数据库常用连接

time has not expired

AND @OriginalSize = (SELECT size FROM sysfiles WHERE name = @LogicalFileName)

AND (@OriginalSize * 8 /1024) > @NewSize BEGIN -- Outer loop. SELECT @Counter = 0

WHILE ((@Counter BEGIN -- update INSERT DummyTrans VALUES ('Fill Log') DELETE DummyTrans

SELECT @Counter = @Counter + 1 END

EXEC (@TruncLog) END

SELECT 'Final Size of ' + db_name() + ' LOG is ' + CONVERT(VARCHAR(30),size) + ' 8K pages or ' + CONVERT(VARCHAR(30),(size*8/1024)) + 'MB' FROM sysfiles

WHERE name = @LogicalFileName DROP TABLE DummyTrans SET NOCOUNT OFF

8、说明：更改某个表

exec sp_changeobjectowner 'tablename','dbo'

9、存储更改全部表

CREATE PROCEDURE dbo.User_ChangeObjectOwnerBatch @OldOwner as NVARCHAR(128), @NewOwner as NVARCHAR(128) AS

DECLARE @Name as NVARCHAR(128) DECLARE @Owner as NVARCHAR(128) DECLARE @OwnerName as NVARCHAR(128)

DECLARE curObject CURSOR FOR select 'Name' = name, 'Owner' = user_name(uid) from sysobjects

where user_name(uid)=@OldOwner order by name

OPEN curObject

FETCH NEXT FROM curObject INTO @Name, @Owner

WHILE(@@FETCH_STATUS=0) BEGIN

if @Owner=@OldOwner begin

set @OwnerName = @OldOwner + '.' + rtrim(@Name) exec sp_changeobjectowner @OwnerName, @NewOwner end

-- select @name,@NewOwner,@OldOwner

FETCH NEXT FROM curObject INTO @Name, @Owner END

close curObject deallocate curObject GO

10、SQL SERVER中直接循环写入数据 declare @i int set @i=1 while @ibegin

insert into test (userid) values(@i) set @i=@i+1

end

小记存储过程中经常用到的本周，本月，本年函数 Dateadd(wk,datediff(wk,0,getdate()),-1) Dateadd(wk,datediff(wk,0,getdate()),6)

Dateadd(mm,datediff(mm,0,getdate()),0)

Dateadd(ms,-3,dateadd(mm,datediff(m,0,getdate())+1,0))

Dateadd(yy,datediff(yy,0,getdate()),0)

Dateadd(ms,-3,DATEADD(yy, DATEDIFF(yy,0,getdate())+1, 0))

上面的SQL代码只是一个时间段 Dateadd(wk,datediff(wk,0,getdate()),-1) Dateadd(wk,datediff(wk,0,getdate()),6) 就是表示本周时间段.

下面的SQL的条件部分,就是查询时间段在本周范围内的: Where Time BETWEEN Dateadd(wk,datediff(wk,0,getdate()),-1) AND Dateadd(wk,datediff(wk,0,getdate()),6) 而在存储过程中

select @begintime = Dateadd(wk,datediff(wk,0,getdate()),-1) select @endtime = Dateadd(wk,datediff(wk,0,getdate()),6)