提交事务的时候提示(数据库被一个用户锁住的解决方法)
select object_id,session_id,locked_mode from v$locked_object;
select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid order by t2.logon_time;
alter system kill session 'sid,serial#';
alter system kill session '7,10839'
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