{"id":81454,"date":"2024-10-25T20:40:55","date_gmt":"2024-10-25T17:10:55","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/"},"modified":"2024-10-25T20:40:55","modified_gmt":"2024-10-25T17:10:55","slug":"using-ctes-for-sql-data-analysis-4h56","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/","title":{"rendered":"\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc SQL"},"content":{"rendered":"<p>Summarize this content to 400 words in Persian Lang Common Table Expressions (CTEs) \u06cc\u06a9 \u0648\u06cc\u0698\u06af\u06cc \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u062f\u0631 SQL \u0627\u0633\u062a \u06a9\u0647 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u0648 \u0633\u0627\u062e\u062a\u0627\u0631 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0648 \u062a\u0641\u0633\u06cc\u0631 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f. CTE\u0647\u0627 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u062a\u0628\u062f\u06cc\u0644 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0686\u0646\u062f \u0645\u0631\u062d\u0644\u0647\u200c\u0627\u06cc \u0628\u0647 \u0642\u0637\u0639\u0627\u062a \u0633\u0627\u062f\u0647\u200c\u062a\u0631 \u0648 \u0645\u062f\u0648\u0644\u0627\u0631 \u0645\u0641\u06cc\u062f \u0647\u0633\u062a\u0646\u062f \u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u062a\u0645\u06cc\u0632\u062a\u0631 \u0628\u0631\u0627\u06cc \u0633\u0648\u0627\u0644\u0627\u062a \u0641\u0631\u0639\u06cc \u0633\u0646\u062a\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f.<\/p>\n<p>  CTE \u0686\u06cc\u0633\u062a\u061f<\/p>\n<p>\u06cc\u06a9 CTE \u06cc\u06a9 \u0645\u062c\u0645\u0648\u0639\u0647 \u0646\u062a\u0627\u06cc\u062c \u0645\u0648\u0642\u062a\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0634\u0645\u0627 \u062f\u0631 \u06cc\u06a9 \u0639\u0628\u0627\u0631\u062a WITH \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f \u0648 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u06a9\u0648\u0626\u0631\u06cc \u0627\u0635\u0644\u06cc \u0632\u06cc\u0631 \u0628\u0647 \u0622\u0646 \u0627\u0631\u062c\u0627\u0639 \u062f\u0647\u06cc\u062f. \u0628\u0631\u062e\u0644\u0627\u0641 \u067e\u0631\u0633\u0634\u200c\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u0633\u0646\u062a\u06cc\u060c CTE\u200c\u0647\u0627 \u0627\u063a\u0644\u0628 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0647\u0633\u062a\u0646\u062f\u060c \u0632\u06cc\u0631\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f \u0646\u0627\u0645\u06cc \u0631\u0627 \u0628\u0647 \u0645\u062c\u0645\u0648\u0639\u0647 \u0646\u062a\u0627\u06cc\u062c \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f \u0648 \u062f\u0631\u06a9 \u067e\u0631\u0633\u0634\u200c\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0646\u062d\u0648 \u0627\u0635\u0644\u06cc \u0627\u06cc\u0646 \u0627\u0633\u062a:<\/p>\n<p>WITH cte_name AS (<br \/>\n    SELECT &#8230;<br \/>\n)<br \/>\nSELECT &#8230;<br \/>\nFROM cte_name;<\/p>\n<p>  \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE<\/p>\n<p>\u062e\u0648\u0627\u0646\u0627\u06cc\u06cc: CTE \u0647\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u0646\u062f \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0628\u062e\u0634 \u0647\u0627\u06cc \u0645\u0646\u0637\u0642\u06cc \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0647\u06cc\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0648 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0622\u0646\u0647\u0627 \u0631\u0627 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f. \u0628\u0647\u200c\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u0647\u200c\u062c\u0627\u06cc \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u0686\u0646\u062f\u06cc\u0646 \u0632\u06cc\u0631\u067e\u0631\u0633 \u0648 \u062c\u0648 \u062f\u0631 \u0639\u0628\u0627\u0631\u062a FROM\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 CTE \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u062f \u0648 \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0647\u0631 \u0628\u062e\u0634 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0686\u0647 \u06a9\u0627\u0631\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u062f\u0647\u062f.