Oracle数据库锁表后如何解锁

1. 锁表查询的代码有以下的形式：

   select count(*) from v$locked_object;
   select * from v$locked_object;
   

2. 查看哪个表被锁

   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;
   

3. 查看是哪个session引起的

   select a.OS_USER_NAME, c.owner, c.object_name, b.sid, b.serial#, logon_time
   from v$locked_object a, v$session b, dba_objects c
   where a.session_id = b.sid
   and a.object_id = c.object_id
   order by b.logon_time;
   

4. 杀掉对应进程

   执行命令：alter system kill session '1025,41';  需要用户有权限操作
   其中1025为sid,41为serial#.