--以下几个为相关表
SELECT * FROM v$lock;
SELECT
* FROM v$sqlarea;
SELECT * FROM v$session;
SELECT * FROM v$process
;
SELECT * FROM v$locked_object;
SELECT * FROM all_objects;
SELECT *
FROM v$session_wait;
--查看被锁的表
select b.owner,b.object_name,a.session_id,a.locked_mode from
v$locked_object a,dba_objects b where b.object_id = a.object_id;
--查看那个用户那个进程照成死锁
select b.username,b.sid,b.serial#,logon_time from
v$locked_object a,v$session b where a.session_id = b.sid order by
b.logon_time;
--查看连接的进程
SELECT sid, serial#, username, osuser FROM v$session;
--****查出锁定表的sid, serial#,os_user_name, machine_name,
terminal,锁的type,mode
SELECT s.sid, s.serial#, s.username,
s.schemaname, s.osuser, s.process, s.machine,
s.terminal, s.logon_time,
l.type
FROM v$session s, v$lock l
WHERE s.sid = l.sid
AND s.username IS
NOT NULL
ORDER BY sid;
这个语句将查找到数据库中所有的DML语句产生的锁,还可以发现,
任何DML语句其实产生了两个锁,一个是表锁,一个是行锁。
--*****杀掉进程 sid,serial#
alter system kill session
'210,11562';
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