{"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\/ar\/tutorials\/how-to-work-with-dates-and-times-in-sql\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0641\u064a SQL"},"content":{"rendered":"<h2 id=\"%d9%85%d9%82%d8%af%d9%85%d9%87\">\u0645\u0642\u062f\u0645\u0629<\/h2>\n<p>\u0639\u0646\u062f \u0627\u0644\u0639\u0645\u0644 \u0645\u0639 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0639\u0644\u0627\u0626\u0642\u064a\u0629 \u0648\u0644\u063a\u0629 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 (SQL)\u060c \u0642\u062f \u062a\u062d\u062a\u0627\u062c \u0623\u062d\u064a\u0627\u0646\u064b\u0627 \u0625\u0644\u0649 \u0627\u0644\u0639\u0645\u0644 \u0645\u0639 \u0642\u064a\u0645 \u062a\u064f\u0645\u062b\u0644 \u062a\u0648\u0627\u0631\u064a\u062e \u0623\u0648 \u0623\u0648\u0642\u0627\u062a\u064b\u0627 \u0645\u062d\u062f\u062f\u0629. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0642\u062f \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062d\u0633\u0627\u0628 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0633\u0627\u0639\u0627\u062a \u0627\u0644\u0645\u064f\u0633\u062a\u063a\u0631\u0642\u0629 \u0641\u064a \u0646\u0634\u0627\u0637 \u0645\u064f\u0639\u064a\u0646\u060c \u0623\u0648 \u0631\u0628\u0645\u0627 \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062a\u062c\u0645\u064a\u0639 \u0642\u064a\u0645 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0623\u0648 \u0627\u0644\u0648\u0642\u062a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u064f\u0639\u0627\u0645\u0644\u0627\u062a \u0648\u062f\u0648\u0627\u0644 \u0631\u064a\u0627\u0636\u064a\u0629 \u0644\u062d\u0633\u0627\u0628 \u0645\u062c\u0645\u0648\u0639\u0647\u0627 \u0623\u0648 \u0645\u062a\u0648\u0633\u0637\u0647\u0627.<\/p>\n<p>\u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a\u060c \u0633\u062a\u062a\u0639\u0644\u0645 \u0643\u064a\u0641\u064a\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0641\u064a SQL. \u0633\u062a\u0628\u062f\u0623 \u0628\u0625\u062c\u0631\u0627\u0621 \u0639\u0645\u0644\u064a\u0627\u062a \u062d\u0633\u0627\u0628\u064a\u0629 \u0648\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0648\u0627\u0644 \u0645\u062e\u062a\u0644\u0641\u0629 \u0644\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0639\u0628\u0627\u0631\u0629 SELECT \u0641\u0642\u0637. \u0628\u0639\u062f \u0630\u0644\u0643\u060c \u0633\u062a\u062a\u062f\u0631\u0628 \u0639\u0644\u0649 \u062a\u0634\u063a\u064a\u0644 \u0627\u0633\u062a\u0639\u0644\u0627\u0645\u0627\u062a \u0639\u0644\u0649 \u0628\u064a\u0627\u0646\u0627\u062a \u0646\u0645\u0648\u0630\u062c\u064a\u0629\u060c \u0648\u0633\u062a\u062a\u0639\u0644\u0645 \u0643\u064a\u0641\u064a\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u0629 CAST \u0644\u062a\u0633\u0647\u064a\u0644 \u0641\u0647\u0645 \u0627\u0644\u0646\u062a\u0627\u0626\u062c.<\/p>\n<h5 id=\"%d9%be%db%8c%d8%b4-%d9%86%db%8c%d8%a7%d8%b2%d9%87%d8%a7\">\u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629<\/h5>\n<p>\u0644\u0625\u0643\u0645\u0627\u0644 \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a\u060c \u0633\u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649:<\/p>\n<ul>\n<li>\u062e\u0627\u062f\u0645 \u064a\u0639\u0645\u0644 \u0628\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 Ubuntu 20.04\u060c \u0645\u0639 \u0645\u0633\u062a\u062e\u062f\u0645 \u063a\u064a\u0631 \u062c\u0630\u0631 \u064a\u062a\u0645\u062a\u0639 \u0628\u0627\u0645\u062a\u064a\u0627\u0632\u0627\u062a \u0625\u062f\u0627\u0631\u064a\u0629 sudo \u0648\u062c\u062f\u0627\u0631 \u062d\u0645\u0627\u064a\u0629 \u0645\u0645\u0643\u0651\u0646.<\/li>\n<li>\u062a\u0645 \u062a\u062b\u0628\u064a\u062a MySQL \u0648\u062a\u0623\u0645\u064a\u0646\u0647 \u0639\u0644\u0649 \u0627\u0644\u062e\u0627\u062f\u0645.<\/li>\n<\/ul>\n<p><span style=\"color: #ff0000;\">\u0645\u0644\u0627\u062d\u0638\u0629: \u064a\u064f\u0631\u062c\u0649 \u0627\u0644\u0639\u0644\u0645 \u0623\u0646 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0623\u0646\u0638\u0645\u0629 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0639\u0644\u0627\u0626\u0642\u064a\u0629 \u062a\u0633\u062a\u062e\u062f\u0645 \u062a\u0637\u0628\u064a\u0642\u0627\u062a SQL \u0641\u0631\u064a\u062f\u0629 \u062e\u0627\u0635\u0629 \u0628\u0647\u0627. \u0645\u0639 \u0623\u0646 \u0627\u0644\u0623\u0648\u0627\u0645\u0631 \u0627\u0644\u0645\u0630\u0643\u0648\u0631\u0629 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a \u0633\u062a\u0639\u0645\u0644 \u0639\u0644\u0649 \u0645\u0639\u0638\u0645 \u0623\u0646\u0638\u0645\u0629 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0639\u0644\u0627\u0626\u0642\u064a\u0629\u060c \u0625\u0644\u0627 \u0623\u0646 \u0627\u0644\u0635\u064a\u063a\u0629 \u0623\u0648 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u062f\u0642\u064a\u0642\u0629 \u0642\u062f \u062a\u062e\u062a\u0644\u0641 \u0625\u0630\u0627 \u062c\u0631\u0628\u062a\u0647\u0627 \u0639\u0644\u0649 \u0646\u0638\u0627\u0645 \u0622\u062e\u0631 \u063a\u064a\u0631 MySQL.<\/span><\/p>\n<p>\u0644\u0644\u062a\u062f\u0631\u0628 \u0639\u0644\u0649 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a\u060c \u0633\u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0648\u062c\u062f\u0648\u0644 \u0645\u064f\u062d\u0645\u0651\u0644\u064a\u0646 \u0628\u0628\u064a\u0627\u0646\u0627\u062a \u0646\u0645\u0648\u0630\u062c\u064a\u0629. \u0625\u0630\u0627 \u0644\u0645 \u062a\u0643\u0646 \u0644\u062f\u064a\u0643 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u062c\u0627\u0647\u0632\u0629 \u0644\u0644\u0625\u062f\u0631\u0627\u062c\u060c \u064a\u0645\u0643\u0646\u0643 \u0642\u0631\u0627\u0621\u0629 \u0642\u0633\u0645 &quot;\u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0628\u0640 MySQL \u0648\u0625\u0639\u062f\u0627\u062f \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0646\u0645\u0648\u0630\u062c\u064a\u0629&quot; \u0644\u0645\u0639\u0631\u0641\u0629 \u0643\u064a\u0641\u064a\u0629 \u0625\u0646\u0634\u0627\u0621 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0648\u062c\u062f\u0648\u0644. \u0633\u064a\u064f\u0634\u064a\u0631 \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a \u0625\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u0644\u062c\u062f\u0648\u0644 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u064a\u0646 \u0637\u0648\u0627\u0644 \u0627\u0644\u062f\u0631\u0633.