<br \/>\n\u0639\u0645\u0644\u06a9\u0631\u062f: CTE \u0647\u0627 \u0627\u063a\u0644\u0628 \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u062f\u0631\u0648\u0646 \u062e\u0637\u06cc \u0647\u0633\u062a\u0646\u062f \u0632\u06cc\u0631\u0627 \u06cc\u06a9 \u0628\u0627\u0631 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f. \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u06af\u0631 CTE \u0631\u0627 \u0686\u0646\u062f\u06cc\u0646 \u0628\u0627\u0631 \u062f\u0631 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u062e\u0648\u062f \u0627\u0631\u062c\u0627\u0639 \u062f\u0647\u06cc\u062f\u060c \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u062c\u062f\u062f \u0622\u0646 \u062f\u0631 \u0647\u0631 \u0628\u0627\u0631 \u0646\u06cc\u0633\u062a.<br \/>\n\u0645\u0627\u0698\u0648\u0644\u0627\u0631\u06cc\u062a: \u0647\u0646\u06af\u0627\u0645 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0627 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u067e\u06cc\u0686\u06cc\u062f\u0647 &#8211; \u0645\u0627\u0646\u0646\u062f \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0645\u062a\u062d\u0631\u06a9\u060c \u0645\u062c\u0645\u0648\u0639 \u062a\u062c\u0645\u0639\u06cc\u060c \u06cc\u0627 \u067e\u06cc\u0648\u0646\u062f\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 &#8211; CTE \u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0634\u06a9\u0644 \u0631\u0627 \u0628\u0647 \u0645\u0631\u0627\u062d\u0644 \u0642\u0627\u0628\u0644 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0647\u062f\u0641 \u0645\u0634\u062e\u0635\u06cc \u062f\u0627\u0631\u0646\u062f. \u0627\u06cc\u0646 \u0645\u062f\u0648\u0644\u0627\u0631 \u0628\u0648\u062f\u0646 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u06cc\u0627 \u06af\u0633\u062a\u0631\u0634 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0631\u0627 \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>  \u0645\u062b\u0627\u0644: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627<\/p>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0641\u0631\u0648\u0634 \u0631\u0627 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u06a9\u0646\u06cc\u062f \u0648 \u062f\u0631\u0622\u0645\u062f \u0645\u0627\u0647\u0627\u0646\u0647 \u0631\u0627 \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u0645\u062c\u0645\u0648\u0639 \u0627\u0646\u0628\u0627\u0634\u062a\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f. \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE \u0641\u0631\u0622\u06cc\u0646\u062f \u0631\u0627 \u0633\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<p>WITH monthly_sales AS (<br \/>\n    SELECT<br \/>\n        DATE_TRUNC(&#8216;month&#8217;, sale_date) AS sale_month,<br \/>\n        SUM(amount) AS total_sales<br \/>\n    FROM sales<br \/>\n    GROUP BY sale_month<br \/>\n)<br \/>\nSELECT<br \/>\n    sale_month,<br \/>\n    total_sales,<br \/>\n    SUM(total_sales) OVER (ORDER BY sale_month) AS cumulative_sales<br \/>\nFROM monthly_sales;<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c monthly_sales CTE\u060c \u0641\u0631\u0648\u0634 \u062f\u0631 \u0647\u0631 \u0645\u0627\u0647 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062c\u0645\u0648\u0639\u0647 \u0646\u062a\u0627\u06cc\u062c \u0631\u0627 \u062f\u0631 \u062c\u0633\u062a\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0641\u0631\u0648\u0634 \u062a\u062c\u0645\u0639\u06cc \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u062a\u06a9\u0631\u0627\u0631 \u06a9\u062f \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0648\u0636\u0648\u062d \u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>  Refactoring \u0633\u0648\u0627\u0644\u0627\u062a \u0641\u0631\u0639\u06cc \u0628\u0627 CTE<\/p>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0628\u0627 SQL \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u060c \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0637\u0648\u0644\u0627\u0646\u06cc \u0648 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0634\u0648\u0646\u062f \u0648 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0647\u0631 \u0642\u0633\u0645\u062a \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0631\u0627 \u062f\u0634\u0648\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f. CTE \u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u062a WITH\u060c \u0631\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0627\u06cc\u0646 \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f \u06a9\u0647 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0641\u0631\u0639\u06cc \u0631\u0627 \u0642\u0628\u0644 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0627\u0635\u0644\u06cc \u0627\u0639\u0644\u0627\u0645 \u06a9\u0646\u06cc\u062f. \u0628\u0647 \u062c\u0627\u06cc \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u062f\u0631 \u062f\u0627\u062e\u0644 \u06cc\u06a9 \u062f\u0633\u062a\u0648\u0631 FROM\u060c \u06cc\u06a9 CTE \u0645\u0627\u0646\u0646\u062f \u0647\u0631 \u062c\u062f\u0648\u0644 \u062f\u06cc\u06af\u0631\u06cc \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u0648 \u0627\u0631\u062c\u0627\u0639 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u06cc\u06a9 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u06a9\u0647 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0627\u0632 \u06cc\u06a9 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0641\u0631\u0639\u06cc \u062f\u0631 \u0639\u0628\u0627\u0631\u062a FROM \u0628\u0631\u0627\u06cc \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0645\u0633\u0627\u0628\u0642\u0627\u062a \u0628\u0627 10 \u0647\u062f\u0641 \u06cc\u0627 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 CTE \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0634\u0648\u062f:<\/p>\n<p>WITH high_scoring_matches AS (<br \/>\n    SELECT<br \/>\n        m.id, m.country_id<br \/>\n    FROM matches AS m<br \/>\n    WHERE (m.home_goal + m.away_goal) &gt;= 10<br \/>\n)<br \/>\nSELECT<br \/>\n    c.name,<br \/>\n    COUNT(hsm.id) AS high_scoring_matches_count<br \/>\nFROM high_scoring_matches AS hsm<br \/>\nJOIN country AS c ON hsm.country_id = c.id<br \/>\nGROUP BY c.name;<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u067e\u0631\u0633\u200c\u0648\u062c\u0648\u06cc \u0628\u0627\u0632\u0633\u0627\u0632\u06cc\u200c\u0634\u062f\u0647\u060c CTE high_scoring_matches \u0645\u0646\u0637\u0642 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0645\u0633\u0627\u0628\u0642\u0627\u062a \u0628\u0627 \u062a\u0639\u062f\u0627\u062f \u0647\u062f\u0641 \u0628\u0627\u0644\u0627 \u0631\u0627 \u062c\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u067e\u0631\u0633\u200c\u0648\u062c\u0648 \u0627\u0635\u0644\u06cc \u0631\u0627 \u0633\u0627\u062f\u0647\u200c\u062a\u0631 \u0648 \u0645\u062a\u0645\u0631\u06a9\u0632\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<p>  \u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE<\/p>\n<p>\u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0628\u0627\u0632\u06af\u0634\u062a\u06cc: CTE \u0647\u0627 \u0627\u0632 \u0628\u0627\u0632\u06af\u0634\u062a \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u0646\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0627\u0628\u0632\u0627\u0631\u06cc \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u062c\u0633\u062a \u0648 \u062c\u0648\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0633\u0644\u0633\u0644\u0647 \u0645\u0631\u0627\u062a\u0628\u06cc \u0645\u0627\u0646\u0646\u062f \u0646\u0645\u0648\u062f\u0627\u0631\u0647\u0627\u06cc \u0633\u0627\u0632\u0645\u0627\u0646\u06cc \u06cc\u0627 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0631\u062e\u062a\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f.<br \/>\n\u0634\u06a9\u0633\u062a\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647: \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0627 \u0644\u0627\u06cc\u0647 \u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f \u0641\u06cc\u0644\u062a\u0631\u060c \u062a\u062c\u0645\u0639 \u0648 \u062a\u0628\u062f\u06cc\u0644 \u0633\u0631\u0648\u06a9\u0627\u0631 \u062f\u0627\u0631\u06cc\u062f\u060c CTE \u0647\u0627 \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646\u062f\u0647\u06cc \u0648\u0627\u0636\u062d \u0627\u06cc\u0646 \u0645\u0631\u0627\u062d\u0644 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u0646\u062f.<br \/>\n\u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u0648 \u062a\u0628\u062f\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627: CTE \u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u067e\u06cc\u0634 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 (\u0645\u0627\u0646\u0646\u062f \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0648\u0631\u0648\u062f\u06cc \u0647\u0627\u06cc \u0646\u0627\u0645\u0639\u062a\u0628\u0631) \u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062c\u0627\u0645 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0628\u06cc\u0634\u062a\u0631 \u06a9\u0645\u06a9 \u06a9\u0646\u0646\u062f.