SQL2008 的收縮日誌
由於SQL2008對檔案和日誌管理進行了優化，所以以下語句在SQL2005中可以執行但在SQL2008中已經被取消：

(SQL2000)

 -- Prog: Xinsoft
 -- Time: 2005-03-26 10:34
 
 SET NOCOUNT ON
 DECLARE @LogicalFileName sysname, @MaxMinutes INT, @NewSize INT
 
 USE dbJieXin -- 要操作的資料庫名
 SELECT @LogicalFileName = 'dbJieXin_log', -- 日誌檔名
 @MaxMinutes = 10, -- Limit on time allowed to wrap log.
 @NewSize = 10 -- 你想設定的日誌檔案的大小(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
 --Drop TABLE DummyTrans
 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()) 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

-------------------------------

USE dbJieXin

backup log dbJieXin with no_log

dump tran dbJieXin with no_log

dbcc shrinkdatabase (dbJieXin)

--------------------------------------------------------------
(SQL2005)
BackupLog DNNamewith no_log
godumptransaction DNNamewith no_log
goUSE DNName
DBCC SHRINKFILE (