{"id":69394,"date":"2024-07-15T05:04:56","date_gmt":"2024-07-15T01:34:56","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/"},"modified":"2024-07-15T05:04:56","modified_gmt":"2024-07-15T01:34:56","slug":"aggregation-in-group-by-vs-window-functions-using-over-32ap","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/","title":{"rendered":"\u062a\u062c\u0645\u0639 \u062f\u0631 GROUP BY \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 OVER()"},"content":{"rendered":"<p>Summarize this content to 400 words in Persian Lang<br \/>\n            SQL \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0641\u0648\u0642 \u0627\u0644\u0639\u0627\u062f\u0647 \u0647\u0645\u0647 \u06a9\u0627\u0631\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a.  \u06cc\u06a9\u06cc \u0627\u0632 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u062a\u0631\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc SQL \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u062f\u0631 \u0627\u0646\u062c\u0627\u0645 \u062a\u062c\u0645\u06cc\u0639 \u0627\u0633\u062a.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u062f\u0627\u062f\u0647 \u06cc\u0627 \u0639\u0644\u0627\u0642\u0647 \u0645\u0646\u062f\u0627\u0646\u060c \u0645\u0627 \u0627\u063a\u0644\u0628 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0634\u062e\u06cc\u0635 \u0628\u06cc\u0646 \u062f\u0648 \u0631\u0648\u0634 \u06a9\u0644\u06cc\u062f\u06cc \u0628\u0631\u0627\u06cc \u062a\u062c\u0645\u06cc\u0639 \u062f\u0627\u0631\u06cc\u0645: GROUP BY \u062a\u0648\u0627\u0628\u0639 \u0628\u0646\u062f \u0648 \u067e\u0646\u062c\u0631\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 OVER() \u0639\u0628\u0627\u0631\u062a.  \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062c\u0645\u0648\u0639\u0647 \u067e\u0633\u062a\u060c \u0645\u0627 \u0639\u0645\u06cc\u0642\u0627\u064b \u0628\u0647 \u062f\u0631\u06a9 \u062a\u0641\u0627\u0648\u062a \u0647\u0627\u06cc \u0628\u06cc\u0646 \u0627\u06cc\u0646 \u062f\u0648 \u062a\u06a9\u0646\u06cc\u06a9\u060c \u0633\u0627\u062e\u062a\u0627\u0631 \u0622\u0646\u0647\u0627 \u0648 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0628\u06cc\u0646\u0634 \u062a\u062c\u0627\u0631\u06cc \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u067e\u0631\u062f\u0627\u062e\u062a.<\/p>\n<p>\u0627\u06cc\u0646 GROUP BY \u0639\u0628\u0627\u0631\u062a \u062f\u0631 SQL \u0628\u0631\u0627\u06cc \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0631\u062f\u06cc\u0641 \u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0627\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u06cc\u06a9\u0633\u0627\u0646 \u062f\u0631 \u0633\u062a\u0648\u0646 \u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0647\u0633\u062a\u0646\u062f \u062f\u0631 \u0631\u062f\u06cc\u0641 \u0647\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06cc\u0646 \u06cc\u06a9 \u0631\u0648\u0634 \u06a9\u0644\u0627\u0633\u06cc\u06a9 \u0628\u0631\u0627\u06cc \u062a\u062c\u0645\u06cc\u0639 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0633\u062a.<\/p>\n<p>  \u0646\u062d\u0648:<\/p>\n<p>SELECT<br \/>\n    column1,<br \/>\n    aggregate_function(column2)<br \/>\nFROM table<br \/>\nWHERE conditions<br \/>\nGROUP BY column1;<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0645\u062b\u0627\u0644:<\/p>\n<p>SELECT<br \/>\n    SalesPersonID,<br \/>\n    SUM(SalesAmount) AS TotalSales<br \/>\nFROM Sales<br \/>\nGROUP BY SalesPersonID;<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u06a9\u0644 \u0641\u0631\u0648\u0634 \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0628\u0627 \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0631\u062f\u06cc\u0641 \u0647\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u0634\u0648\u062f SalesPersonID \u0648 \u062c\u0645\u0639 \u0628\u0646\u062f\u06cc SalesAmount \u0628\u0631\u0627\u06cc \u0647\u0631 \u06af\u0631\u0648\u0647<\/p>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0642\u0627\u0628\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u062a\u062d\u0644\u06cc\u0644\u06cc SQL \u0631\u0627 \u0628\u0627 \u0627\u062c\u0627\u0632\u0647 \u062f\u0627\u062f\u0646 \u0628\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062f\u0631 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627\u06cc \u062c\u062f\u0648\u0644 \u06a9\u0647 \u0628\u0647 \u0631\u062f\u06cc\u0641 \u0641\u0639\u0644\u06cc \u0645\u0631\u062a\u0628\u0637 \u0647\u0633\u062a\u0646\u062f\u060c \u0628\u062f\u0648\u0646 \u06a9\u0627\u0647\u0634 \u062a\u0639\u062f\u0627\u062f \u0631\u062f\u06cc\u0641\u200c\u0647\u0627\u060c \u06af\u0633\u062a\u0631\u0634 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f.  \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u0631 \u0631\u062f\u06cc\u0641 \u0647\u0648\u06cc\u062a \u062e\u0648\u062f \u0631\u0627 \u062d\u0641\u0638 \u0645\u06cc \u06a9\u0646\u062f \u0627\u0645\u0627 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0627\u0646\u0628\u0648\u0647 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u063a\u0646\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p>  \u0646\u062d\u0648:<\/p>\n<p>SELECT<br \/>\n    column1,<br \/>\n    aggregate_function(column2) OVER (PARTITION BY column1 ORDER BY column2) AS new_column<br \/>\nFROM table;<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0645\u062b\u0627\u0644:<\/p>\n<p>SELECT<br \/>\n    SalesPersonID,<br \/>\n    SalesAmount,<br \/>\n    SUM(SalesAmount) OVER (PARTITION BY SalesPersonID) AS TotalSales<br \/>\nFROM Sales;<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0627\u06cc\u0646\u062c\u0627\u060c SUM(SalesAmount) OVER (PARTITION BY SalesPersonID) \u06a9\u0644 \u0641\u0631\u0648\u0634 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u062c\u062f\u06cc\u062f \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u062f TotalSales \u0628\u0647 \u0647\u0631 \u0631\u062f\u06cc\u0641 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0622\u0646 \u0641\u0631\u0648\u0634\u0646\u062f\u0647.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0633\u062a\u0648\u0631 \u062a\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0631\u0627 \u0628\u0634\u06a9\u0646\u06cc\u0645: FUNCTION() OVER (PARTITION BY column1 ORDER BY column2).<\/p>\n<p>  1. FUNCTION()<\/p>\n<p>\u0647\u0631 \u062a\u0627\u0628\u0639 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f SQL aggregate (SUM\u060c AVG\u060c COUNT\u060c MIN\u060c MAX) \u06cc\u0627 \u062a\u0648\u0627\u0628\u0639 \u0648\u06cc\u0698\u0647 \u067e\u0646\u062c\u0631\u0647 (ROW_NUMBER\u060c RANK\u060c DENSE_RANK\u060c LAG\u060c LEAD\u060c FIRST_VALUE\u060c LAST_VALUE).<\/p>\n<p>  2. OVER()<\/p>\n<p>\u067e\u0646\u062c\u0631\u0647 \u0627\u06cc \u0631\u0627 \u06a9\u0647 \u062a\u0627\u0628\u0639 \u0631\u0648\u06cc \u0622\u0646 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>  3. \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u062a\u0648\u0633\u0637 \u0633\u062a\u0648\u0646 1<\/p>\n<p>\u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0647 \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u062a\u0642\u0633\u06cc\u0645 \u0645\u06cc \u06a9\u0646\u062f.  \u062a\u0648\u0627\u0628\u0639 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0633\u062a\u0642\u0644 \u062f\u0631 \u0647\u0631 \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644:<\/p>\n<p>SELECT<br \/>\n    SalesPersonID,<br \/>\n    SalesAmount,<br \/>\n    SUM(SalesAmount) OVER (PARTITION BY SalesPersonID) AS TotalSales<br \/>\nFROM Sales;<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u0627\u06cc\u0646\u062c\u0627\u060c PARTITION BY SalesPersonID \u06cc\u0639\u0646\u06cc \u06a9\u0647 SUM(SalesAmount) \u0628\u0631\u0627\u06cc \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0628\u0647 \u0637\u0648\u0631 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u0634\u0648\u062f \u0648 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u0641\u0631\u0648\u0634 \u06a9\u0644 \u0628\u062f\u0648\u0646 \u06a9\u0627\u0647\u0634 \u0631\u062f\u06cc\u0641 \u0647\u0627 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>  4. \u0633\u0641\u0627\u0631\u0634 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0633\u062a\u0648\u06462<\/p>\n<p>\u0631\u062f\u06cc\u0641 \u0647\u0627 \u0631\u0627 \u062f\u0631 \u0647\u0631 \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u0645\u0631\u062a\u0628 \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u06cc\u0646 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc\u060c \u0645\u062c\u0645\u0648\u0639 \u062f\u0631 \u062d\u0627\u0644 \u0627\u062c\u0631\u0627\u060c \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0633\u0631\u06cc \u0632\u0645\u0627\u0646\u06cc \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/p>\n<p>\u0645\u062b\u0627\u0644:<\/p>\n<p>with table_sum as<br \/>\n(select<br \/>\nSalesPersonID,<br \/>\nsum(SalesAmount) as total_sales<br \/>\nfrom Sales group by 1) <\/p>\n<p>select<br \/>\nSalesPersonId<br \/>\n, Rank() over( order by total_sales desc) as ranking<br \/>\nfrom table_sum;<\/p>\n<p>    \u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/p>\n<p>    \u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c ORDER BY total_sales \u062a\u0636\u0645\u06cc\u0646 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0641\u0631\u0648\u0634 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u062c\u0645\u0648\u0639 \u0645\u0631\u062a\u0628 \u0634\u062f\u0647 \u0627\u0633\u062a \u062a\u0627 \u0641\u0631\u0648\u0634 \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc \u0634\u0648\u062f.<\/p>\n<p>  \u06a9\u0627\u0647\u0634 \u062f\u0627\u062f\u0647 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u062d\u0641\u0638 \u062f\u0627\u062f\u0647<\/p>\n<p>\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0628\u0631 \u0627\u0633\u0627\u0633: \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0627 \u06a9\u0627\u0647\u0634 \u062a\u0639\u062f\u0627\u062f \u0631\u062f\u06cc\u0641 \u0647\u0627 \u062c\u0645\u0639 \u0645\u06cc \u06a9\u0646\u062f\u060c \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u06a9\u0631\u062f\u0646 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u06cc\u062f\u0647 \u0622\u0644 \u0627\u0633\u062a.<\/p>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647: \u062a\u0645\u0627\u0645 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627 \u0631\u0627 \u062d\u0641\u0638 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0628\u0631\u0627\u06cc \u062a\u062d\u0644\u06cc\u0644\u200c\u0647\u0627\u06cc \u062f\u0642\u06cc\u0642 \u0633\u0637\u062d \u0631\u062f\u06cc\u0641 \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a.