如何查看oracle当前连接数，会话数

http://blog.csdn.net/miwucc/article/details/4563918

 

查看session：

select * from v$session where username is not null

select username,count(username) from v$session where username is not null group by username

当前连接数：

select count(*) from v$process

查看连接数参数的设置情况

select value from v$parameter where name = 'processes'

Select count(*) from v$session where status='ACTIVE'　#并发连接数