Mssql处理孤立用户的存储过程

CREATE PROCEDURE [LoneUser]
--INPUT
@DBName             nvarchar(50),
@UserName           nvarchar(50)
AS
    Exec sp_configure ''allow updates'',''1''
    RECONFIGURE WITH OVERRIDE
   
    Declare @ExecStr nvarchar(4000)
  
    Select @ExecStr = '' Declare @b varbinary(85) ''
                    + '' Use Master'' 站.长.站
                    + '' Select @b = sid From syslogins Where Name = '''''' + @UserName + ''''''''
                    + '' Use '' + @DBName
                    + '' Update sysusers Set sid = @b Where name = '''''' + @UserName + '''''''' Chinaz

    --Print @ExecStr
    Exec(@ExecStr)

    Exec sp_configure ''allow updates'',''0''
    RECONFIGURE WITH OVERRIDE Chinaz^com