<\/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\u0644\u0627\u062a\u0635\u0627\u0644 \u0628\u0640 MySQL \u0648\u0625\u0639\u062f\u0627\u062f \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0646\u0645\u0648\u0630\u062c\u064a\u0629<\/h2>\n<p>\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a SQL \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643 \u062a\u0639\u0645\u0644 \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0628\u0639\u064a\u062f\u060c \u0641\u0642\u0645 \u0628\u062a\u0633\u062c\u064a\u0644 \u0627\u0644\u062f\u062e\u0648\u0644 \u0625\u0644\u0649 \u0627\u0644\u062e\u0627\u062f\u0645 \u0627\u0644\u062e\u0627\u0635 \u0628\u0643 \u0639\u0628\u0631 SSH \u0645\u0646 \u062c\u0647\u0627\u0632\u0643 \u0627\u0644\u0645\u062d\u0644\u064a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0628\u0639\u062f \u0630\u0644\u0643\u060c \u0627\u0641\u062a\u062d \u0645\u0648\u062c\u0647 MySQL \u0648\u0627\u0633\u062a\u0628\u062f\u0644 Sami \u0628\u0645\u0639\u0644\u0648\u0645\u0627\u062a \u062d\u0633\u0627\u0628 MySQL \u0627\u0644\u062e\u0627\u0635 \u0628\u0643:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>mysql -u sammy -p\r\n<\/code><\/pre>\n<\/div>\n<p>\u0625\u0646\u0634\u0627\u0621 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u062a\u0633\u0645\u0649 datetimeDB:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>CREATE DATABASE datetimeDB;\r\n<\/code><\/pre>\n<\/div>\n<p>\u0625\u0630\u0627 \u062a\u0645 \u0625\u0646\u0634\u0627\u0621 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0628\u0646\u062c\u0627\u062d\u060c \u0641\u0633\u0648\u0641 \u062a\u062a\u0644\u0642\u0649 \u0627\u0644\u0625\u062e\u0631\u0627\u062c \u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0644\u062a\u062d\u062f\u064a\u062f \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a datetimeDB\u060c \u0642\u0645 \u0628\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0639\u0628\u0627\u0631\u0629 USE \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>Output\r\nDatabase changed<\/code><\/pre>\n<\/div>\n<p>\u0628\u0639\u062f \u062a\u062d\u062f\u064a\u062f \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\u060c \u0623\u0646\u0634\u0626 \u062c\u062f\u0648\u0644\u064b\u0627 \u0641\u064a\u0647\u0627. \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u062f\u0631\u0633\u060c \u0633\u0646\u0646\u0634\u0626 \u062c\u062f\u0648\u0644\u064b\u0627 \u064a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0646\u062a\u0627\u0626\u062c \u0639\u062f\u0651\u0627\u0626\u064a\u0646 \u0641\u064a \u0633\u0628\u0627\u0642\u064a\u0646 \u0645\u062e\u062a\u0644\u0641\u064a\u0646 \u0634\u0627\u0631\u0643\u0627 \u0641\u064a\u0647\u0645\u0627 \u0639\u0644\u0649 \u0645\u062f\u0627\u0631 \u0627\u0644\u0639\u0627\u0645. \u064a\u062d\u062a\u0648\u064a \u0647\u0630\u0627 \u0627\u0644\u062c\u062f\u0648\u0644 \u0639\u0644\u0649 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0633\u0628\u0639\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/p>\n<ul>\n<li>race_id: \u064a\u0645\u062b\u0644 \u0642\u064a\u0645 \u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a int \u0648\u064a\u0639\u0645\u0644 \u0643\u0645\u0641\u062a\u0627\u062d \u0623\u0633\u0627\u0633\u064a \u0644\u0644\u062c\u062f\u0648\u0644\u060c \u0623\u064a \u0623\u0646 \u0643\u0644 \u0642\u064a\u0645\u0629 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0639\u0645\u0648\u062f \u062a\u0639\u0645\u0644 \u0643\u0645\u0639\u0631\u0641 \u0641\u0631\u064a\u062f \u0644\u0644\u0635\u0641 \u0627\u0644\u0645\u0642\u0627\u0628\u0644.<\/li>\n<li>runner_name: \u064a\u0633\u062a\u062e\u062f\u0645 \u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a varchar \u0628\u062d\u062f \u0623\u0642\u0635\u0649 30 \u062d\u0631\u0641\u064b\u0627 \u0644\u0623\u0633\u0645\u0627\u0621 \u0627\u0644\u0639\u062f\u0627\u0626\u064a\u0646 Bolt \u0648Felix.<\/li>\n<li>race_name: \u064a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0633\u0628\u0627\u0642 \u0645\u0639 \u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a varchar \u064a\u0635\u0644 \u0625\u0644\u0649 20 \u062d\u0631\u0641\u064b\u0627.<\/li>\n<li>start_day: \u064a\u0633\u062a\u062e\u062f\u0645 \u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a DATE \u0644\u062a\u062a\u0628\u0639 \u062a\u0627\u0631\u064a\u062e \u0645\u0628\u0627\u0631\u0627\u0629 \u0645\u062d\u062f\u062f\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0627\u0644\u0633\u0646\u0629 \u0648\u0627\u0644\u0634\u0647\u0631 \u0648\u0627\u0644\u064a\u0648\u0645. \u064a\u062a\u0648\u0627\u0641\u0642 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0639 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u062a\u0627\u0644\u064a\u0629: \u0623\u0631\u0628\u0639\u0629 \u0623\u0631\u0642\u0627\u0645 \u0644\u0644\u0633\u0646\u0629\u060c \u0648\u0628\u062d\u062f \u0623\u0642\u0635\u0649 \u0631\u0642\u0645\u064a\u0646 \u0644\u0644\u0634\u0647\u0631 \u0648\u0627\u0644\u064a\u0648\u0645 (YYYY-MM-DD).<\/li>\n<li>\u0648\u0642\u062a \u0627\u0644\u0628\u062f\u0621: \u064a\u064f\u0645\u062b\u0644 \u0648\u0642\u062a \u0628\u062f\u0621 \u0627\u0644\u0645\u0628\u0627\u0631\u0627\u0629 \u0628\u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0648\u0642\u062a (TIME) \u0628\u0627\u0644\u0633\u0627\u0639\u0627\u062a \u0648\u0627\u0644\u062f\u0642\u0627\u0626\u0642 \u0648\u0627\u0644\u062b\u0648\u0627\u0646\u064a (HH:MM:SS). \u064a\u062a\u0628\u0639 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u062a\u0646\u0633\u064a\u0642 \u0627\u0644\u0633\u0627\u0639\u0629 \u0662\u0664 \u0633\u0627\u0639\u0629\u060c \u0645\u062b\u0644 \u0661\u0665:\u0660\u0660 \u0627\u0644\u0630\u064a \u064a\u064f\u0639\u0627\u062f\u0644 \u0663:\u0660\u0660 \u0645\u0633\u0627\u0621\u064b.