<\/p>\n<p>  \u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<\/p>\n<p>CTE \u0647\u0627 \u0627\u0628\u0632\u0627\u0631\u06cc \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u062a\u062d\u0644\u06cc\u0644\u06af\u0631\u0627\u0646 \u062f\u0627\u062f\u0647 \u0648 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0647\u0633\u062a\u0646\u062f \u0648 \u0631\u0627\u0647\u06cc \u062a\u0645\u06cc\u0632\u060c \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u0648 \u0642\u0627\u0628\u0644 \u0641\u0647\u0645 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 SQL \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f. \u0622\u0646\u0647\u0627 \u062a\u0639\u0627\u062f\u0644\u06cc \u0628\u06cc\u0646 \u0633\u0627\u062f\u06af\u06cc \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u0646\u062f \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 SQL \u0631\u0627 \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<p>Common Table Expressions (CTEs) \u06cc\u06a9 \u0648\u06cc\u0698\u06af\u06cc \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u062f\u0631 SQL \u0627\u0633\u062a \u06a9\u0647 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u0648 \u0633\u0627\u062e\u062a\u0627\u0631 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0648 \u062a\u0641\u0633\u06cc\u0631 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f. CTE\u0647\u0627 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u062a\u0628\u062f\u06cc\u0644 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0686\u0646\u062f \u0645\u0631\u062d\u0644\u0647\u200c\u0627\u06cc \u0628\u0647 \u0642\u0637\u0639\u0627\u062a \u0633\u0627\u062f\u0647\u200c\u062a\u0631 \u0648 \u0645\u062f\u0648\u0644\u0627\u0631 \u0645\u0641\u06cc\u062f \u0647\u0633\u062a\u0646\u062f \u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u062a\u0645\u06cc\u0632\u062a\u0631 \u0628\u0631\u0627\u06cc \u0633\u0648\u0627\u0644\u0627\u062a \u0641\u0631\u0639\u06cc \u0633\u0646\u062a\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/#CTE_%DA%86%DB%8C%D8%B3%D8%AA%D8%9F\" >CTE \u0686\u06cc\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/#%D9%85%D8%B2%D8%A7%DB%8C%D8%A7%DB%8C_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_CTE\" >\u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/#%D9%85%D8%AB%D8%A7%D9%84_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_CTE_%D8%A8%D8%B1%D8%A7%DB%8C_%D8%AA%D8%AC%D8%B2%DB%8C%D9%87_%D9%88_%D8%AA%D8%AD%D9%84%DB%8C%D9%84_%D8%AF%D8%A7%D8%AF%D9%87_%D9%87%D8%A7\" >\u0645\u062b\u0627\u0644: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/#Refactoring_%D8%B3%D9%88%D8%A7%D9%84%D8%A7%D8%AA_%D9%81%D8%B1%D8%B9%DB%8C_%D8%A8%D8%A7_CTE\" >Refactoring \u0633\u0648\u0627\u0644\u0627\u062a \u0641\u0631\u0639\u06cc \u0628\u0627 CTE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/#%D8%B2%D9%85%D8%A7%D9%86_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_CTE\" >\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/using-ctes-for-sql-data-analysis-4h56\/#%D8%A7%D9%81%DA%A9%D8%A7%D8%B1_%D9%86%D9%87%D8%A7%DB%8C%DB%8C\" >\u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"CTE_%DA%86%DB%8C%D8%B3%D8%AA%D8%9F\"><\/span>\n<p>  CTE \u0686\u06cc\u0633\u062a\u061f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06cc\u06a9 CTE \u06cc\u06a9 \u0645\u062c\u0645\u0648\u0639\u0647 \u0646\u062a\u0627\u06cc\u062c \u0645\u0648\u0642\u062a\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0634\u0645\u0627 \u062f\u0631 \u06cc\u06a9 \u0639\u0628\u0627\u0631\u062a WITH \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f \u0648 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u06a9\u0648\u0626\u0631\u06cc \u0627\u0635\u0644\u06cc \u0632\u06cc\u0631 \u0628\u0647 \u0622\u0646 \u0627\u0631\u062c\u0627\u0639 \u062f\u0647\u06cc\u062f. \u0628\u0631\u062e\u0644\u0627\u0641 \u067e\u0631\u0633\u0634\u200c\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u0633\u0646\u062a\u06cc\u060c CTE\u200c\u0647\u0627 \u0627\u063a\u0644\u0628 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0647\u0633\u062a\u0646\u062f\u060c \u0632\u06cc\u0631\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f \u0646\u0627\u0645\u06cc \u0631\u0627 \u0628\u0647 \u0645\u062c\u0645\u0648\u0639\u0647 \u0646\u062a\u0627\u06cc\u062c \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f \u0648 \u062f\u0631\u06a9 \u067e\u0631\u0633\u0634\u200c\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0646\u062d\u0648 \u0627\u0635\u0644\u06cc \u0627\u06cc\u0646 \u0627\u0633\u062a:\n<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>WITH cte_name AS (\n    SELECT ...