查找被死锁的语句：select sql_text from v$sql where hash_value in (select sql_hash_value from v$session where sid in (select session_id from v$locked_object));查找被死锁的进程：SELECT s.username,l.OBJECT_ID,l.SESSION_ID,s.SERIAL#, l.Oracle_USERNAME, l.OS_USER_NAME,l.PROCESS FROM V$LOCKED_OBJECT l,V$SESSION S WHERE l.SESSION_ID=S.SID;把死锁的进程kill：alter system kill session ‘sid,serial#’; （其中sid=l.session_id）
