2、SELECT sid, serial#, username, osuser FROM v$session where sid = 162;   将162换成你查出来的session_id

3、kill掉session

     ALTER SYSTEM KILL SESSION ‘162,4294‘;   4294为第二步查出来的serial#;

转自 http://www.cnblogs.com/yuxiaona/p/5862021.html

解决ora-00054 Oracle锁表问题