\n)\nSELECT ...\nFROM cte_name;\n\n<\/code><\/pre>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D9%85%D8%B2%D8%A7%DB%8C%D8%A7%DB%8C_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_CTE\"><\/span>\n<p>  \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\n<p>\u062e\u0648\u0627\u0646\u0627\u06cc\u06cc: CTE \u0647\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u0646\u062f \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0628\u062e\u0634 \u0647\u0627\u06cc \u0645\u0646\u0637\u0642\u06cc \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0647\u06cc\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0648 \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0622\u0646\u0647\u0627 \u0631\u0627 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f. \u0628\u0647\u200c\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u0647\u200c\u062c\u0627\u06cc \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u0686\u0646\u062f\u06cc\u0646 \u0632\u06cc\u0631\u067e\u0631\u0633 \u0648 \u062c\u0648 \u062f\u0631 \u0639\u0628\u0627\u0631\u062a FROM\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 CTE \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u062f \u0648 \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0647\u0631 \u0628\u062e\u0634 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0686\u0647 \u06a9\u0627\u0631\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u062f\u0647\u062f. <\/p>\n<\/li>\n<li>\n<p>\u0639\u0645\u0644\u06a9\u0631\u062f: CTE \u0647\u0627 \u0627\u063a\u0644\u0628 \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u062f\u0631\u0648\u0646 \u062e\u0637\u06cc \u0647\u0633\u062a\u0646\u062f \u0632\u06cc\u0631\u0627 \u06cc\u06a9 \u0628\u0627\u0631 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f. \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u06af\u0631 CTE \u0631\u0627 \u0686\u0646\u062f\u06cc\u0646 \u0628\u0627\u0631 \u062f\u0631 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u062e\u0648\u062f \u0627\u0631\u062c\u0627\u0639 \u062f\u0647\u06cc\u062f\u060c \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u062c\u062f\u062f \u0622\u0646 \u062f\u0631 \u0647\u0631 \u0628\u0627\u0631 \u0646\u06cc\u0633\u062a.<\/p>\n<\/li>\n<li>\n<p>\u0645\u0627\u0698\u0648\u0644\u0627\u0631\u06cc\u062a: \u0647\u0646\u06af\u0627\u0645 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0627 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u067e\u06cc\u0686\u06cc\u062f\u0647 &#8211; \u0645\u0627\u0646\u0646\u062f \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0645\u062a\u062d\u0631\u06a9\u060c \u0645\u062c\u0645\u0648\u0639 \u062a\u062c\u0645\u0639\u06cc\u060c \u06cc\u0627 \u067e\u06cc\u0648\u0646\u062f\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 &#8211; CTE \u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0634\u06a9\u0644 \u0631\u0627 \u0628\u0647 \u0645\u0631\u0627\u062d\u0644 \u0642\u0627\u0628\u0644 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0647\u062f\u0641 \u0645\u0634\u062e\u0635\u06cc \u062f\u0627\u0631\u0646\u062f. \u0627\u06cc\u0646 \u0645\u062f\u0648\u0644\u0627\u0631 \u0628\u0648\u062f\u0646 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u06cc\u0627 \u06af\u0633\u062a\u0631\u0634 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0631\u0627 \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%D9%85%D8%AB%D8%A7%D9%84_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_CTE_%D8%A8%D8%B1%D8%A7%DB%8C_%D8%AA%D8%AC%D8%B2%DB%8C%D9%87_%D9%88_%D8%AA%D8%AD%D9%84%DB%8C%D9%84_%D8%AF%D8%A7%D8%AF%D9%87_%D9%87%D8%A7\"><\/span>\n<p>  \u0645\u062b\u0627\u0644: \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0641\u0631\u0648\u0634 \u0631\u0627 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u06a9\u0646\u06cc\u062f \u0648 \u062f\u0631\u0622\u0645\u062f \u0645\u0627\u0647\u0627\u0646\u0647 \u0631\u0627 \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u0645\u062c\u0645\u0648\u0639 \u0627\u0646\u0628\u0627\u0634\u062a\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f. \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE \u0641\u0631\u0622\u06cc\u0646\u062f \u0631\u0627 \u0633\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f:\n<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>WITH monthly_sales AS (\n    SELECT \n        