SQL SERVER2000中怎么控制同一用户多次登陆

SQL SERVER2000中如何控制同一用户多次登陆？
SQL SERVER2000中如何控制同一用户多次登陆？请给出具体代码最好

[解决办法]

SQL code

DECLARE @spids VARCHAR(100)--SELECT a.spid,a.logiName,a.login_time FROM sysprocesses aSELECT @spids=ISNULL(@spids+',','') + RTRIM(a.spid)    FROM sysprocesses aFULL JOIN sysprocesses b    ON a.loginame=b.loginame    WHERE b.spid=@@spidPRINT @spids--觉得哪个不爽,用 KILL spid将进程杀掉
[解决办法]
SQL code
DECLARE @spids VARCHAR(1000)SELECT @spids=ISNULL(@spids+'KILL ','KILL ') + RTRIM(a.spid)+';' FROM sysprocesses aFULL JOIN sysprocesses b    ON a.loginame=b.loginame    WHERE b.spid=@@spid AND a.spid!=@@spid--PRINT @spidsEXEC(@spids)