1、用dba权限的用户查看数据库都有哪些锁
SELECT T2.USERNAME,T2.SID,T2.SERIAL#,T2.LOGON_TIME
FROM V$LOCKED_OBJECT T1,V$SESSION T2
WHERE T1.SESSION_ID=T2.SID ORDER BY T2.LOGON_TIME;
如:testuser 339 13545 2009-3-5 17:40:05
知道被锁的用户testuser,sid为339,serial#为13545
2、根据sid查看具体的sql语句,如果sql不重要,可以kill
SELECT SQL_TEXT FROM V$SESSION A,V$SQLTEXT_WITH_NEWLINES B
WHERE DECODE(A.SQL_HASH_VALUE, 0, PREV_HASH_VALUE, SQL_HASH_VALUE)=B.HASH_VALUE
AND A.SID=&SID ORDER BY PIECE;
查出来的sql,如: BEGIN :ID := SYS.DBMS_TRANSACTION.LOCAL_TRANSACTION_ID; END;
3、kill该事务
ALTER SYSTEM KILL SESSION '339,13545';
4、这样就可以执行其他的事务sql语句了
如给表加一列:
ALTER TABLE TEST ADD ORG_NAME VARCHAR2(50)