數據庫消除日記文件(LDF文件過年夜)。本站提示廣大學習愛好者：（數據庫消除日記文件(LDF文件過年夜)）文章只能為提供參考，不一定能成為您想要的結果。以下是數據庫消除日記文件(LDF文件過年夜)正文
消除日記：
DECLARE @LogicalFileName sysname,
@MaxMinutes INT,
@NewSize INT
USE szwzcheck -- 要操作的數據庫名
SELECT @LogicalFileName = 'szwzcheck_Log', -- 日記文件名
@MaxMinutes = 10, -- Limit on time allowed to wrap log.
@NewSize = 20 -- 你想設定的日記文件的年夜小(M)
-- Setup / initialize
DECLARE @OriginalSize int
SELECT @OriginalSize = size
FROM sysfiles
WHERE name = @LogicalFileName
SELECT 'Original Size of ' + db_name() + ' LOG is ' +
CONVERT(VARCHAR(30),@OriginalSize) + ' 8K pages or ' +
CONVERT(VARCHAR(30),(@OriginalSize*8/1024)) + 'MB'
FROM sysfiles
WHERE name = @LogicalFileName
CREATE TABLE DummyTrans
(DummyColumn char (8000) not null)
DECLARE @Counter INT,
@StartTime DATETIME,
@TruncLog VARCHAR(255)
SELECT @StartTime = GETDATE(),
@TruncLog = 'BACKUP LOG ' + db_name() + ' WITH TRUNCATE_ONLY'
DBCC SHRINKFILE (@LogicalFileName, @NewSize)
EXEC (@TruncLog)
-- Wrap the log if necessary.
WHILE @MaxMinutes > DATEDIFF (mi, @StartTime, GETDATE()) -- time
AND @OriginalSize = (SELECT size FROM sysfiles WHERE name =
@LogicalFileName)
AND (@OriginalSize * 8 /1024) > @NewSize
BEGIN -- Outer loop.
SELECT @Counter = 0
WHILE ((@Counter < @OriginalSize / 16) AND (@Counter < 50000))
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
把szwzcheck換成你數據庫的名字便可，在查詢剖析器外面運轉。
有全角的空格(為了顯示悅目),你本身把他換一下.
編纂注：
普通情形下，用上面的語句更簡略
DUMP TRANSACTION [jb51] WITH NO_LOG
BACKUP LOG [jb51] WITH NO_LOG
DBCC SHRINKDATABASE([jb51])
個中jb51就是你要處置的數據庫名。
