直接上菜：

　　

select username,lockwait,status,machine,program from v$session where sid in
(select session_id from v$locked_object)

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))

--查询数据库所有死锁进程

　　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;

---查出 SESSION_ID，SERIAL#

杀死进程：

　　alter system kill session '21,17293';

　　21--SESSION_ID； 17293--SERIAL#