问题：数据库实际大小为600MB, 日志文件实际大小为33MB, 但日志文件占用空间为2.8GB!试了多种方式，SHIRNK DATABASE， TRUNCATE LOG FILE, 都没办法将文件缩小。无论如何，这应该算SQL Server的一个BUG吧。
解决方法：
后来找到下面的代码，就可以将日志文件缩小到自己想要的大小了。把代码COPY到查询分析器里，，然后修改其中的3个参数(数据库名，日志文件名，和目标日志文件的大小)，运行即可。
以下为引用的内容：
-----
SET NOCOUNT ON
DECLARE LogicalFileName sysname,
MaxMinutes INT,
NewSize INT USE Marias
-- 要操作的数据库名
SELECT LogicalFileName = 'Marias_log'
-- 日志文件名
MaxMinutes = 10,
-- Limit on time allowed to wrap log.
NewSize = 100
-- 你想设定的日志文件的大小(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
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 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 < 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 |
