实战:sqlserver 大数据量的insert、delete操作优化

经常使用的语句！

?

--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

（编辑：李大同）

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