DATE_TRUNC('month', sale_date) AS sale_month,\n        SUM(amount) AS total_sales\n    FROM sales\n    GROUP BY sale_month\n)\nSELECT \n    sale_month,\n    total_sales,\n    SUM(total_sales) OVER (ORDER BY sale_month) AS cumulative_sales\nFROM monthly_sales;\n\n<\/code><\/pre>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c monthly_sales CTE\u060c \u0641\u0631\u0648\u0634 \u062f\u0631 \u0647\u0631 \u0645\u0627\u0647 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062c\u0645\u0648\u0639\u0647 \u0646\u062a\u0627\u06cc\u062c \u0631\u0627 \u062f\u0631 \u062c\u0633\u062a\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0641\u0631\u0648\u0634 \u062a\u062c\u0645\u0639\u06cc \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u062a\u06a9\u0631\u0627\u0631 \u06a9\u062f \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0648\u0636\u0648\u062d \u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Refactoring_%D8%B3%D9%88%D8%A7%D9%84%D8%A7%D8%AA_%D9%81%D8%B1%D8%B9%DB%8C_%D8%A8%D8%A7_CTE\"><\/span>\n<p>  Refactoring \u0633\u0648\u0627\u0644\u0627\u062a \u0641\u0631\u0639\u06cc \u0628\u0627 CTE<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0628\u0627 SQL \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u060c \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0637\u0648\u0644\u0627\u0646\u06cc \u0648 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0634\u0648\u0646\u062f \u0648 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0647\u0631 \u0642\u0633\u0645\u062a \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0631\u0627 \u062f\u0634\u0648\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f. CTE \u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u0628\u0627\u0631\u062a WITH\u060c \u0631\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0627\u06cc\u0646 \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f \u06a9\u0647 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0641\u0631\u0639\u06cc \u0631\u0627 \u0642\u0628\u0644 \u0627\u0632 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0627\u0635\u0644\u06cc \u0627\u0639\u0644\u0627\u0645 \u06a9\u0646\u06cc\u062f. \u0628\u0647 \u062c\u0627\u06cc \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u062f\u0631 \u062f\u0627\u062e\u0644 \u06cc\u06a9 \u062f\u0633\u062a\u0648\u0631 FROM\u060c \u06cc\u06a9 CTE \u0645\u0627\u0646\u0646\u062f \u0647\u0631 \u062c\u062f\u0648\u0644 \u062f\u06cc\u06af\u0631\u06cc \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u0648 \u0627\u0631\u062c\u0627\u0639 \u062f\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u06cc\u06a9 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u06a9\u0647 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0627\u0632 \u06cc\u06a9 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0641\u0631\u0639\u06cc \u062f\u0631 \u0639\u0628\u0627\u0631\u062a FROM \u0628\u0631\u0627\u06cc \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0645\u0633\u0627\u0628\u0642\u0627\u062a \u0628\u0627 10 \u0647\u062f\u0641 \u06cc\u0627 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 CTE \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0634\u0648\u062f:\n<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>WITH high_scoring_matches AS (\n    SELECT \n        m.id, m.country_id\n    FROM matches AS m\n    WHERE (m.home_goal + m.away_goal) &gt;= 10\n)\nSELECT \n    c.name, \n    COUNT(hsm.id) AS high_scoring_matches_count\nFROM high_scoring_matches AS hsm\nJOIN country AS c ON hsm.country_id = c.id\nGROUP BY c.name;\n\n<\/code><\/pre>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u067e\u0631\u0633\u200c\u0648\u062c\u0648\u06cc \u0628\u0627\u0632\u0633\u0627\u0632\u06cc\u200c\u0634\u062f\u0647\u060c CTE high_scoring_matches \u0645\u0646\u0637\u0642 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0645\u0633\u0627\u0628\u0642\u0627\u062a \u0628\u0627 \u062a\u0639\u062f\u0627\u062f \u0647\u062f\u0641 \u0628\u0627\u0644\u0627 \u0631\u0627 \u062c\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u067e\u0631\u0633\u200c\u0648\u062c\u0648 \u0627\u0635\u0644\u06cc \u0631\u0627 \u0633\u0627\u062f\u0647\u200c\u062a\u0631 \u0648 \u0645\u062a\u0645\u0631\u06a9\u0632\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B2%D9%85%D8%A7%D9%86_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%A7%D8%B2_CTE\"><\/span>\n<p>  \u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 