2017年3月27日
摘要: 1. SELECT SalesOrderID, ProductID, OrderQty ,SUM(OrderQty) OVER(PARTITION BY SalesOrderID) AS Total ,AVG(OrderQty) OVER(PARTITION BY SalesOrderID) AS 阅读全文
posted @ 2017-03-27 15:42 疯狂的小馒头 阅读(1910) 评论(0) 推荐(0) 编辑