select t2.username,
t2.sid,
t2.serial#,
t3.object_name,
t2.OSUSER,
t2.MACHINE,
t2.PROGRAM,
t2.LOGON_TIME,
t2.COMMAND,
t2.LOCKWAIT,
t2.SADDR,
t2.PADDR,
t2.TADDR,
t2.SQL_ADDRESS,
t1.LOCKED_MODE
from v$locked_object t1, v$session t2, dba_objects t3
where t1.session_id = t2.sid
and t1.object_id = t3.object_id
order by t2.logon_time;

ALTER SYSTEM
KILL SESSION ‘345,9617‘ 345是SID ,617是 SERIAL#

Oracle数据库表被锁定以及去除方式