Oracle查看锁语句并删除会话锁

查询数据库锁表的语句

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))

找出数据库的serial#,以备杀死：

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;

select t2.username,t2.sid,t2.serial#,t2.logon_time,t2.sid || ',' ||t2.serial#
from v$locked_object t1,v$session t2 
where t1.session_id=t2.sid order by t2.logon_time;

杀死session

alter system kill session 'sid,serial#'