<\/p>\n<p>  \u0632\u0645\u06cc\u0646\u0647 \u0648 \u0628\u06cc\u0646\u0634<\/p>\n<p>\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0628\u0631 \u0627\u0633\u0627\u0633: \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u062e\u0644\u0627\u0635\u0647 \u0647\u0627 \u0648 \u06af\u0632\u0627\u0631\u0634 \u0647\u0627\u06cc \u0633\u0637\u062d \u0628\u0627\u0644\u0627.<\/p>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647: \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0631\u0648\u0646\u062f \u062f\u0642\u06cc\u0642\u060c \u0645\u062c\u0645\u0648\u0639 \u062f\u0631 \u062d\u0627\u0644 \u0627\u062c\u0631\u0627\u060c \u0648 \u0628\u06cc\u0646\u0634 \u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631 \u0631\u0627 \u0641\u0639\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>  \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062a\u062c\u0627\u0631\u06cc<\/p>\n<p>\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0628\u0631 \u0627\u0633\u0627\u0633: \u0628\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u0647\u0627\u06cc \u062f\u0627\u0634\u0628\u0648\u0631\u062f\u060c \u06af\u0632\u0627\u0631\u0634 \u0647\u0627\u06cc \u0641\u0635\u0644\u06cc \u0648 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0645\u0627\u0644\u06cc \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0634\u062f\u0647 \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/p>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647: \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0627\u0631\u0632\u0634 \u0637\u0648\u0644 \u0639\u0645\u0631 \u0645\u0634\u062a\u0631\u06cc\u060c \u0631\u0648\u0646\u062f \u0642\u06cc\u0645\u062a \u0633\u0647\u0627\u0645 \u0648 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u0627\u0633\u062a.<\/p>\n<p>\u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0637\u0631\u062d \u0647\u0627\u06cc \u067e\u0631\u0633 \u0648 \u062c\u0648: \u0628\u0647 \u0637\u0648\u0631 \u0645\u0646\u0638\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f EXPLAIN \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0645\u0648\u062a\u0648\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0686\u06af\u0648\u0646\u0647 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0634\u0645\u0627 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0627\u0631\u0622\u0645\u062f: \u0647\u0645\u06cc\u0634\u0647 \u0633\u062a\u0648\u0646 \u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0648 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0631\u0627 \u0627\u06cc\u0646\u062f\u06a9\u0633 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062a\u0642\u0633\u06cc\u0645 \u0628\u0646\u062f\u06cc \u0647\u0648\u0634\u0645\u0646\u062f\u0627\u0646\u0647: \u0628\u0631\u0627\u06cc \u0628\u0647\u0628\u0648\u062f \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u0628\u0646\u062f\u06cc \u062c\u062f\u0648\u0644 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0628\u0632\u0631\u06af \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f.<\/p>\n<p>\u0628\u0647 \u0637\u0648\u0631 \u062e\u0644\u0627\u0635\u0647\u060c \u0647\u0631 \u062f\u0648 GROUP BY \u0648 \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0627\u0647\u062f\u0627\u0641 \u0645\u0646\u062d\u0635\u0631 \u0628\u0647 \u0641\u0631\u062f\u06cc \u0631\u0627 \u062f\u0631 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc SQL \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u0646\u062f.  \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 GROUP BY \u0628\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u06a9\u0631\u062f\u0646 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0648 \u062a\u0648\u0644\u06cc\u062f \u06af\u0632\u0627\u0631\u0634\u200c\u0647\u0627\u06cc \u0633\u0637\u062d \u0628\u0627\u0644\u0627 \u0639\u0627\u0644\u06cc \u0627\u0633\u062a\u060c \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0628\u0627 \u062d\u0641\u0638 \u062c\u0632\u0626\u06cc\u0627\u062a \u0633\u0637\u062d \u0631\u062f\u06cc\u0641 \u0648 \u0627\u0645\u06a9\u0627\u0646 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0648\u06cc \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0637\u060c \u0628\u06cc\u0646\u0634 \u0639\u0645\u06cc\u0642\u200c\u062a\u0631\u06cc \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.<\/p>\n<p>\u0628\u0627 \u062a\u0633\u0644\u0637 \u0628\u0631 \u0647\u0631 \u062f\u0648 \u062a\u06a9\u0646\u06cc\u06a9\u060c \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u062f\u0627\u062f\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644\u06af\u0631\u0627\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u06a9\u0627\u0645\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u0646\u062f \u0648 \u0628\u06cc\u0646\u0634\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0627\u0631\u0632\u0634 \u06a9\u0633\u0628 \u0648 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u062a\u0635\u0645\u06cc\u0645 \u06af\u06cc\u0631\u06cc \u0631\u0627 \u0628\u0647\u06cc\u0646\u0647 \u0645\u06cc \u06a9\u0646\u062f.  \u062f\u0631 \u067e\u0633\u062a \u0628\u0639\u062f\u06cc\u060c \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0633\u0627\u062f\u0647 \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u0646\u0628\u0627\u0634\u062a\u0647\u200c\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0645\u0627\u0646\u0646\u062f \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f AVG\u060c MAX\u060c MIN\u060c \u0648 COUNT.