USE [master]

GO

ALTER DATABASE [数据库名] SET RECOVERY SIMPLE WITH NO_WAIT

GO

ALTER DATABASE [数据库名] SET RECOVERY SIMPLE

GO

USE [数据库名]

GO

DBCC SHRINKFILE (N'[数据库日志文件名称]' , 0,TRUNCATEONLY)

GO

USE [master]

GO

ALTER DATABASE [数据库名] SET RECOVERY FULL WITH NO_WAIT

GO

ALTER DATABASE [数据库名] SET RECOVERY FULL

GO  

--上面的“数据库日志文件名称”用下面SQL的查询结果

--查询指定数据库的日志文件名称

USE [数据库名]

GO

SELECT name FROM SYS.database_files WHERE type_desc='LOG'