<\/li>\n<li>\u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0623\u0645\u064a\u0627\u0644: \u064a\u0639\u0631\u0636 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0623\u0645\u064a\u0627\u0644 \u0644\u0643\u0644 \u0633\u0628\u0627\u0642 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0639\u0634\u0631\u064a\u060c \u0644\u0623\u0646 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0623\u0645\u064a\u0627\u0644 \u0644\u0643\u0644 \u0633\u0628\u0627\u0642 \u0644\u064a\u0633\u062a \u0623\u0639\u062f\u0627\u062f\u064b\u0627 \u0635\u062d\u064a\u062d\u0629. \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u064a\u064f\u062d\u062f\u062f \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0639\u0634\u0631\u064a \u062f\u0642\u0629 \u062b\u0644\u0627\u062b\u0629 \u0628\u0645\u0642\u064a\u0627\u0633 \u0648\u0627\u062d\u062f\u060c \u0645\u0645\u0627 \u064a\u0639\u0646\u064a \u0623\u0646 \u0643\u0644 \u0642\u064a\u0645\u0629 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0639\u0645\u0648\u062f \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062a\u0643\u0648\u0646 \u0645\u0646 \u062b\u0644\u0627\u062b\u0629 \u0623\u0631\u0642\u0627\u0645\u060c \u0628\u062d\u064a\u062b \u064a\u0643\u0648\u0646 \u0623\u062d\u062f \u0647\u0630\u0647 \u0627\u0644\u0623\u0631\u0642\u0627\u0645 \u0639\u0644\u0649 \u064a\u0645\u064a\u0646 \u0627\u0644\u0641\u0627\u0635\u0644\u0629 \u0627\u0644\u0639\u0634\u0631\u064a\u0629.<\/li>\n<li>end_time: \u064a\u0633\u062a\u062e\u062f\u0645 \u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a TIMESTAMP \u0644\u062a\u062a\u0628\u0639 \u0648\u0642\u062a \u0627\u0644\u0645\u062a\u0633\u0627\u0628\u0642\u064a\u0646 \u0641\u064a \u0646\u0647\u0627\u064a\u0629 \u0627\u0644\u0633\u0628\u0627\u0642. \u064a\u062c\u0645\u0639 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0641\u064a \u0633\u0644\u0633\u0644\u0629 \u0646\u0635\u064a\u0629\u060c \u0648\u064a\u0643\u0648\u0646 \u062a\u0646\u0633\u064a\u0642\u0647 \u0645\u0632\u064a\u062c\u064b\u0627 \u0645\u0646 DATE \u0648TIME: (YYYY-MM-DD HH:MM:SS).<\/li>\n<\/ul>\n<p>\u0642\u0645 \u0628\u0625\u0646\u0634\u0627\u0621 \u0627\u0644\u062c\u062f\u0648\u0644 \u0639\u0646 \u0637\u0631\u064a\u0642 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0623\u0645\u0631 CREATE TABLE:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u062b\u0645 \u0623\u062f\u062e\u0644 \u0628\u0639\u0636 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629 \u0641\u064a \u0627\u0644\u062c\u062f\u0648\u0644 \u0627\u0644\u0641\u0627\u0631\u063a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0628\u0645\u062c\u0631\u062f \u0625\u062f\u062e\u0627\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\u060c \u0633\u062a\u0643\u0648\u0646 \u062c\u0627\u0647\u0632\u064b\u0627 \u0644\u0628\u062f\u0621 \u0645\u0645\u0627\u0631\u0633\u0629 \u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0628\u064a\u0629 \u0648\u0627\u0644\u0648\u0638\u0627\u0626\u0641 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0641\u064a SQL.<\/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\u062e\u062f\u0627\u0645 \u0627\u0644\u062d\u0633\u0627\u0628 \u0645\u0639 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a<\/h2>\n<p>\u0641\u064a SQL\u060c \u064a\u0645\u0643\u0646\u0643 \u0645\u0639\u0627\u0644\u062c\u0629 \u0642\u064a\u0645 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062a\u0639\u0628\u064a\u0631\u0627\u062a \u0631\u064a\u0627\u0636\u064a\u0629. \u0643\u0644 \u0645\u0627 \u062a\u062d\u062a\u0627\u062c\u0647 \u0647\u0648 \u0645\u064f\u0639\u0627\u0645\u0644 \u0631\u064a\u0627\u0636\u064a \u0648\u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u062a\u064a \u062a\u0631\u064a\u062f \u062d\u0633\u0627\u0628\u0647\u0627.<\/p>\n<p>\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0644\u0646\u0641\u062a\u0631\u0636 \u0623\u0646\u0643 \u062a\u0631\u064a\u062f \u0627\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u062a\u0627\u0631\u064a\u062e \u064a\u062a\u0623\u062e\u0631 \u0628\u0623\u064a\u0627\u0645 \u0645\u062d\u062f\u062f\u0629 \u0639\u0646 \u062a\u0627\u0631\u064a\u062e \u0622\u062e\u0631. \u064a\u0623\u062e\u0630 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u062a\u0627\u0644\u064a \u0642\u064a\u0645\u0629 \u062a\u0627\u0631\u064a\u062e (2022-10-05) \u0648\u064a\u0636\u064a\u0641 \u0625\u0644\u064a\u0647\u0627 17 \u0644\u0625\u0631\u062c\u0627\u0639 \u0642\u064a\u0645\u0629 \u062a\u0627\u0631\u064a\u062e \u0628\u0639\u062f \u0633\u0628\u0639\u0629 \u0639\u0634\u0631 \u064a\u0648\u0645\u064b\u0627 \u0645\u0646 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0627\u0644\u0645\u062d\u062f\u062f \u0641\u064a \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645. \u062a\u062c\u062f\u0631 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0625\u0644\u0649 \u0623\u0646 \u0647\u0630\u0627 \u0627\u0644\u0645\u062b\u0627\u0644 \u064a\u062d\u062f\u062f 2022-10-05 \u0643\u0642\u064a\u0645\u0629 DATE \u0644\u0636\u0645\u0627\u0646 \u0639\u062f\u0645 \u062a\u0641\u0633\u064a\u0631 \u0646\u0638\u0627\u0645 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0644\u0647\u0627 \u0643\u0633\u0644\u0633\u0644\u0629 \u0646\u0635\u064a\u0629 \u0623\u0648 \u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a \u0622\u062e\u0631:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0643\u0645\u0627 \u064a\u0638\u0647\u0631 \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c\u060c \u0641\u0625\u0646 17 \u064a\u0648\u0645\u064b\u0627 \u0628\u0639\u062f 2022-10-05 \u0647\u0648 2022-10-22\u060c \u0623\u0648 22 \u0623\u0643\u062a\u0648\u0628\u0631 2022.<\/p>\n<p>\u0643\u0645\u062b\u0627\u0644 \u0622\u062e\u0631\u060c \u0644\u0646\u0641\u062a\u0631\u0636 \u0623\u0646\u0643 \u062a\u0631\u064a\u062f \u062d\u0633\u0627\u0628 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0633\u0627\u0639\u0627\u062a \u0628\u064a\u0646 \u0648\u0642\u062a\u064a\u0646 \u0645\u062e\u062a\u0644\u0641\u064a\u0646. \u064a\u0645\u0643\u0646\u0643 \u0627\u0644\u0642\u064a\u0627\u0645 \u0628\u0630\u0644\u0643 \u0628\u0637\u0631\u062d \u0648\u0642\u062a\u064a\u0646 \u0645\u0646 \u0628\u0639\u0636\u0647\u0645\u0627. \u0641\u064a \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u062a\u0627\u0644\u064a\u060c 11:00 \u0647\u064a \u0642\u064a\u0645\u0629 \u0627\u0644\u0648\u0642\u062a \u0627\u0644\u0623\u0648\u0644\u0649 \u06483:00 \u0647\u064a \u0642\u064a\u0645\u0629 \u0627\u0644\u0648\u0642\u062a \u0627\u0644\u062b\u0627\u0646\u064a\u0629. \u0647\u0646\u0627\u060c \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f \u0623\u0646 \u0643\u0644\u062a\u0627 \u0627\u0644\u0642\u064a\u0645\u062a\u064a\u0646 TIME \u0644\u0625\u0631\u062c\u0627\u0639 \u0627\u0644\u0641\u0631\u0642 \u0628\u0627\u0644\u0633\u0627\u0639\u0627\u062a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u064a\u062e\u0628\u0631\u0643 \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c \u0623\u0646 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0627\u0644\u0633\u0627\u0639\u0629 11:00 \u0648\u0627\u0644\u0633\u0627\u0639\u0629 3:00 \u0647\u0648 80,000\u060c \u0623\u0648 8 \u0633\u0627\u0639\u0627\u062a.