注意权限问题
1.查看是否有被锁的表：
select b.owner,b.object_name,a.session_id,a.locked_mode
from v$locked_object a,dba_objects b
where b.object_id = a.object_id
2.查看是哪个进程锁的
select b.username,b.sid,b.serial#,logon_time
from v$locked_object a,v$session b
where a.session_id = b.sid order by b.logon_time
3.杀掉进程
alter system kill session 'sid,serial#';
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作者：相生佑子
来源：CSDN
原文：https://blog.csdn.net/liusa825983081/article/details/80448945
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