/*查看被锁的会话*/
SELECT SN.USERNAME,
M.SID,
SN.SERIAL#,
M.TYPE,
DECODE(M.LMODE, 0, \'None\', 1, \'Null\', 2, \'Row Share\', 3, \'Row Excl.\', 4, \'Share\', 5, \'S/Row Excl.\', 6, \'Exclusive\', LMODE, LTRIM(TO_CHAR(LMODE, \'990\')) ) LMODE,
DECODE(M.REQUEST, 0, \'None\', 1, \'Null\', 2, \'Row Share\', 3, \'Row Excl.\', 4, \'Share\', 5, \'S/Row Excl.\', 6, \'Exclusive\', REQUEST, LTRIM(TO_CHAR(M.REQUEST, \'990\')) ) REQUEST,
M.ID1,
M.ID2
FROM V$SESSION SN, V$LOCK M
WHERE (SN.SID = M.SID AND M.REQUEST != 0) --存在锁请求，即被阻塞
OR (SN.SID = M.SID --不存在锁请求，但是锁定的对象被其他会话请求锁定
AND M.REQUEST = 0 AND LMODE != 4 AND (ID1, ID2) IN (
SELECT S.ID1, S.ID2
FROM V$LOCK S
WHERE REQUEST != 0
AND S.ID1 = M.ID1
AND S.ID2 = M.ID2) ) ORDER BY ID1, ID2, M.REQUEST;
/*将数据库中被锁表解锁*/
ALTER SYSTEM KILL SESSION \'sid,SERIAL#\';