<\/p>\n<p>\u0627\u0644\u0622\u0646\u060c \u062a\u062f\u0631\u0628 \u0639\u0644\u0649 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062d\u0633\u0627\u0628\u0627\u062a \u0639\u0644\u0649 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0645\u0646 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0639\u064a\u0646\u0629. \u0641\u064a \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u0623\u0648\u0644\u060c \u0627\u062d\u0633\u0628 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0648\u0642\u062a \u0627\u0644\u0630\u064a \u0627\u0633\u062a\u063a\u0631\u0642\u0647 \u0627\u0644\u0645\u062a\u0633\u0627\u0628\u0642\u0648\u0646 \u0644\u0625\u0646\u0647\u0627\u0621 \u0643\u0644 \u0633\u0628\u0627\u0642 \u0628\u0637\u0631\u062d \u0648\u0642\u062a \u0627\u0644\u0646\u0647\u0627\u064a\u0629 \u0645\u0646 \u0648\u0642\u062a \u0627\u0644\u0628\u062f\u0627\u064a\u0629:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0633\u062a\u0644\u0627\u062d\u0638 \u0623\u0646 \u0627\u0644\u0646\u0627\u062a\u062c \u0641\u064a \u0639\u0645\u0648\u062f &quot;\u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0648\u0642\u062a&quot; \u0637\u0648\u064a\u0644 \u062c\u062f\u064b\u0627 \u0648\u064a\u0635\u0639\u0628 \u0642\u0631\u0627\u0621\u062a\u0647. \u0633\u0646\u0648\u0636\u062d \u0644\u0643 \u0628\u0639\u062f \u0630\u0644\u0643 \u0643\u064a\u0641\u064a\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u0629 CAST \u0644\u062a\u062d\u0648\u064a\u0644 \u0642\u064a\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0647\u0630\u0647 \u0644\u062a\u0635\u0628\u062d \u0623\u0648\u0636\u062d \u0644\u0644\u0642\u0631\u0627\u0621\u0629.<\/p>\n<p>\u0627\u0644\u0622\u0646\u060c \u0625\u0630\u0627 \u0643\u0646\u062a \u0645\u0647\u062a\u0645\u064b\u0627 \u0641\u0642\u0637 \u0628\u0623\u062f\u0627\u0621 \u0643\u0644 \u0639\u062f\u0651\u0627\u0621 \u0641\u064a \u0627\u0644\u0633\u0628\u0627\u0642\u0627\u062a \u0627\u0644\u0623\u0637\u0648\u0644\u060c \u0645\u062b\u0644 \u0633\u0628\u0627\u0642\u0627\u062a \u0646\u0635\u0641 \u0627\u0644\u0645\u0627\u0631\u0627\u062b\u0648\u0646 \u0623\u0648 \u0627\u0644\u0645\u0627\u0631\u0627\u062b\u0648\u0646 \u0627\u0644\u0643\u0627\u0645\u0644\u060c \u064a\u0645\u0643\u0646\u0643 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0639\u0646 \u0628\u064a\u0627\u0646\u0627\u062a\u0643 \u0644\u0627\u0633\u062a\u0631\u062c\u0627\u0639 \u062a\u0644\u0643 \u0627\u0644\u0645\u0639\u0644\u0648\u0645\u0627\u062a. \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645\u060c \u0627\u0637\u0631\u062d \u0648\u0642\u062a \u0627\u0644\u0646\u0647\u0627\u064a\u0629 \u0645\u0646 \u0648\u0642\u062a \u0627\u0644\u0628\u062f\u0627\u064a\u0629\u060c \u0648\u062d\u062f\u062f \u0646\u062a\u0627\u0626\u062c\u0643 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0634\u0631\u0637 WHERE \u0644\u0627\u0633\u062a\u0631\u062c\u0627\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u062a\u064a \u064a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0623\u0645\u064a\u0627\u0644 \u0623\u0643\u0628\u0631 \u0645\u0646 12:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0642\u0633\u0645\u060c \u0623\u062c\u0631\u064a\u062a\u064e \u0628\u0639\u0636 \u062d\u0633\u0627\u0628\u0627\u062a \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0639\u0628\u0627\u0631\u0629 SELECT\u060c \u0648\u0644\u0623\u063a\u0631\u0627\u0636 \u0639\u0645\u0644\u064a\u0629 \u0639\u0644\u0649 \u0628\u064a\u0627\u0646\u0627\u062a \u0646\u0645\u0648\u0630\u062c\u064a\u0629. \u0628\u0639\u062f \u0630\u0644\u0643\u060c \u0633\u062a\u062a\u062f\u0631\u0628 \u0639\u0644\u0649 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645\u0627\u062a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0648\u0627\u0644 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629.<\/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\u062e\u062f\u0627\u0645 \u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0648\u062a\u0639\u0628\u064a\u0631\u0627\u062a \u0627\u0644\u0646\u0637\u0627\u0642<\/h2>\n<p>\u0647\u0646\u0627\u0643 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u062f\u0648\u0627\u0644 \u0627\u0644\u062a\u064a \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647\u0627 \u0644\u0644\u0628\u062d\u062b \u0639\u0646 \u0642\u064a\u0645 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0648\u0645\u0639\u0627\u0644\u062c\u062a\u0647\u0627 \u0641\u064a SQL. \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u062f\u0648\u0627\u0644 SQL \u0639\u0627\u062f\u0629\u064b \u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0623\u0648 \u0645\u0639\u0627\u0644\u062c\u062a\u0647\u0627\u060c \u0648\u062a\u0639\u062a\u0645\u062f \u0627\u0644\u062f\u0648\u0627\u0644 \u0627\u0644\u0645\u062a\u0627\u062d\u0629 \u0639\u0644\u0649 \u062a\u0637\u0628\u064a\u0642 SQL. \u0645\u0639 \u0630\u0644\u0643\u060c \u062a\u062a\u064a\u062d \u0645\u0639\u0638\u0645 \u062a\u0637\u0628\u064a\u0642\u0627\u062a SQL \u0627\u0644\u0628\u062d\u062b \u0639\u0646 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0627\u0644\u062d\u0627\u0644\u064a\u064a\u0646 \u0645\u0646 \u062e\u0644\u0627\u0644 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0639\u0646 \u0642\u064a\u0645\u062a\u064e\u064a \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0627\u0644\u062d\u0627\u0644\u064a \u0648\u0627\u0644\u0648\u0642\u062a \u0627\u0644\u062d\u0627\u0644\u064a.