sql缩减功能，增加数据库查询效率

将其中的OpenfireServer 换成你自己的数据库名称
USE master
GO
ALTER DATABASE OpenfireServer SET RECOVERY SIMPLE WITH NO_WAIT
GO
ALTER DATABASE OpenfireServer SET RECOVERY SIMPLE  
GO
USE OpenfireServer
GO
DBCC SHRINKFILE (N'OpenfireServer_log' , 2, TRUNCATEONLY)
GO
USE master
GO
ALTER DATABASE OpenfireServer SET RECOVERY FULL WITH NO_WAIT
GO
ALTER DATABASE OpenfireServer SET RECOVERY FULL  
GO