nowait

Oracle资源正忙,要求指定NOWAIT：



Oracle解锁问题
执行    truncate table 报错:ORA-00054: 资源正忙，要求指定NOWAIT



解决：



通过v$session，v$locked_object查看谁锁定了资源
select t1.sid, t1.serial#, t1.username, t1.logon_time from v$session t1 , v$locked_object t2
where t1.sid = t2.session_id order by t1.logon_time

通过alter system kill session 'sid, serial#'把session kill掉
alter system kill session '6,8'