<\/p>\n<p>\u0644\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u062a\u0627\u0631\u064a\u062e \u0627\u0644\u064a\u0648\u0645\u060c \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u064a\u0643\u0648\u0646 \u0628\u0646\u0627\u0621 \u0627\u0644\u062c\u0645\u0644\u0629 \u0642\u0635\u064a\u0631\u064b\u0627 \u0648\u064a\u062a\u0643\u0648\u0646 \u0641\u0642\u0637 \u0645\u0646 \u0639\u0628\u0627\u0631\u0629 SELECT \u0648\u0648\u0638\u064a\u0641\u0629 current_date\u060c \u0645\u062b\u0644 \u0647\u0630\u0627:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\u0633\u062a\u062e\u062f\u0627\u0645 \u0646\u0641\u0633 \u0628\u0646\u0627\u0621 \u0627\u0644\u062c\u0645\u0644\u0629\u060c \u064a\u0645\u0643\u0646\u0643 \u0627\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u0627\u0644\u0648\u0642\u062a \u0627\u0644\u062d\u0627\u0644\u064a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062f\u0627\u0644\u0629 current_time:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0625\u0630\u0627 \u0643\u0646\u062a \u062a\u0641\u0636\u0644 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0639\u0646 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0641\u064a \u0627\u0644\u0625\u062e\u0631\u0627\u062c\u060c \u0641\u0627\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u062f\u0627\u0644\u0629 current_timestamp:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0648\u0627\u0644 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0643\u0647\u0630\u0647 \u0641\u064a \u0627\u0644\u062f\u0648\u0627\u0644 \u0627\u0644\u062d\u0633\u0627\u0628\u064a\u0629\u060c \u0643\u0645\u0627 \u0641\u064a \u0627\u0644\u0642\u0633\u0645 \u0627\u0644\u0633\u0627\u0628\u0642. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0644\u0646\u0641\u062a\u0631\u0636 \u0623\u0646\u0643 \u062a\u0631\u064a\u062f \u0645\u0639\u0631\u0641\u0629 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0642\u0628\u0644 \u0623\u062d\u062f \u0639\u0634\u0631 \u064a\u0648\u0645\u064b\u0627 \u0645\u0646 \u0627\u0644\u064a\u0648\u0645. \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0646\u0641\u0633 \u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u062a\u064a \u0627\u0633\u062a\u062e\u062f\u0645\u062a\u0647\u0627 \u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u062f\u0627\u0644\u0629 current_date\u060c \u062b\u0645 \u0637\u0631\u062d 11 \u0645\u0646\u0647\u0627 \u0644\u0625\u064a\u062c\u0627\u062f \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0642\u0628\u0644 \u0623\u062d\u062f \u0639\u0634\u0631 \u064a\u0648\u0645\u064b\u0627:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0643\u0645\u0627 \u064a\u0648\u0636\u062d \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c\u060c \u0642\u0628\u0644 11 \u064a\u0648\u0645\u064b\u0627 \u0645\u0646 current_date (\u0641\u064a \u0648\u0642\u062a \u0643\u062a\u0627\u0628\u0629 \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629) \u0643\u0627\u0646 2022-02-06\u060c \u0623\u0648 6 \u0641\u0628\u0631\u0627\u064a\u0631 2022. \u062d\u0627\u0648\u0644 \u0627\u0644\u0622\u0646 \u0646\u0641\u0633 \u0627\u0644\u0639\u0645\u0644\u064a\u0629\u060c \u0648\u0644\u0643\u0646 \u0627\u0633\u062a\u0628\u062f\u0644 current_date \u0628\u0648\u0638\u064a\u0641\u0629 current_time:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u064a\u0648\u0636\u062d \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c \u0623\u0646\u0647 \u0639\u0646\u062f \u0637\u0631\u062d 11 \u0645\u0646 \u0642\u064a\u0645\u0629 \u0627\u0644\u0648\u0642\u062a \u0627\u0644\u062d\u0627\u0644\u064a\u060c \u064a\u062a\u0645 \u0637\u0631\u062d 11 \u062b\u0627\u0646\u064a\u0629. \u0627\u0644\u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u062a\u064a \u0623\u062c\u0631\u064a\u062a\u0647\u0627 \u0633\u0627\u0628\u0642\u064b\u0627 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u0629 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0627\u0644\u062d\u0627\u0644\u064a \u0641\u0633\u0631\u062a 11 \u0639\u0644\u0649 \u0623\u0646\u0647\u0627 \u0623\u064a\u0627\u0645\u060c \u0648\u0644\u064a\u0633 \u062b\u0648\u0627\u0646\u064d. \u0642\u062f \u064a\u064f\u0633\u0628\u0628 \u0647\u0630\u0627 \u0627\u0644\u062a\u0646\u0627\u0642\u0636 \u0641\u064a \u062a\u0641\u0633\u064a\u0631 \u0627\u0644\u0623\u0631\u0642\u0627\u0645 \u0627\u0631\u062a\u0628\u0627\u0643\u064b\u0627 \u0639\u0646\u062f \u0627\u0644\u0639\u0645\u0644 \u0645\u0639 \u062f\u0648\u0627\u0644 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a. \u0628\u062f\u0644\u064b\u0627 \u0645\u0646 \u0625\u062c\u0628\u0627\u0631\u0643 \u0639\u0644\u0649 \u0645\u0639\u0627\u0644\u062c\u0629 \u0642\u064a\u0645 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062d\u0633\u0627\u0628\u0627\u062a \u0643\u0647\u0630\u0647\u060c \u062a\u062a\u064a\u062d \u0644\u0643 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0623\u0646\u0638\u0645\u0629 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u062a\u0648\u0636\u064a\u062d\u064b\u0627 \u0623\u0643\u062b\u0631 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0639\u0628\u0627\u0631\u0627\u062a INTERVAL.<\/p>\n<p>\u062a\u0633\u0645\u062d \u0644\u0643 \u062a\u0639\u0628\u064a\u0631\u0627\u062a \u0627\u0644\u0641\u0627\u0635\u0644\u0629 \u0628\u062a\u062d\u062f\u064a\u062f \u062a\u0627\u0631\u064a\u062e \u0623\u0648 \u0648\u0642\u062a \u0642\u0628\u0644 \u0623\u0648 \u0628\u0639\u062f \u0641\u062a\u0631\u0629 \u0632\u0645\u0646\u064a\u0629 \u0645\u062d\u062f\u062f\u0629 \u0645\u0646 \u062a\u0639\u0628\u064a\u0631 \u062a\u0627\u0631\u064a\u062e \u0623\u0648 \u0648\u0642\u062a. \u064a\u062c\u0628 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0644\u0647\u0627 \u0627\u0644\u0634\u0643\u0644 \u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>INTERVAL value unit\r\n<\/code><\/pre>\n<\/div>\n<p>\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0644\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0628\u0639\u062f \u062e\u0645\u0633\u0629 \u0623\u064a\u0627\u0645 \u0645\u0646 \u0627\u0644\u0622\u0646\u060c \u064a\u0645\u0643\u0646\u0643 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0647\u0630\u0627 \u0627\u0644\u0645\u062b\u0627\u0644 \u064a\u0628\u062d\u062b \u0639\u0646 \u0642\u064a\u0645\u0629 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0627\u0644\u062d\u0627\u0644\u064a\u060c \u062b\u0645 \u064a\u0636\u064a\u0641 \u0625\u0644\u064a\u0647\u0627 \u062a\u0639\u0628\u064a\u0631 \u0627\u0644\u0641\u0627\u0635\u0644\u0629 INTERVAL &#039;5&#039; DAY. \u0647\u0630\u0627 \u064a\u064f\u0631\u062c\u0639 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0628\u0639\u062f 