SQL Server 2008 R2 下如何清理数据库日志文件

废话不多说，直接上代码，清理后日志文件为1M

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'数据库日志逻辑文件名称' , 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  

--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'  

08R2通过，其他版本未测试