sql 开窗函数

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mysql 不支持　分组子查询　over;

SELECT SalesOrderID, ProductID, OrderQty

   ,SUM(OrderQty) OVER(PARTITION BY SalesOrderID) AS ‘Total‘

   ,AVG(OrderQty) OVER(PARTITION BY SalesOrderID) AS ‘Avg‘

   ,COUNT(OrderQty) OVER(PARTITION BY SalesOrderID) AS ‘Count‘

   ,MIN(OrderQty) OVER(PARTITION BY SalesOrderID) AS ‘Min‘

   ,MAX(OrderQty) OVER(PARTITION BY SalesOrderID) AS ‘Max‘

FROM SalesOrderDetail

WHERE SalesOrderID IN(43659,43664);

sql 开窗函数

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原文地址：http://www.cnblogs.com/zhangxiaoshuai/p/5511554.html