5 \u0623\u064a\u0627\u0645:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0648\u0647\u0630\u0627 \u0623\u0642\u0644 \u063a\u0645\u0648\u0636\u064b\u0627 \u0628\u0643\u062b\u064a\u0631 \u0645\u0646 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u062a\u0627\u0644\u064a\u060c \u0648\u0627\u0644\u0630\u064a \u064a\u0646\u062a\u062c \u0645\u062e\u0631\u062c\u0627\u062a \u0645\u0645\u0627\u062b\u0644\u0629\u060c \u0631\u063a\u0645 \u0623\u0646\u0647\u0627 \u0644\u064a\u0633\u062a \u0645\u062a\u0637\u0627\u0628\u0642\u0629:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0644\u0627\u062d\u0638 \u0623\u0646\u0647 \u064a\u0645\u0643\u0646\u0643 \u0637\u0631\u062d \u0641\u062a\u0631\u0627\u062a \u0632\u0645\u0646\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0623\u0648 \u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0644\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u0627\u0644\u0642\u064a\u0645 \u0642\u0628\u0644 \u0642\u064a\u0645\u0629 \u062a\u0627\u0631\u064a\u062e \u0645\u062d\u062f\u062f\u0629:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u062a\u0639\u062a\u0645\u062f \u0627\u0644\u0648\u062d\u062f\u0627\u062a \u0627\u0644\u0645\u062a\u0627\u062d\u0629 \u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0641\u064a \u0639\u0628\u0627\u0631\u0627\u062a INTERVAL \u0639\u0644\u0649 \u0646\u0638\u0627\u0645 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0630\u064a \u062a\u062e\u062a\u0627\u0631\u0647\u060c \u0639\u0644\u0649 \u0627\u0644\u0631\u063a\u0645 \u0645\u0646 \u0623\u0646 \u0645\u0639\u0638\u0645\u0647\u0627 \u0633\u064a\u0643\u0648\u0646 \u0644\u062f\u064a\u0647 \u062e\u064a\u0627\u0631\u0627\u062a \u0645\u062b\u0644 HOUR \u0648MINUTE \u0648SECOND:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\u0644\u0622\u0646 \u0628\u0639\u062f \u0623\u0646 \u062a\u0639\u0644\u0645\u062a \u0639\u0646 \u062a\u0639\u0628\u064a\u0631\u0627\u062a \u0627\u0644\u0641\u0627\u0635\u0644 \u0627\u0644\u0632\u0645\u0646\u064a \u0648\u0628\u0639\u0636 \u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a\u060c \u0627\u0633\u062a\u0645\u0631 \u0641\u064a \u0627\u0644\u062a\u062f\u0631\u0628 \u0639\u0644\u0649 \u0627\u0644\u0639\u0645\u0644 \u0645\u0639 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u062a\u064a \u0623\u062f\u062e\u0644\u062a\u0647\u0627 \u0641\u064a \u0627\u0644\u062e\u0637\u0648\u0629 \u0627\u0644\u0623\u0648\u0644\u0649.<\/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\u062e\u062f\u0627\u0645 \u0648\u0638\u0627\u0626\u0641 CAST \u0648 Aggregate \u0645\u0639 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a<\/h2>\n<p>\u062a\u0630\u0643\u0631 \u0627\u0644\u0645\u062b\u0627\u0644 \u0627\u0644\u062b\u0627\u0644\u062b \u0641\u064a \u0642\u0633\u0645 &quot;\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062d\u0633\u0627\u0628 \u0645\u0639 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a&quot;\u060c \u0639\u0646\u062f\u0645\u0627 \u0634\u063a\u0651\u0644\u062a\u064e \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u062a\u0627\u0644\u064a \u0644\u0637\u0631\u062d \u0648\u0642\u062a \u0627\u0644\u0646\u0647\u0627\u064a\u0629 \u0645\u0646 \u0648\u0642\u062a \u0627\u0644\u0628\u062f\u0627\u064a\u0629 \u0644\u062d\u0633\u0627\u0628 \u0625\u062c\u0645\u0627\u0644\u064a \u0633\u0627\u0639\u0627\u062a \u0627\u0644\u062c\u0631\u064a \u0644\u0643\u0644 \u0639\u062f\u0651\u0627\u0621 \u0641\u064a \u0643\u0644 \u0633\u0628\u0627\u0642. \u0645\u0639 \u0630\u0644\u0643\u060c \u0646\u062a\u062c \u0639\u0646 \u0627\u0644\u0645\u062e\u0631\u062c\u0627\u062a \u0639\u0645\u0648\u062f \u064a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0645\u062e\u0631\u062c\u0627\u062a \u0637\u0648\u064a\u0644\u0629 \u062c\u062f\u064b\u0627 \u062a\u062a\u0628\u0639 \u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a TIMESTAMP \u0627\u0644\u0645\u064f\u0639\u064a\u0651\u0646 \u0641\u064a \u0627\u0644\u062c\u062f\u0648\u0644:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0644\u0623\u0646\u0643 \u062a\u064f\u062c\u0631\u064a \u0639\u0645\u0644\u064a\u0629 \u0639\u0644\u0649 \u0639\u0645\u0648\u062f\u064a\u0646 \u0645\u062e\u062a\u0644\u0641\u064a\u0646 \u0641\u064a \u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a (\u064a\u062d\u062a\u0648\u064a \u0639\u0645\u0648\u062f end_time \u0639\u0644\u0649 \u0642\u064a\u0645 TIMESTAMP \u0648\u0639\u0645\u0648\u062f start_time \u0639\u0644\u0649 \u0642\u064a\u0645 TIME)\u060c \u0641\u0625\u0646 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0644\u0627 \u062a\u0639\u0631\u0641 \u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u064f\u0633\u062a\u062e\u062f\u0645 \u0639\u0646\u062f \u0637\u0628\u0627\u0639\u0629 \u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0639\u0645\u0644\u064a\u0629. \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0630\u0644\u0643\u060c \u062a\u064f\u062d\u0648\u0651\u0644 \u0627\u0644\u0642\u064a\u0645\u062a\u064a\u0646 \u0625\u0644\u0649 \u0623\u0639\u062f\u0627\u062f \u0635\u062d\u064a\u062d\u0629 \u0644\u062a\u0646\u0641\u064a\u0630 \u0627\u0644\u0639\u0645\u0644\u064a\u0629\u060c \u0645\u0645\u0627 \u064a\u0646\u062a\u062c \u0639\u0646\u0647 \u0623\u0631\u0642\u0627\u0645 \u0637\u0648\u064a\u0644\u0629 \u0641\u064a \u0639\u0645\u0648\u062f total_time.<\/p>\n<p>\u0644\u062a\u0633\u0647\u064a\u0644 \u0642\u0631\u0627\u0621\u0629 \u0647\u0630\u0647 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u062a\u0641\u0633\u064a\u0631\u0647\u0627\u060c \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u0629 CAST \u0644\u062a\u062d\u0648\u064a\u0644 \u0642\u064a\u0645 \u0627\u0644\u0623\u0639\u062f\u0627\u062f \u0627\u0644\u0635\u062d\u064a\u062d\u0629 \u0627\u0644\u0637\u0648\u064a\u0644\u0629 \u0647\u0630\u0647 \u0625\u0644\u0649 \u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a TIME. \u0644\u0644\u0642\u064a\u0627\u0645 \u0628\u0630\u0644\u0643\u060c \u0627\u0628\u062f\u0623 \u0628\u0640 CAST\u060c \u062b\u0645 \u0627\u062a\u0628\u0639\u0647\u0627 \u0645\u0628\u0627\u0634\u0631\u0629\u064b \u0628\u0642\u0648\u0633 \u0645\u0641\u062a\u0648\u062d\u060c \u062b\u0645 \u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u062a\u064a \u062a\u0631\u064a\u062f \u062a\u062d\u0648\u064a\u0644\u0647\u0627\u060c \u062b\u0645 \u0643\u0644\u0645\u0629 AS \u0648\u0646\u0648\u0639 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0630\u064a \u062a\u0631\u064a\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644 \u0625\u0644\u064a\u0647.