–以下幾個爲相關表
SELECT * FROM vsqlarea;
SELECT * FROM vprocess ;
SELECT * FROM vsession_wait;
–查看被鎖的表
select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id;
–查看那個用戶那個進程照成死鎖
select b.username,b.sid,b.serial#,logon_time from vsession b where a.session_id = b.sid order by b.logon_time;
–查看連接的進程
SELECT sid, serial#, username, osuser FROM v$session;
–3.查出鎖定表的sid, serial#,os_user_name, machine_name, terminal,鎖的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 vlock l
WHERE s.sid = l.sid
AND s.username IS NOT NULL
ORDER BY sid;
這個語句將查找到數據庫中所有的DML語句產生的鎖,還可以發現,
任何DML語句其實產生了兩個鎖,一個是表鎖,一個是行鎖。
–殺掉進程 sid,serial#
alter system kill session’210,11562’;