-- 1. 查看被锁的表
SELECT p.spid, a.serial#, c.object_name, b.session_id, b.oracle_username,b.os_user_name
FROM v$process p, v$session a, v$locked_object b, all_objects c
WHERE p.addr = a.paddr
AND a.process = b.process
AND c.object_id = b.object_id

-- 2. 查看是哪个进程锁的
SELECT sid, serial#, username, status, osuser FROM v$session  where serial# = ‘5002‘

SELECT sid, serial#, username, status, osuser FROM v$session  where serial# = ‘3789‘

-- 3. 杀掉这个进程 
alter system kill session ‘sid,serial#‘;

alter system kill session ‘269,3789‘;

alter system kill session ‘34,4661‘;

alter system kill session ‘265,5002‘;
alter system kill session ‘289,1688‘;
alter system kill session ‘282,5799‘;