<\/p>\n<p>\u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0627\u0644\u062a\u0627\u0644\u064a \u0645\u0645\u0627\u062b\u0644 \u0644\u0644\u0645\u062b\u0627\u0644 \u0627\u0644\u0633\u0627\u0628\u0642\u060c \u0644\u0643\u0646\u0647 \u064a\u0633\u062a\u062e\u062f\u0645 \u062f\u0627\u0644\u0629 CAST \u0644\u062a\u062d\u0648\u064a\u0644 \u0639\u0645\u0648\u062f total_time \u0625\u0644\u0649 \u0646\u0648\u0639 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0648\u0642\u062a:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0642\u0627\u0645 CAST \u0628\u062a\u062d\u0648\u064a\u0644 \u0642\u064a\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0625\u062e\u0631\u0627\u062c \u0625\u0644\u0649 TIME\u060c \u0645\u0645\u0627 \u064a\u062c\u0639\u0644\u0647 \u0633\u0647\u0644 \u0627\u0644\u0647\u0636\u0645 \u0644\u0644\u0642\u0631\u0627\u0621\u0629 \u0648\u0627\u0644\u0641\u0647\u0645.<\/p>\n<p>\u0627\u0644\u0622\u0646\u060c \u0644\u0646\u0633\u062a\u062e\u062f\u0645 \u0628\u0639\u0636 \u0627\u0644\u062f\u0648\u0627\u0644 \u0627\u0644\u062a\u062c\u0645\u064a\u0639\u064a\u0629 \u0645\u0639 \u062f\u0627\u0644\u0629 CAST \u0644\u0625\u064a\u062c\u0627\u062f \u0623\u0642\u0635\u0631 \u0648\u0623\u0637\u0648\u0644 \u0648\u0625\u062c\u0645\u0627\u0644\u064a \u0648\u0642\u062a \u0644\u0643\u0644 \u0639\u062f\u0651\u0627\u0621. \u0623\u0648\u0644\u064b\u0627\u060c \u0627\u0628\u062d\u062b \u0639\u0646 \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 (\u0623\u0648 \u0627\u0644\u0623\u0642\u0635\u0631) \u0644\u0644\u0648\u0642\u062a \u0627\u0644\u0645\u0633\u062a\u063a\u0631\u0642 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u0629 MIN. \u0648\u0644\u0644\u062a\u0648\u0636\u064a\u062d\u060c \u064a\u064f\u0646\u0635\u062d \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u0629 CAST \u0644\u062a\u062d\u0648\u064a\u0644 \u0642\u064a\u0645 \u0628\u064a\u0627\u0646\u0627\u062a TIMESTAMP \u0625\u0644\u0649 \u0642\u064a\u0645 \u0628\u064a\u0627\u0646\u0627\u062a TIME. \u064a\u064f\u0631\u062c\u0649 \u0645\u0644\u0627\u062d\u0638\u0629 \u0623\u0646\u0647 \u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062f\u0627\u0644\u062a\u064a\u0646 \u0643\u0645\u0627 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u064a\u0644\u0632\u0645 \u0648\u062c\u0648\u062f \u0632\u0648\u062c\u064a\u0646 \u0645\u0646 \u0627\u0644\u0623\u0642\u0648\u0627\u0633\u060c \u0648\u064a\u062c\u0628 \u0648\u0636\u0639 \u062d\u0633\u0627\u0628 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0633\u0627\u0639\u0627\u062a (\u0648\u0642\u062a \u0627\u0644\u0646\u0647\u0627\u064a\u0629 - \u0648\u0642\u062a \u0627\u0644\u0628\u062f\u0621) \u0641\u064a \u0623\u062d\u062f\u0647\u0645\u0627. \u0648\u0623\u062e\u064a\u0631\u064b\u0627\u060c \u0623\u0636\u0641 \u0639\u0628\u0627\u0631\u0629 GROUP BY \u0644\u062a\u0646\u0638\u064a\u0645 \u0647\u0630\u0647 \u0627\u0644\u0642\u064a\u0645 \u062d\u0633\u0628 \u0639\u0645\u0648\u062f runner_name \u0644\u0639\u0631\u0636 \u0646\u062a\u0627\u0626\u062c \u0633\u0628\u0627\u0642 \u0627\u0644\u0639\u062f\u0651\u0627\u0621:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u064a\u064f\u0638\u0647\u0631 \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c \u0623\u0642\u0635\u0631 \u0648\u0642\u062a \u0644\u0644\u0639\u062f\u0627\u0621\u060c \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629 \u0633\u062a \u062f\u0642\u0627\u0626\u0642 \u064830 \u062b\u0627\u0646\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u0642\u0644 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0628\u0648\u0644\u062a \u0648\u0633\u0628\u0639 \u062f\u0642\u0627\u0626\u0642 \u064815 \u062b\u0627\u0646\u064a\u0629 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0641\u064a\u0644\u064a\u0643\u0633.<\/p>\n<p>\u0628\u0639\u062f \u0630\u0644\u0643\u060c \u0627\u0628\u062d\u062b \u0639\u0646 \u0623\u0637\u0648\u0644 \u0645\u062f\u0629 \u062a\u0646\u0641\u064a\u0630 \u0644\u0643\u0644 \u0645\u064f\u0634\u063a\u0650\u0651\u0644. \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0646\u0641\u0633 \u0635\u064a\u063a\u0629 \u0627\u0644\u0639\u0628\u0627\u0631\u0629 \u0627\u0644\u0633\u0627\u0628\u0642\u0629\u060c \u0648\u0644\u0643\u0646 \u0647\u0630\u0647 \u0627\u0644\u0645\u0631\u0629 \u0627\u0633\u062a\u0628\u062f\u0644 MIN \u0628\u0640 MAX:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u064a\u064f\u0638\u0647\u0631 \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c \u0623\u0646 \u0623\u0637\u0648\u0644 \u0645\u062f\u0629 \u0631\u0643\u0636 \u0644\u0628\u0648\u0644\u062a \u0643\u0627\u0646\u062a \u062b\u0644\u0627\u062b \u0633\u0627\u0639\u0627\u062a \u064823 \u062f\u0642\u064a\u0642\u0629 \u0648\u0639\u0634\u0631 \u062b\u0648\u0627\u0646\u064d. \u0628\u064a\u0646\u0645\u0627 \u0643\u0627\u0646\u062a \u0623\u0637\u0648\u0644 \u0645\u062f\u0629 \u0631\u0643\u0636 \u0644\u0641\u064a\u0644\u064a\u0643\u0633 \u0623\u0631\u0628\u0639 \u0633\u0627\u0639\u0627\u062a \u0648\u062f\u0642\u064a\u0642\u062a\u064a\u0646 \u0648\u0639\u0634\u0631 \u062b\u0648\u0627\u0646\u064d.