CTE<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\n<p>\u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0628\u0627\u0632\u06af\u0634\u062a\u06cc: CTE \u0647\u0627 \u0627\u0632 \u0628\u0627\u0632\u06af\u0634\u062a \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u0646\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647 \u0627\u0628\u0632\u0627\u0631\u06cc \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u062c\u0633\u062a \u0648 \u062c\u0648\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0633\u0644\u0633\u0644\u0647 \u0645\u0631\u0627\u062a\u0628\u06cc \u0645\u0627\u0646\u0646\u062f \u0646\u0645\u0648\u062f\u0627\u0631\u0647\u0627\u06cc \u0633\u0627\u0632\u0645\u0627\u0646\u06cc \u06cc\u0627 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0631\u062e\u062a\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<\/li>\n<li>\n<p>\u0634\u06a9\u0633\u062a\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647: \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0628\u0627 \u0644\u0627\u06cc\u0647 \u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f \u0641\u06cc\u0644\u062a\u0631\u060c \u062a\u062c\u0645\u0639 \u0648 \u062a\u0628\u062f\u06cc\u0644 \u0633\u0631\u0648\u06a9\u0627\u0631 \u062f\u0627\u0631\u06cc\u062f\u060c CTE \u0647\u0627 \u0628\u0647 \u0633\u0627\u0632\u0645\u0627\u0646\u062f\u0647\u06cc \u0648\u0627\u0636\u062d \u0627\u06cc\u0646 \u0645\u0631\u0627\u062d\u0644 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<\/li>\n<li>\n<p>\u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u0648 \u062a\u0628\u062f\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627: CTE \u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u067e\u06cc\u0634 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 (\u0645\u0627\u0646\u0646\u062f \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0648\u0631\u0648\u062f\u06cc \u0647\u0627\u06cc \u0646\u0627\u0645\u0639\u062a\u0628\u0631) \u0642\u0628\u0644 \u0627\u0632 \u0627\u0646\u062c\u0627\u0645 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0628\u06cc\u0634\u062a\u0631 \u06a9\u0645\u06a9 \u06a9\u0646\u0646\u062f.<\/p>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A7%D9%81%DA%A9%D8%A7%D8%B1_%D9%86%D9%87%D8%A7%DB%8C%DB%8C\"><\/span>\n<p>  \u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CTE \u0647\u0627 \u0627\u0628\u0632\u0627\u0631\u06cc \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u062a\u062d\u0644\u06cc\u0644\u06af\u0631\u0627\u0646 \u062f\u0627\u062f\u0647 \u0648 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0647\u0633\u062a\u0646\u062f \u0648 \u0631\u0627\u0647\u06cc \u062a\u0645\u06cc\u0632\u060c \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u0648 \u0642\u0627\u0628\u0644 \u0641\u0647\u0645 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 SQL \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0646\u062f. \u0622\u0646\u0647\u0627 \u062a\u0639\u0627\u062f\u0644\u06cc \u0628\u06cc\u0646 \u0633\u0627\u062f\u06af\u06cc \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u0646\u062f \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 SQL \u0631\u0627 \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summarize this content to 400 words in Persian Lang Common Table Expressions (CTEs) \u06cc\u06a9 \u0648\u06cc\u0698\u06af\u06cc \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u062f\u0631 SQL \u0627\u0633\u062a \u06a9\u0647 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u0648 \u0633\u0627\u062e\u062a\u0627\u0631 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0648 \u062a\u0641\u0633\u06cc\u0631 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f. CTE\u0647\u0627 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u062a\u0628\u062f\u06cc\u0644 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0686\u0646\u062f \u0645\u0631\u062d\u0644\u0647\u200c\u0627\u06cc &hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-81454","post","type-post","status-publish","format-standard","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/81454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/comments?post=81454"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/81454\/revisions"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=81454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=81454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=81454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}