<\/p>\n<p>\u0645\u0646\u062a\u0638\u0631 \u063a\u0648\u0627\u0635\u06cc \u0639\u0645\u06cc\u0642 \u062a\u0631 \u062f\u0631 \u0642\u0627\u0628\u0644\u06cc\u062a \u0647\u0627\u06cc SQL \u0628\u0627\u0634\u06cc\u062f!  \u0627\u06af\u0631 \u0627\u06cc\u0646 \u067e\u0633\u062a \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0645\u0641\u06cc\u062f \u0628\u0648\u062f\u060c \u0627\u0634\u062a\u0631\u0627\u06a9 \u06af\u0630\u0627\u0631\u06cc \u0648 \u0646\u0638\u0631 \u0631\u0627 \u062f\u0631 \u0632\u06cc\u0631 \u0641\u0631\u0627\u0645\u0648\u0634 \u0646\u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062a\u0635\u0627\u0648\u06cc\u0631 \u0627\u0632 https:\/\/www.boardinfinity.com\/blog\/window-function-in-sql\/ <\/p>\n<div data-article-id=\"1923522\" id=\"article-body\">\n<p>SQL \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0641\u0648\u0642 \u0627\u0644\u0639\u0627\u062f\u0647 \u0647\u0645\u0647 \u06a9\u0627\u0631\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a.  \u06cc\u06a9\u06cc \u0627\u0632 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u062a\u0631\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc SQL \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u062f\u0631 \u0627\u0646\u062c\u0627\u0645 \u062a\u062c\u0645\u06cc\u0639 \u0627\u0633\u062a.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u062f\u0627\u062f\u0647 \u06cc\u0627 \u0639\u0644\u0627\u0642\u0647 \u0645\u0646\u062f\u0627\u0646\u060c \u0645\u0627 \u0627\u063a\u0644\u0628 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0634\u062e\u06cc\u0635 \u0628\u06cc\u0646 \u062f\u0648 \u0631\u0648\u0634 \u06a9\u0644\u06cc\u062f\u06cc \u0628\u0631\u0627\u06cc \u062a\u062c\u0645\u06cc\u0639 \u062f\u0627\u0631\u06cc\u0645: <code>GROUP BY<\/code> \u062a\u0648\u0627\u0628\u0639 \u0628\u0646\u062f \u0648 \u067e\u0646\u062c\u0631\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>OVER()<\/code> \u0639\u0628\u0627\u0631\u062a.  \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062c\u0645\u0648\u0639\u0647 \u067e\u0633\u062a\u060c \u0645\u0627 \u0639\u0645\u06cc\u0642\u0627\u064b \u0628\u0647 \u062f\u0631\u06a9 \u062a\u0641\u0627\u0648\u062a \u0647\u0627\u06cc \u0628\u06cc\u0646 \u0627\u06cc\u0646 \u062f\u0648 \u062a\u06a9\u0646\u06cc\u06a9\u060c \u0633\u0627\u062e\u062a\u0627\u0631 \u0622\u0646\u0647\u0627 \u0648 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0628\u06cc\u0646\u0634 \u062a\u062c\u0627\u0631\u06cc \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u067e\u0631\u062f\u0627\u062e\u062a.<\/p>\n<p>\u0627\u06cc\u0646 <code>GROUP BY<\/code> \u0639\u0628\u0627\u0631\u062a \u062f\u0631 SQL \u0628\u0631\u0627\u06cc \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0631\u062f\u06cc\u0641 \u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0627\u0631\u0627\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 \u06cc\u06a9\u0633\u0627\u0646 \u062f\u0631 \u0633\u062a\u0648\u0646 \u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0647\u0633\u062a\u0646\u062f \u062f\u0631 \u0631\u062f\u06cc\u0641 \u0647\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06cc\u0646 \u06cc\u06a9 \u0631\u0648\u0634 \u06a9\u0644\u0627\u0633\u06cc\u06a9 \u0628\u0631\u0627\u06cc \u062a\u062c\u0645\u06cc\u0639 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0633\u062a.<\/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-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#%D9%86%D8%AD%D9%88\" >\u0646\u062d\u0648:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#%D9%86%D8%AD%D9%88-2\" >\u0646\u062d\u0648:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#1_FUNCTION\" >1. FUNCTION()<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#2_OVER\" >2. OVER()<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#3_%D9%BE%D8%A7%D8%B1%D8%AA%DB%8C%D8%B4%D9%86_%D8%AA%D9%88%D8%B3%D8%B7_%D8%B3%D8%AA%D9%88%D9%86_1\" >3. \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u062a\u0648\u0633\u0637 \u0633\u062a\u0648\u0646 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#4_%D8%B3%D9%81%D8%A7%D8%B1%D8%B4_%D8%A8%D8%B1_%D8%A7%D8%B3%D8%A7%D8%B3_%D8%B3%D8%AA%D9%88%D9%862\" >4. \u0633\u0641\u0627\u0631\u0634 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0633\u062a\u0648\u06462<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#%DA%A9%D8%A7%D9%87%D8%B4_%D8%AF%D8%A7%D8%AF%D9%87_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_%D8%AD%D9%81%D8%B8_%D8%AF%D8%A7%D8%AF%D9%87\" >\u06a9\u0627\u0647\u0634 \u062f\u0627\u062f\u0647 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u062d\u0641\u0638 \u062f\u0627\u062f\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#%D8%B2%D9%85%DB%8C%D9%86%D9%87_%D9%88_%D8%A8%DB%8C%D9%86%D8%B4\" >\u0632\u0645\u06cc\u0646\u0647 \u0648 \u0628\u06cc\u0646\u0634<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nabfollower.com\/blog\/aggregation-in-group-by-vs-window-functions-using-over-32ap\/#%D8%A8%D8%B1%D9%86%D8%A7%D9%85%D9%87_%D9%87%D8%A7%DB%8C_%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1%D8%AF%DB%8C_%D8%AA%D8%AC%D8%A7%D8%B1%DB%8C\" >\u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062a\u062c\u0627\u0631\u06cc<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%86%D8%AD%D9%88\"><\/span>\n<p>  \u0646\u062d\u0648:<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight sql\"><code><span class=\"k\">SELECT<\/span> \n    <span class=\"n\">column1<\/span><span class=\"p\">,<\/span>\n    <span class=\"n\">aggregate_function<\/span><span class=\"p\">(<\/span><span class=\"n\">column2<\/span><span class=\"p\">)<\/span>\n<span class=\"k\">FROM<\/span> <span class=\"k\">table<\/span>\n<span class=\"k\">WHERE<\/span> <span class=\"n\">conditions<\/span>\n<span class=\"k\">GROUP<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">column1<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0645\u062b\u0627\u0644:<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight sql\"><code><span class=\"k\">SELECT<\/span> \n    <span class=\"n\">SalesPersonID<\/span><span class=\"p\">,<\/span>\n    <span class=\"k\">SUM<\/span><span class=\"p\">(<\/span><span class=\"n\">SalesAmount<\/span><span class=\"p\">)<\/span> <span class=\"k\">AS<\/span> <span class=\"n\">TotalSales<\/span>\n<span class=\"k\">FROM<\/span> <span class=\"n\">Sales<\/span>\n<span class=\"k\">GROUP<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">SalesPersonID<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u06a9\u0644 \u0641\u0631\u0648\u0634 \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0628\u0627 \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0631\u062f\u06cc\u0641 \u0647\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u0634\u0648\u062f <code>SalesPersonID<\/code> \u0648 \u062c\u0645\u0639 \u0628\u0646\u062f\u06cc <code>SalesAmount<\/code> \u0628\u0631\u0627\u06cc \u0647\u0631 \u06af\u0631\u0648\u0647<\/p>\n<p>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0642\u0627\u0628\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u062a\u062d\u0644\u06cc\u0644\u06cc SQL \u0631\u0627 \u0628\u0627 \u0627\u062c\u0627\u0632\u0647 \u062f\u0627\u062f\u0646 \u0628\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062f\u0631 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627\u06cc \u062c\u062f\u0648\u0644 \u06a9\u0647 \u0628\u0647 \u0631\u062f\u06cc\u0641 \u0641\u0639\u0644\u06cc \u0645\u0631\u062a\u0628\u0637 \u0647\u0633\u062a\u0646\u062f\u060c \u0628\u062f\u0648\u0646 \u06a9\u0627\u0647\u0634 \u062a\u0639\u062f\u0627\u062f \u0631\u062f\u06cc\u0641\u200c\u0647\u0627\u060c \u06af\u0633\u062a\u0631\u0634 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f.  \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u0631 \u0631\u062f\u06cc\u0641 \u0647\u0648\u06cc\u062a \u062e\u0648\u062f \u0631\u0627 \u062d\u0641\u0638 \u0645\u06cc \u06a9\u0646\u062f \u0627\u0645\u0627 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0627\u0646\u0628\u0648\u0647 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u063a\u0646\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D9%86%D8%AD%D9%88-2\"><\/span>\n<p>  \u0646\u062d\u0648:<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight sql\"><code><span class=\"k\">SELECT<\/span> \n    <span class=\"n\">column1<\/span><span class=\"p\">,<\/span>\n    <span class=\"n\">aggregate_function<\/span><span class=\"p\">(<\/span><span class=\"n\">column2<\/span><span class=\"p\">)<\/span> <span class=\"n\">OVER<\/span> <span class=\"p\">(<\/span><span class=\"k\">PARTITION<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">column1<\/span> <span class=\"k\">ORDER<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">column2<\/span><span class=\"p\">)<\/span> <span class=\"k\">AS<\/span> <span class=\"n\">new_column<\/span>\n<span class=\"k\">FROM<\/span> <span class=\"k\">table<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0645\u062b\u0627\u0644:<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight sql\"><code><span class=\"k\">SELECT<\/span> \n    <span class=\"n\">SalesPersonID<\/span><span class=\"p\">,<\/span> \n    <span class=\"n\">SalesAmount<\/span><span class=\"p\">,<\/span>\n    <span class=\"k\">SUM<\/span><span class=\"p\">(<\/span><span class=\"n\">SalesAmount<\/span><span class=\"p\">)<\/span> <span class=\"n\">OVER<\/span> <span class=\"p\">(<\/span><span class=\"k\">PARTITION<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">SalesPersonID<\/span><span class=\"p\">)<\/span> <span class=\"k\">AS<\/span> <span class=\"n\">TotalSales<\/span>\n<span class=\"k\">FROM<\/span> <span class=\"n\">Sales<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0627\u06cc\u0646\u062c\u0627\u060c <code>SUM(SalesAmount) OVER (PARTITION BY SalesPersonID)<\/code> \u06a9\u0644 \u0641\u0631\u0648\u0634 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u062c\u062f\u06cc\u062f \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u062f <code>TotalSales<\/code> \u0628\u0647 \u0647\u0631 \u0631\u062f\u06cc\u0641 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0622\u0646 \u0641\u0631\u0648\u0634\u0646\u062f\u0647.