오픈된 Statement 갯수 보기 쿼리
select sid, count(*) cnt from v$open_cursor
where user_name = 'TRANIZ'
group by sid
order by cnt desc


연결된 세션 갯수 보기
select sid, count(*) cnt from v$session
where username = 'TRANIZ'
group by sid
order by cnt desc  

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