SQLServer重用语句

发布时间：2020-12-12 13:44:54 所属栏目：MsSql教程来源：网络整理

导读：? 1.删除表里90%数据 DELETE T? FROM (SELECT TOP (90) PERCENT *? ? ? ? FROM [KS_DataBase2017].[dbo].[KS_EquipRec20170518] where ColTime ='2017-05-18' and ColTime '2017-05-18 06:00' ? ? ? ORDER BY NEWID()) T 2.查询一年内每个月总记录 SELECT CO

? 1.删除表里90%数据

DELETE T?

FROM (SELECT TOP (90) PERCENT *?
? ? ? FROM [KS_DataBase2017].[dbo].[KS_EquipRec20170518] where ColTime >='2017-05-18' and ColTime <'2017-05-18 06:00'

? ? ? ORDER BY NEWID()) T

2.查询一年内每个月总记录

SELECT COUNT(*) FROM table_emp WHERE YEAR(ARR_DATE) = '2012'GROUPBY MONTH)

（编辑：李大同）

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