v$lock:视图列出当前系统持有的或正在申请的所有锁的情况
v$locked_object:视图列出当前系统中哪些对象正被锁定
1)、查询当前数据库锁的情况,以及导致锁的sql语句:
Select object_name as 对象名称,s.sid,s.serial#,p.spid as 系统进程号,sq.SQL_TEXT From v$locked_object l , dba_objects o , v$session s , v$process p,v$sqlarea sq Where l.object_id=o.object_id and l.session_id=s.sid and s.paddr=p.addr and s.SQL_ADDRESS = sq.ADDRESS;
2)、杀掉非正常的一些锁
alter system kill session 'sid,serial#';
3)、批量杀掉未释放的锁
declare cursor mycur is select b.sid,b.serial# from v$locked_object a,v$session b where a.session_id = b.sid group by b.sid,b.serial#; begin for cur in mycur loop execute immediate ( 'alter system kill session '''||cur.sid || ','|| cur.SERIAL# ||''' '); end loop; end;