024\\\/07\\\/25111554\\\/SQL-1.jpg\",\"contentUrl\":\"https:\\\/\\\/cdn.itpiran.net\\\/2024\\\/07\\\/25111554\\\/SQL-1.jpg\",\"width\":1793,\"height\":1110},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/tutorials\\\/how-to-work-with-dates-and-times-in-sql\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u0622\u0645\u0648\u0632\u0634\u06cc\",\"item\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/category\\\/tutorials\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/\",\"name\":\"\u0628\u0644\u0627\u06af ITPiran\",\"description\":\"\u0627\u062e\u0628\u0627\u0631 \u0648 \u0645\u0642\u0627\u0644\u0627\u062a \u062a\u062c\u0627\u0631\u062a \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u06cc\u0631\u0627\u0646\u06cc\u0627\u0646\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fa-IR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#organization\",\"name\":\"\u0628\u0644\u0627\u06af \u062a\u062c\u0627\u0631\u062a \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u06cc\u0631\u0627\u0646\u06cc\u0627\u0646\",\"alternateName\":\"ITPIran Blog\",\"url\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fa-IR\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cdn.itpiran.net\\\/2023\\\/12\\\/27150508\\\/cropped-ITPIRAN-BLOG-LOGO-2.png\",\"contentUrl\":\"https:\\\/\\\/cdn.itpiran.net\\\/2023\\\/12\\\/27150508\\\/cropped-ITPIRAN-BLOG-LOGO-2.png\",\"width\":512,\"height\":512,\"caption\":\"\u0628\u0644\u0627\u06af \u062a\u062c\u0627\u0631\u062a \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u06cc\u0631\u0627\u0646\u06cc\u0627\u0646\"},\"image\":{\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/#\\\/schema\\\/person\\\/04ed27b919baca468a2273f8e4318f81\",\"name\":\"admin\",\"url\":\"https:\\\/\\\/www.itpiran.net\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL - \u0628\u0644\u0627\u06af ITPiran","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/","og_locale":"fa_IR","og_type":"article","og_title":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL - \u0628\u0644\u0627\u06af ITPiran","og_description":"\u0645\u0642\u062f\u0645\u0647 \u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u067e\u0627\u06cc\u06af\u0627\u0647 \u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc \u0648 \u0632\u0628\u0627\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0633\u0627\u062e\u062a\u0627\u0631\u06cc\u0627\u0641\u062a\u0647 (SQL)\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a&hellip;","og_url":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/","og_site_name":"\u0628\u0644\u0627\u06af ITPiran","article_published_time":"2024-07-25T08:40:56+00:00","og_image":[{"width":1793,"height":1110,"url":"https:\/\/cdn.itpiran.net\/2024\/07\/25111554\/SQL-1.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u0646\u0648\u0634\u062a\u0647\u200c\u0634\u062f\u0647 \u0628\u062f\u0633\u062a":"admin","\u0632\u0645\u0627\u0646 \u062a\u0642\u0631\u06cc\u0628\u06cc \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646":"5 \u062f\u0642\u06cc\u0642\u0647"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#article","isPartOf":{"@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/"},"author":{"name":"admin","@id":"https:\/\/www.itpiran.net\/blog\/#\/schema\/person\/04ed27b919baca468a2273f8e4318f81"},"headline":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL","datePublished":"2024-07-25T08:40:56+00:00","mainEntityOfPage":{"@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/"},"wordCount":182,"commentCount":0,"publisher":{"@id":"https:\/\/www.itpiran.net\/blog\/#organization"},"image":{"@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#primaryimage"},"thumbnailUrl":"https:\/\/cdn.itpiran.net\/2024\/07\/25111554\/SQL-1.jpg","keywords":["data base","MySQL"],"articleSection":["\u0622\u0645\u0648\u0632\u0634\u06cc","\u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647"],"inLanguage":"fa-IR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/","url":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/","name":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL - \u0628\u0644\u0627\u06af ITPiran","isPartOf":{"@id":"https:\/\/www.itpiran.net\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#primaryimage"},"image":{"@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#primaryimage"},"thumbnailUrl":"https:\/\/cdn.itpiran.net\/2024\/07\/25111554\/SQL-1.jpg","datePublished":"2024-07-25T08:40:56+00:00","breadcrumb":{"@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#breadcrumb"},"inLanguage":"fa-IR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/"]}]},{"@type":"ImageObject","inLanguage":"fa-IR","@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#primaryimage","url":"https:\/\/cdn.itpiran.net\/2024\/07\/25111554\/SQL-1.jpg","contentUrl":"https:\/\/cdn.itpiran.net\/2024\/07\/25111554\/SQL-1.jpg","width":1793,"height":1110},{"@type":"BreadcrumbList","@id":"https:\/\/www.itpiran.net\/blog\/tutorials\/how-to-work-with-dates-and-times-in-sql\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.itpiran.net\/blog\/"},{"@type":"ListItem","position":2,"name":"\u0622\u0645\u0648\u0632\u0634\u06cc","item":"https:\/\/www.itpiran.net\/blog\/category\/tutorials\/"},{"@type":"ListItem","position":3,"name":"\u0646\u062d\u0648\u0647 \u06a9\u0627\u0631 \u0628\u0627 \u062a\u0627\u0631\u06cc\u062e \u0648 \u0632\u0645\u0627\u0646 \u062f\u0631 SQL"}]},{"@type":"WebSite","@id":"https:\/\/www.itpiran.net\/blog\/#website","url":"https:\/\/www.itpiran.net\/blog\/","name":"\u0628\u0644\u0627\u06af ITPiran","description":"\u0627\u062e\u0628\u0627\u0631 \u0648 \u0645\u0642\u0627\u0644\u0627\u062a \u062a\u062c\u0627\u0631\u062a \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u06cc\u0631\u0627\u0646\u06cc\u0627\u0646","publisher":{"@id":"https:\/\/www.itpiran.net\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.itpiran.net\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fa-IR"},{"@type":"Organization","@id":"https:\/\/www.itpiran.net\/blog\/#organization","name":"\u0628\u0644\u0627\u06af \u062a\u062c\u0627\u0631\u062a \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u06cc\u0631\u0627\u0646\u06cc\u0627\u0646","alternateName":"ITPIran Blog","url":"https:\/\/www.itpiran.net\/blog\/","logo":{"@type":"ImageObject","inLanguage":"fa-IR","@id":"https:\/\/www.itpiran.net\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/cdn.itpiran.net\/2023\/12\/27150508\/cropped-ITPIRAN-BLOG-LOGO-2.png","contentUrl":"https:\/\/cdn.itpiran.net\/2023\/12\/27150508\/cropped-ITPIRAN-BLOG-LOGO-2.png","width":512,"height":512,"caption":"\u0628\u0644\u0627\u06af \u062a\u062c\u0627\u0631\u062a \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u06cc\u0631\u0627\u0646\u06cc\u0627\u0646"},"image":{"@id":"https:\/\/www.itpiran.net\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.itpiran.net\/blog\/#\/schema\/person\/04ed27b919baca468a2273f8e4318f81","name":"admin","url":"https:\/\/www.itpiran.net\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/posts\/15974","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/comments?post=15974"}],"version-history":[{"count":3,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/posts\/15974\/revisions"}],"predecessor-version":[{"id":15978,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/posts\/15974\/revisions\/15978"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/media\/15975"}],"wp:attachment":[{"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/media?parent=15974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/categories?post=15974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.itpiran.net\/blog\/wp-json\/wp\/v2\/tags?post=15974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}