常用SQL语句积累
2017-01-18 15:58
281 查看
--批量设置表中某字段为固定值
update dbo.LampList set LampGroupAddress=ISNULL(LampGroupAddress,'')+1
--批量设置表中某字段为Null
UPDATE dbo.LampList SET LampAddress=NULL
--批量删除ID大于1024
DELETE FROM dbo.LampList WHERE Id>1024
update dbo.LampList set LampGroupAddress=ISNULL(LampGroupAddress,'')+1
--批量设置表中某字段为Null
UPDATE dbo.LampList SET LampAddress=NULL
--批量删除ID大于1024
DELETE FROM dbo.LampList WHERE Id>1024