sp_who 查看数据库连接数

create table #TempTable(spid int,ecid int,statusvarchar(32),loginname varchar(32),hostname varchar(32),blkint,dbname varchar(32),cmd varchar(32),request_idint); 

insert into #TempTable 

exec sp_who; 

select * from #TempTable where [dbname] = 'DataBaseName' andHostName = 'PCName'

drop table #TempTable