[转]SQL Server 2008收缩日志文件

SQL Server 2008不再支持BACKUP LOG WITH TRUNCATE_ONLY语句,

要收缩数据库日志,首先需要通过将数据库恢复模式设置为simple来截断该文件.

USE DATABASENAME;
GO
-- Truncate the log by changing the database recovery model to SIMPLE.
ALTER DATABASE DATABASENAME
SET RECOVERY SIMPLE;
GO
-- Shrink the truncated log file to 1 MB.
DBCC SHRINKFILE (DATABASENAME_Log, 1);
GO
-- Reset the database recovery model.
ALTER DATABASE DATABASENAME
SET RECOVERY FULL;
GO

收缩已做镜像的数据库的日志文件:

USE DATABASENAME;
GO
BACKUP LOG DATABASENAME TO DISK='文件路径'
-- Shrink the truncated log file to 1 MB.
DBCC SHRINKFILE (DATABASENAME_Log, 1);
GO

转自: http://www.cnblogs.com/wolfly/archive/2009/09/07/1562149.html