oracle 查看锁表情况并处理锁表

[sql] view plain copy

print ?

1. /*
2. *locked
3. *querylockedobjectandanalysereason,killit
4. *
5. */
7. select'altersystemkillsession'''||SID||','||SERIAL#||''';'
8. from(selectdistincta.sid,
9. a.Serial#,
10. status,
11. machine,226)"> LOCKWAIT,226)"> logon_time
12. fromv$sessiona,v$locked_objectb
13. where(a.status='ACTIVE'ora.status='INACTIVE')
14. anda.sid=b.session_id
15. andb.ORACLE_USERNAME='XYHISTEST'--加上用户名可过滤用户资源
16. )
18. /*2、批量执行第一步生成的语句
19. altersystemkillsession'sid,serial#';
20. altersystemkillsession'6976,33967';*/
21. /*3、查询oracle用户名，机器名，锁表对象*/
22. SELECTl.session_idsid,
23. s.serial#,226)"> l.locked_mode,226)"> l.oracle_username,226)"> l.os_user_name,226)"> s.machine,226)"> s.terminal,226)"> o.object_name,226)"> s.logon_time
24. FROMv$locked_objectl,all_objectso,v$sessions
25. WHEREl.object_id=o.object_id
26. ANDl.session_id=s.sid
27. ORDERBYsid,s.serial#;
28. /*3.或者*/
29. selects.SID,s.OSUSER,p.spidasOSPID,s.MACHINE,s.TERMINAL,s.PROGRAM
30. fromv$sessions,v$processp
31. wheres.sid=6--session_id
32. ands.paddr=p.addr;
33. /*4、查询是执行何sql语句导致锁表的*/
34. selectb.sql_text
35. sqlb
36. wherea.sid=6anda.sql_ADDRESS=b.ADDRESS(+);
37. /*5、查询是执行何sql语句导致锁表的*/
38. s.user#,226)"> a.sql_text,226)"> a.action
39. FROMv$sqlareaa,v$sessions,v$locked_objectl
40. WHEREl.session_id=s.sid
41. ANDs.prev_sql_addr=a.address
42. sqlarea; SELECT * FROM v$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$session; --3.查出锁定表的sid,os_user_name,machine_name,terminal，锁的type,mode SELECT s.sid,s.serial#,s.username,s.schemaname,s.osuser,s.process,s.machine,s.terminal,s.logon_time,l.type FROM v$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';