USE master
GO
SP_CONFIGURE 'allow updates',1 RECONFIGURE WITH OVERRIDE
GO
UPDATE SYSDATABASES SET STATUS =32768 WHERE NAME='置疑的数据库名'
GO
SP_DBOPTION '置疑的数据库名', 'single user', 'true'
GO
DBCC CHECKDB('置疑的数据库名')
GO
UPDATE SYSDATABASES SET STATUS =28 WHERE NAME='置疑的数据库名'
GO
SP_CONFIGURE 'allow updates', 0 RECONFIGURE WITH OVERRIDE
GO
SP_DBOPTION '置疑的数据库名', 'single user', 'false'
GO