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0633\u062a\u0648\u0631 \u062a\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0631\u0627 \u0628\u0634\u06a9\u0646\u06cc\u0645: <code>FUNCTION() OVER (PARTITION BY column1 ORDER BY column2)<\/code>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"1_FUNCTION\"><\/span>\n<p>  1. FUNCTION()<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0631 \u062a\u0627\u0628\u0639 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f SQL aggregate (<code>SUM<\/code>\u060c <code>AVG<\/code>\u060c <code>COUNT<\/code>\u060c <code>MIN<\/code>\u060c <code>MAX<\/code>) \u06cc\u0627 \u062a\u0648\u0627\u0628\u0639 \u0648\u06cc\u0698\u0647 \u067e\u0646\u062c\u0631\u0647 (<code>ROW_NUMBER<\/code>\u060c <code>RANK<\/code>\u060c <code>DENSE_RANK<\/code>\u060c <code>LAG<\/code>\u060c <code>LEAD<\/code>\u060c <code>FIRST_VALUE<\/code>\u060c <code>LAST_VALUE<\/code>).<\/p>\n<p><\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_OVER\"><\/span>\n<p>  2. OVER()<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u067e\u0646\u062c\u0631\u0647 \u0627\u06cc \u0631\u0627 \u06a9\u0647 \u062a\u0627\u0628\u0639 \u0631\u0648\u06cc \u0622\u0646 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_%D9%BE%D8%A7%D8%B1%D8%AA%DB%8C%D8%B4%D9%86_%D8%AA%D9%88%D8%B3%D8%B7_%D8%B3%D8%AA%D9%88%D9%86_1\"><\/span>\n<p>  3. \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u062a\u0648\u0633\u0637 \u0633\u062a\u0648\u0646 1<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0647 \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u062a\u0642\u0633\u06cc\u0645 \u0645\u06cc \u06a9\u0646\u062f.  \u062a\u0648\u0627\u0628\u0639 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0633\u062a\u0642\u0644 \u062f\u0631 \u0647\u0631 \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644:<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight sql\"><code><span class=\"k\">SELECT<\/span>\n    <span class=\"n\">SalesPersonID<\/span><span class=\"p\">,<\/span>\n    <span class=\"n\">SalesAmount<\/span><span class=\"p\">,<\/span>\n    <span class=\"k\">SUM<\/span><span class=\"p\">(<\/span><span class=\"n\">SalesAmount<\/span><span class=\"p\">)<\/span> <span class=\"n\">OVER<\/span> <span class=\"p\">(<\/span><span class=\"k\">PARTITION<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">SalesPersonID<\/span><span class=\"p\">)<\/span> <span class=\"k\">AS<\/span> <span class=\"n\">TotalSales<\/span>\n<span class=\"k\">FROM<\/span> <span class=\"n\">Sales<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/media.dev.to\/cdn-cgi\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fdaktp3nu93vviuef286q.PNG\" alt=\"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"282\" title=\"\"><\/p>\n<p>\u0627\u06cc\u0646\u062c\u0627\u060c <code>PARTITION BY SalesPersonID<\/code> \u06cc\u0639\u0646\u06cc \u06a9\u0647 <code>SUM(SalesAmount)<\/code> \u0628\u0631\u0627\u06cc \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0628\u0647 \u0637\u0648\u0631 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u0634\u0648\u062f \u0648 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u0641\u0631\u0648\u0634 \u06a9\u0644 \u0628\u062f\u0648\u0646 \u06a9\u0627\u0647\u0634 \u0631\u062f\u06cc\u0641 \u0647\u0627 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"4_%D8%B3%D9%81%D8%A7%D8%B1%D8%B4_%D8%A8%D8%B1_%D8%A7%D8%B3%D8%A7%D8%B3_%D8%B3%D8%AA%D9%88%D9%862\"><\/span>\n<p>  4. \u0633\u0641\u0627\u0631\u0634 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0633\u062a\u0648\u06462<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0631\u062f\u06cc\u0641 \u0647\u0627 \u0631\u0627 \u062f\u0631 \u0647\u0631 \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u0645\u0631\u062a\u0628 \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u06cc\u0646 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc\u060c \u0645\u062c\u0645\u0648\u0639 \u062f\u0631 \u062d\u0627\u0644 \u0627\u062c\u0631\u0627\u060c \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0633\u0631\u06cc \u0632\u0645\u0627\u0646\u06cc \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644:<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight sql\"><code><span class=\"k\">with<\/span> <span class=\"n\">table_sum<\/span> <span class=\"k\">as<\/span> \n<span class=\"p\">(<\/span><span class=\"k\">select<\/span> \n<span class=\"n\">SalesPersonID<\/span><span class=\"p\">,<\/span> \n<span class=\"k\">sum<\/span><span class=\"p\">(<\/span><span class=\"n\">SalesAmount<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"n\">total_sales<\/span> \n<span class=\"k\">from<\/span> <span class=\"n\">Sales<\/span> <span class=\"k\">group<\/span> <span class=\"k\">by<\/span> <span class=\"mi\">1<\/span><span class=\"p\">)<\/span> \n\n<span class=\"k\">select<\/span> \n<span class=\"n\">SalesPersonId<\/span>\n<span class=\"p\">,<\/span> <span class=\"n\">Rank<\/span><span class=\"p\">()<\/span> <span class=\"n\">over<\/span><span class=\"p\">(<\/span> <span class=\"k\">order<\/span> <span class=\"k\">by<\/span> <span class=\"n\">total_sales<\/span> <span class=\"k\">desc<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"n\">ranking<\/span> \n<span class=\"k\">from<\/span> <span class=\"n\">table_sum<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/media.dev.to\/cdn-cgi\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fnm7zmyqvf1lv2nkfpftw.PNG\" alt=\"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"315\" title=\"\"><\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c <code>ORDER BY total_sales<\/code> \u062a\u0636\u0645\u06cc\u0646 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0641\u0631\u0648\u0634 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u062c\u0645\u0648\u0639 \u0645\u0631\u062a\u0628 \u0634\u062f\u0647 \u0627\u0633\u062a \u062a\u0627 \u0641\u0631\u0648\u0634 \u0647\u0631 \u0641\u0631\u0648\u0634\u0646\u062f\u0647 \u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc \u0634\u0648\u062f.