ORACLE数据库如何查看死锁?

Question

ORACLE数据库如何查看死锁

Answer 1

SELECT substr(v$lock.sid,1,4) "SID",       substr(username,1,12) "UserName",       substr(object_name,1,25) "ObjectName",       v$lock.type "LockType",       decode(rtrim(substr(lmode,1,4)),       '2','Row-S (SS)','3','Row-X (SX)',       '4','Share',     '5','S/Row-X (SSX)',       '6','Exclusive', 'Other' ) "LockMode",       substr(v$session.program,1,25) "ProgramName"FROM V$LOCK,SYS.DBA_OBJECTS,V$SESSIONWHERE (OBJECT_ID = v$lock.id1      AND v$lock.sid = v$session.sid      AND username IS NOT NULL      AND username NOT IN ('SYS','SYSTEM')      AND SERIAL# != 1);