SELECT @@MAX_CONNECTIONS /32767

在SQL Server里查看当前连接的在线用户数:

use master

select loginame,count(0) from sysprocesses
group by loginame
order by count(0) desc

select nt_username,count(0) from sysprocesses
group by nt_username
order by count(0) desc

如果某个SQL Server用户名test连接比较多,查看它来自的主机名:

select hostname,count(0) from sysprocesses where loginame='test'
group by hostname
order by count(0) desc

如果某个SQL Server用户名test连接比较多,查看它最后一次操作的时间范围分组:

select convert(varchar,last_batch,111),count(0) from sysprocesses where loginame='test'
group by convert(varchar,last_batch,111)
order by count(0) desc

如果从主机(www)来的连接比较多,可以查看它的进程详细情况

select * from  sysprocesses where hostname='www'

如果www机器主要提供网页服务,可能是asp程序处理连接时出了问题, 生成杀这些进程的SQL语句:

select 'kill '+convert(varchar,spid) from sysprocesses where hostname='www'

如果这样的问题频繁出现,可以写一个存储过程sp_KillIdleSpids.sql,

写一个作业, 执行它, 来自动杀掉从主机(www)来但已经一天没有响应的用户连接.