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exec sp_rename 't_2.lname','lastname','column'
exec sp_rename ‘tabelname’,'new'
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SET STATISTICS TIME ON
// sql Óï¾ä£ºselect * from table
SET STATISTICS TIME OFF
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Drop index indexname on tablename£»
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exec sp_helpindex cz
CREATE NONCLUSTERED INDEX [index_4] ON [dbo].[cz201]
(
[quxian] ASC,
[time_] ASC
)
INCLUDE ( [m201]) WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY] £¨»¹²»ÖªµÀÕâÆðʲô×÷Óã©
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alter table mxm32 add newColumn varchar(200)
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alter table mxm32 alter column newColumn int
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