sql server 大数据量的insert、delete操作优化 - MSSQL教程

--大批量导出orders表:insert

DBCC DROPCLEANBUFFERS

DBCC FREEPROCCACHE

go

SET NOCOUNT ON

BEGIN TRANSACTION

INSERT INTO test.dbo.orders with(tablock) SELECT * FROM

bak.dbo.Orders

WHERE ordertime BETWEEN '2010-05- 01' AND '2010-05-10'

COMMIT

go

--大批量导出orders 表:delete

DBCC DROPCLEANBUFFERS

DBCC FREEPROCCACHE

go

SET NOCOUNT ON

BEGIN TRANSACTION

while 1=1

begin

delete top(1000) from test.dbo.orders with(tablock)

WHERE ordertime BETWEEN '2010-05-01' AND '2010-05-10'

if @@rowcount<1000

break

end

COMMIT

go

查看本栏目更多精彩内容：http://www.bianceng.cn/database/SQLServer/

（编辑：应用网_镇江站长网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!