Oracle查询被锁的表以及解锁表

1.查询引起了锁表的原因

1select l.session_id sid,
2       s.serial#,
3       l.locked_mode,
4       l.oracle_username,
5       s.user#,
6       l.os_user_name,
7       s.machine,
8       s.terminal,
9       a.sql_text,
10       a.action
11  from v$sqlarea a, v$session s, v$locked_object l
12  where l.session_id = s.sid
13  and s.prev_sql_addr = a.address
14  order by sid, s.serial#;

2.查询被锁的表

select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id

3.查看是哪个session引起的

select b.username,b.sid,b.serial#,logon_time from  v$locked_object a,v$session b where a.session_id = b.sid order by b.logon_time

4.杀掉对应进程即解锁

1--其中99是sid 178是serial#
2alter system kill session '99,178'