http://blog.csdn.net/javaxiaochouyu/article/details/39317267

  1. /*
    *locked
    *query locked object and analyse reason,kill it
    *
    */

    select 'alter system kill session ''' || SID || ',' || SERIAL# || ''';'
    from (select distinct a.sid,
    a.Serial#,
    status,
    machine,
    LOCKWAIT,
    logon_time
    from v$session a, v$locked_object b
    where (a.status = 'ACTIVE' or a.status = 'INACTIVE')
    and a.sid = b.session_id
    and b.ORACLE_USERNAME = 'XYHISTEST' --加上用户名可过滤用户资源
    )

    /*2、批量执行第一步生成的语句
    alter system kill session 'sid,serial#';
    alter system kill session '6976,33967';*/

    /*3、查询oracle用户名，机器名，锁表对象*/
    SELECT l.session_id sid,
    s.serial#,
    l.locked_mode,
    l.oracle_username,
    l.os_user_name,
    s.machine,
    s.terminal,
    o.object_name,
    s.logon_time
    FROM v$locked_object l, all_objects o, v$session s
    WHERE l.object_id = o.object_id
    AND l.session_id = s.sid
    ORDER BY sid, s.serial#;

    /*3.或者*/
    select s.SID, s.OSUSER, p.spid as OSPID, s.MACHINE, s.TERMINAL, s.PROGRAM
    from v$session s, v$process p
    where s.sid = 6 --session_id
    and s.paddr = p.addr;

    /*4、查询是执行何sql语句导致锁表的*/
    select b.sql_text
    from v$session a, v$sql b
    where a.sid = 6 --session_id
    and a.SQL_ADDRESS = b.ADDRESS(+);

    /*5、查询是执行何sql语句导致锁表的*/
    SELECT l.session_id sid,
    s.serial#,
    l.locked_mode,
    l.oracle_username,
    s.user#,
    l.os_user_name,
    s.machine,
    s.terminal,
    a.sql_text,
    a.action
    FROM v$sqlarea a, v$session s, v$locked_object l
    WHERE l.session_id = s.sid
    AND s.prev_sql_addr = a.address
    ORDER BY sid, s.serial#;