查看是否存在死锁并解决死锁

--查看

Select s.username, l.object_id, l.session_id, s.serial#, s.lockwait, s.status, s.machine, s.program from v$session s, v$locked_object l where s.sid = l.session_id;

 

 

 

 

--杀掉

--SESSION_ID SERIAL# --alter system kill session '4,4325'

 

 

查看已经执行过的sql

--SESSION_ID select sql_text from v$sqlarea a,v$session b where a.SQL_ID=b.PREV_SQL_ID and b.SID='1296';

 

 

当前执行的SQL --SESSION_ID

select sql_text from v$sqlarea where (hash_value,address)=(select sql_hash_value,sql_address from v$session where sid='1296');