<\/p>\n<p>\u0644\u0646\u0628\u062f\u0623 \u0627\u0644\u0622\u0646 \u0628\u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0639\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u062f\u0642\u064a\u0642\u0629 \u062d\u0648\u0644 \u0625\u062c\u0645\u0627\u0644\u064a \u0633\u0627\u0639\u0627\u062a \u0627\u0644\u062c\u0631\u064a \u0644\u0643\u0644 \u0639\u062f\u0651\u0627\u0621. \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645\u060c \u0627\u062c\u0645\u0639 \u062f\u0627\u0644\u0629 SUM \u0644\u062d\u0633\u0627\u0628 \u0625\u062c\u0645\u0627\u0644\u064a \u0627\u0644\u0633\u0627\u0639\u0627\u062a \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0648\u0642\u062a \u0627\u0644\u0628\u062f\u0621 \u0648\u0648\u0642\u062a \u0627\u0644\u0646\u0647\u0627\u064a\u0629\u060c \u0648\u0627\u0633\u062a\u062e\u062f\u0645 CAST \u0644\u062a\u062d\u0648\u064a\u0644 \u0642\u064a\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0647\u0630\u0647 \u0625\u0644\u0649 \u0627\u0644\u0648\u0642\u062a. \u0644\u0627 \u062a\u0646\u0633\u064e \u0625\u0636\u0627\u0641\u0629 GROUP BY \u0644\u062a\u0646\u0638\u064a\u0645 \u0642\u064a\u0645 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0644\u0643\u0644 \u0639\u062f\u0651\u0627\u0621:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0645\u0646 \u0627\u0644\u0645\u062b\u064a\u0631 \u0644\u0644\u0627\u0647\u062a\u0645\u0627\u0645 \u0623\u0646 \u0647\u0630\u0627 \u0627\u0644\u0646\u0627\u062a\u062c \u064a\u064f\u0638\u0647\u0631 \u0623\u0646 MySQL \u064a\u064f\u0641\u0633\u0631 \u0627\u0644\u0648\u0642\u062a \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a \u0643\u0639\u062f\u062f \u0635\u062d\u064a\u062d. \u0625\u0630\u0627 \u0642\u0631\u0623\u0646\u0627 \u0647\u0630\u0647 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0643\u0623\u0648\u0642\u0627\u062a\u060c \u0641\u0633\u064a\u062a\u0645 \u062a\u0642\u0633\u064a\u0645 \u0648\u0642\u062a \u0628\u0648\u0644\u062a \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a \u0625\u0644\u0649 \u062e\u0645\u0633 \u0633\u0627\u0639\u0627\u062a \u064828 \u062f\u0642\u064a\u0642\u0629 \u064880 \u062b\u0627\u0646\u064a\u0629. \u0648\u0633\u064a\u062a\u0645 \u062a\u0642\u0633\u064a\u0645 \u0648\u0642\u062a \u0641\u064a\u0644\u064a\u0643\u0633 \u0625\u0644\u0649 \u0633\u0628\u0639 \u0633\u0627\u0639\u0627\u062a \u064861 \u062f\u0642\u064a\u0642\u0629 \u064849 \u062b\u0627\u0646\u064a\u0629. \u0643\u0645\u0627 \u0647\u0648 \u0648\u0627\u0636\u062d\u060c \u0647\u0630\u0627 \u0644\u064a\u0633 \u062a\u0642\u0633\u064a\u0645\u064b\u0627 \u0645\u0646\u0637\u0642\u064a\u064b\u0627 \u0644\u0644\u0648\u0642\u062a\u060c \u0645\u0645\u0627 \u064a\u0634\u064a\u0631 \u0625\u0644\u0649 \u0623\u0646\u0647 \u064a\u064f\u062d\u0633\u0628 \u0643\u0639\u062f\u062f \u0635\u062d\u064a\u062d \u0648\u0644\u064a\u0633 \u0643\u0648\u0642\u062a. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0625\u0630\u0627 \u062c\u0631\u0628\u062a \u0647\u0630\u0627 \u0641\u064a \u0646\u0638\u0627\u0645 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0628\u064a\u0627\u0646\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u060c \u0645\u062b\u0644 PostgreSQL\u060c \u0641\u0633\u064a\u0628\u062f\u0648 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0646\u0641\u0633\u0647 \u0645\u062e\u062a\u0644\u0641\u064b\u0627 \u0628\u0639\u0636 \u0627\u0644\u0634\u064a\u0621:<\/p>\n<div class=\"hcb_wrap\" data-no-translation=\"\" data-no-auto-translation=\"\">\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\" data-no-translation=\"\" data-no-auto-translation=\"\">\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>\u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u064a\u064f\u0641\u0633\u0651\u0631 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0641\u064a PostgreSQL \u0627\u0644\u0642\u064a\u0645 \u0643\u0623\u0648\u0642\u0627\u062a \u0648\u064a\u062d\u0633\u0628\u0647\u0627 \u0639\u0644\u0649 \u0647\u0630\u0627 \u0627\u0644\u0623\u0633\u0627\u0633\u060c \u0641\u062a\u064f\u0642\u0633\u0651\u0645 \u0646\u062a\u0627\u0626\u062c \u0641\u064a\u0644\u064a\u0643\u0633 \u0625\u0644\u0649 \u0661\u0660 \u0633\u0627\u0639\u0627\u062a \u0648\u062f\u0642\u064a\u0642\u0629 \u0648\u0627\u062d\u062f\u0629 \u0648\u0664\u0664 \u062b\u0627\u0646\u064a\u0629. \u0623\u0645\u0627 \u0628\u0648\u0644\u062a\u060c \u0641\u062a\u064f\u0642\u0633\u0651\u0645 \u0625\u0644\u0649 \u0633\u062a \u0633\u0627\u0639\u0627\u062a \u0648\u062a\u0633\u0639 \u062f\u0642\u0627\u0626\u0642 \u0648\u0662\u0660 \u062b\u0627\u0646\u064a\u0629. \u0647\u0630\u0627 \u0645\u062b\u0627\u0644 \u0639\u0644\u0649 \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u0644\u0627\u0641 \u062a\u0641\u0633\u064a\u0631 \u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0623\u0646\u0638\u0645\u0629 \u0625\u062f\u0627\u0631\u0629 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0644\u0642\u064a\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a\u060c \u062d\u062a\u0649 \u0645\u0639 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0646\u0641\u0633 \u0627\u0644\u0627\u0633\u062a\u0639\u0644\u0627\u0645 \u0648\u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a.<\/p>\n<h2 id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\">\u0646\u062a\u064a\u062c\u0629<\/h2>\n<p>\u064a\u064f\u0641\u064a\u062f \u0641\u0647\u0645 \u0643\u064a\u0641\u064a\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062a\u0648\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0623\u0648\u0642\u0627\u062a \u0641\u064a SQL \u0639\u0646\u062f \u0627\u0644\u0628\u062d\u062b \u0639\u0646 \u0646\u062a\u0627\u0626\u062c \u0645\u064f\u062d\u062f\u062f\u0629\u060c \u0645\u062b\u0644 \u0627\u0644\u062f\u0642\u0627\u0626\u0642 \u0648\u0627\u0644\u062b\u0648\u0627\u0646\u064a \u0648\u0627\u0644\u0633\u0627\u0639\u0627\u062a \u0648\u0627\u0644\u0623\u064a\u0627\u0645 \u0648\u0627\u0644\u0623\u0634\u0647\u0631 \u0648\u0627\u0644\u0633\u0646\u0648\u0627\u062a\u060c \u0623\u0648 \u0645\u0632\u064a\u062c \u0645\u0646\u0647\u0627. \u0628\u0627\u0644\u0625\u0636\u0627\u0641\u0629 \u0625\u0644\u0649 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\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0642\u064a\u0645 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a \u0645\u0639 \u0623\u064a \u062a\u0639\u0628\u064a\u0631 \u0631\u064a\u0627\u0636\u064a. \u062a\u0639\u0631\u0651\u0641 \u0639\u0644\u0649 \u0627\u0644\u0645\u0632\u064a\u062f \u0641\u064a \u062f\u0644\u064a\u0644\u0646\u0627 \u062d\u0648\u0644 \u0627\u0644\u062a\u0639\u0628\u064a\u0631\u0627\u062a \u0627\u0644\u0631\u064a\u0627\u0636\u064a\u0629 \u0648\u062f\u0648\u0627\u0644 \u0627\u0644\u062c\u0645\u0639\u060c \u0648\u062c\u0631\u0651\u0628\u0647\u0627 \u0641\u064a \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0628\u062d\u062b \u0639\u0646 \u0627\u0644\u062a\u0627\u0631\u064a\u062e \u0648\u0627\u0644\u0648\u0642\u062a.<\/p>","protected":false},"excerpt":{"rendered":"\u0645\u0642\u062f\u0645\u0629 \u0639\u0646\u062f \u0627\u0644\u0639\u0645\u0644 \u0645\u0639 \u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a 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