网上通常的做法

USE master;
GO
DECLARE @SQL VARCHAR(MAX);
SET @SQL=''
SELECT @SQL=@SQL+'; KILL '+RTRIM(SPID)
FROM master..sysprocesses
WHERE dbid=DB_ID('datayesdb');
EXEC(@SQL);
GO
ALTER DATABASE [datayesdb] SET MULTI_USER 



上面的方法不好用,然后求助lg帮忙终于弄好了,吓死吓死我了
明天得找阿三的师傅再问问了
set deadlock_priority high
alter database [datayesdb] set offline with rollback immediate


set deadlock_priority high
alter database [datayesdb] set online with rollback immediate


set deadlock_priority high
alter database [datayesdb] set multi_user with rollback immediate