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%DA%A9%D8%A7%D9%87%D8%B4_%D8%AF%D8%A7%D8%AF%D9%87_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_%D8%AD%D9%81%D8%B8_%D8%AF%D8%A7%D8%AF%D9%87\"><\/span>\n<p>  \u06a9\u0627\u0647\u0634 \u062f\u0627\u062f\u0647 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u062d\u0641\u0638 \u062f\u0627\u062f\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\n<strong>\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0628\u0631 \u0627\u0633\u0627\u0633:<\/strong> \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0627 \u06a9\u0627\u0647\u0634 \u062a\u0639\u062f\u0627\u062f \u0631\u062f\u06cc\u0641 \u0647\u0627 \u062c\u0645\u0639 \u0645\u06cc \u06a9\u0646\u062f\u060c \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u06a9\u0631\u062f\u0646 \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u06cc\u062f\u0647 \u0622\u0644 \u0627\u0633\u062a.<\/li>\n<li>\n<strong>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647:<\/strong> \u062a\u0645\u0627\u0645 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627 \u0631\u0627 \u062d\u0641\u0638 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0628\u0631\u0627\u06cc \u062a\u062d\u0644\u06cc\u0644\u200c\u0647\u0627\u06cc \u062f\u0642\u06cc\u0642 \u0633\u0637\u062d \u0631\u062f\u06cc\u0641 \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a.<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/media.dev.to\/cdn-cgi\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fdxmzjp2zq0l7a34j3fej.png\" alt=\"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u062a\u0635\u0648\u06cc\u0631\" loading=\"lazy\" width=\"800\" height=\"450\" title=\"\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D8%B2%D9%85%DB%8C%D9%86%D9%87_%D9%88_%D8%A8%DB%8C%D9%86%D8%B4\"><\/span>\n<p>  \u0632\u0645\u06cc\u0646\u0647 \u0648 \u0628\u06cc\u0646\u0634<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\n<strong>\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0628\u0631 \u0627\u0633\u0627\u0633:<\/strong> \u0639\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u062e\u0644\u0627\u0635\u0647 \u0647\u0627 \u0648 \u06af\u0632\u0627\u0631\u0634 \u0647\u0627\u06cc \u0633\u0637\u062d \u0628\u0627\u0644\u0627.<\/li>\n<li>\n<strong>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647:<\/strong> \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0631\u0648\u0646\u062f \u062f\u0642\u06cc\u0642\u060c \u0645\u062c\u0645\u0648\u0639 \u062f\u0631 \u062d\u0627\u0644 \u0627\u062c\u0631\u0627\u060c \u0648 \u0628\u06cc\u0646\u0634 \u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631 \u0631\u0627 \u0641\u0639\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%D8%A8%D8%B1%D9%86%D8%A7%D9%85%D9%87_%D9%87%D8%A7%DB%8C_%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1%D8%AF%DB%8C_%D8%AA%D8%AC%D8%A7%D8%B1%DB%8C\"><\/span>\n<p>  \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062a\u062c\u0627\u0631\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\n<strong>\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0628\u0631 \u0627\u0633\u0627\u0633:<\/strong> \u0628\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u0647\u0627\u06cc \u062f\u0627\u0634\u0628\u0648\u0631\u062f\u060c \u06af\u0632\u0627\u0631\u0634 \u0647\u0627\u06cc \u0641\u0635\u0644\u06cc \u0648 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0645\u0627\u0644\u06cc \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0634\u062f\u0647 \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/li>\n<li>\n<strong>\u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647:<\/strong> \u0628\u0631\u0627\u06cc \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0627\u0631\u0632\u0634 \u0637\u0648\u0644 \u0639\u0645\u0631 \u0645\u0634\u062a\u0631\u06cc\u060c \u0631\u0648\u0646\u062f \u0642\u06cc\u0645\u062a \u0633\u0647\u0627\u0645 \u0648 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u0627\u0633\u062a.<\/li>\n<\/ul>\n<ul>\n<li>\n<strong>\u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0637\u0631\u062d \u0647\u0627\u06cc \u067e\u0631\u0633 \u0648 \u062c\u0648:<\/strong> \u0628\u0647 \u0637\u0648\u0631 \u0645\u0646\u0638\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>EXPLAIN<\/code> \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0645\u0648\u062a\u0648\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0686\u06af\u0648\u0646\u0647 \u067e\u0631\u0633 \u0648 \u062c\u0648\u0647\u0627\u06cc \u0634\u0645\u0627 \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li>\n<strong>\u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0627\u0631\u0622\u0645\u062f:<\/strong> \u0647\u0645\u06cc\u0634\u0647 \u0633\u062a\u0648\u0646 \u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0648 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0631\u0627 \u0627\u06cc\u0646\u062f\u06a9\u0633 \u06a9\u0646\u06cc\u062f.