oracle連接數

--查看oracle當前連接數
select * from v$session where username is not null

--查看不同用戶的連接數
select username,count(username) from v$session where username is not null group by username 

--連接數
select count(*) from v$session   

--併發連接數
Select count(*) from v$session where status='ACTIVE'　

--最大連接
show parameter processes