2015年9月1日
SQL Server中Group分组获取Top N方法实现
摘要： 1、采用row_number方法。SELECT *FROM (SELECT RowNumber =row_number() OVER (PARTITION BY TaskID ORDER BY ProduceDate DESC), * FROM dbo.ShippingDocument)tWHERE... 阅读全文
posted @ 2015-09-01 10:11 [在路上ing] 阅读(339) 评论(0) 推荐(0)