<\/li>\n<li>\n<strong>\u062a\u0642\u0633\u06cc\u0645 \u0628\u0646\u062f\u06cc \u0647\u0648\u0634\u0645\u0646\u062f\u0627\u0646\u0647:<\/strong> \u0628\u0631\u0627\u06cc \u0628\u0647\u0628\u0648\u062f \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u067e\u0627\u0631\u062a\u06cc\u0634\u0646 \u0628\u0646\u062f\u06cc \u062c\u062f\u0648\u0644 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062c\u0645\u0648\u0639\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0628\u0632\u0631\u06af \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f.<\/li>\n<\/ul>\n<p>\u0628\u0647 \u0637\u0648\u0631 \u062e\u0644\u0627\u0635\u0647\u060c \u0647\u0631 \u062f\u0648 <code>GROUP BY<\/code> \u0648 \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0627\u0647\u062f\u0627\u0641 \u0645\u0646\u062d\u0635\u0631 \u0628\u0647 \u0641\u0631\u062f\u06cc \u0631\u0627 \u062f\u0631 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc SQL \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u0646\u062f.  \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 <code>GROUP BY<\/code> \u0628\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u06a9\u0631\u062f\u0646 \u062f\u0627\u062f\u0647\u200c\u0647\u0627 \u0648 \u062a\u0648\u0644\u06cc\u062f \u06af\u0632\u0627\u0631\u0634\u200c\u0647\u0627\u06cc \u0633\u0637\u062d \u0628\u0627\u0644\u0627 \u0639\u0627\u0644\u06cc \u0627\u0633\u062a\u060c \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0628\u0627 \u062d\u0641\u0638 \u062c\u0632\u0626\u06cc\u0627\u062a \u0633\u0637\u062d \u0631\u062f\u06cc\u0641 \u0648 \u0627\u0645\u06a9\u0627\u0646 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0648\u06cc \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0631\u062f\u06cc\u0641\u200c\u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0637\u060c \u0628\u06cc\u0646\u0634 \u0639\u0645\u06cc\u0642\u200c\u062a\u0631\u06cc \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.<\/p>\n<p>\u0628\u0627 \u062a\u0633\u0644\u0637 \u0628\u0631 \u0647\u0631 \u062f\u0648 \u062a\u06a9\u0646\u06cc\u06a9\u060c \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u062f\u0627\u062f\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644\u06af\u0631\u0627\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u06a9\u0627\u0645\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u0646\u062f \u0648 \u0628\u06cc\u0646\u0634\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0627\u0631\u0632\u0634 \u06a9\u0633\u0628 \u0648 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u062a\u0635\u0645\u06cc\u0645 \u06af\u06cc\u0631\u06cc \u0631\u0627 \u0628\u0647\u06cc\u0646\u0647 \u0645\u06cc \u06a9\u0646\u062f.  \u062f\u0631 \u067e\u0633\u062a \u0628\u0639\u062f\u06cc\u060c \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0633\u0627\u062f\u0647 \u062a\u0648\u0627\u0628\u0639 \u067e\u0646\u062c\u0631\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u0646\u0628\u0627\u0634\u062a\u0647\u200c\u0647\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0645\u0627\u0646\u0646\u062f \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <code>AVG<\/code>\u060c <code>MAX<\/code>\u060c <code>MIN<\/code>\u060c \u0648 <code>COUNT<\/code>.<\/p>\n<p>\u0645\u0646\u062a\u0638\u0631 \u063a\u0648\u0627\u0635\u06cc \u0639\u0645\u06cc\u0642 \u062a\u0631 \u062f\u0631 \u0642\u0627\u0628\u0644\u06cc\u062a \u0647\u0627\u06cc SQL \u0628\u0627\u0634\u06cc\u062f!  \u0627\u06af\u0631 \u0627\u06cc\u0646 \u067e\u0633\u062a \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0645\u0641\u06cc\u062f \u0628\u0648\u062f\u060c \u0627\u0634\u062a\u0631\u0627\u06a9 \u06af\u0630\u0627\u0631\u06cc \u0648 \u0646\u0638\u0631 \u0631\u0627 \u062f\u0631 \u0632\u06cc\u0631 \u0641\u0631\u0627\u0645\u0648\u0634 \u0646\u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062a\u0635\u0627\u0648\u06cc\u0631 \u0627\u0632 https:\/\/www.boardinfinity.com\/blog\/window-function-in-sql\/ <\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Summarize this content to 400 words in Persian Lang SQL \u06cc\u06a9 \u0632\u0628\u0627\u0646 \u0641\u0648\u0642 \u0627\u0644\u0639\u0627\u062f\u0647 \u0647\u0645\u0647 \u06a9\u0627\u0631\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a. \u06cc\u06a9\u06cc \u0627\u0632 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u062a\u0631\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc SQL \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u062f\u0631 \u0627\u0646\u062c\u0627\u0645 \u062a\u062c\u0645\u06cc\u0639 \u0627\u0633\u062a. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u062f\u0627\u062f\u0647 \u06cc\u0627 \u0639\u0644\u0627\u0642\u0647 \u0645\u0646\u062f\u0627\u0646\u060c \u0645\u0627 \u0627\u063a\u0644\u0628 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0634\u062e\u06cc\u0635 &hellip;<\/p>\n","protected":false},"author":2,"featured_media":69395,"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-69394","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/69394","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=69394"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/69394\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/69395"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=69394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=69394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=69394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}