查询Oracle正在执行和执行过的SQL语句--查询Oracle正在执行的sql语句及执行该语句的用户SELECT b.sid oracleID,       b.username 登录Oracle用户名,       b.serial#,       spid 操作系统ID,       paddr,       sql_text 正在执行的SQL,       b.machine 计算机名FROM v$process a, v$session b, v$sqlarea cWHERE a.addr = b.paddr   AND b.sql_hash_value = c.hash_value  --查看正在执行sql的发起者的发放程序SELECT OSUSER 电脑登录身份,       PROGRAM 发起请求的程序,       USERNAME 登录系统的用户名,       SCHEMANAME,       B.Cpu_Time 花费cpu的时间,       STATUS,       B.SQL_TEXT 执行的sqlFROM V$SESSION ALEFT JOIN V$SQL B ON A.SQL_ADDRESS = B.ADDRESS                   AND A.SQL_HASH_VALUE = B.HASH_VALUEORDER BY b.cpu_time DESC  --查出oracle当前的被锁对象SELECT l.session_id sid,       s.serial#,       l.locked_mode 锁模式,       l.oracle_username 登录用户,       l.os_user_name 登录机器用户名,       s.machine 机器名,       s.terminal 终端用户名,       o.object_name 被锁对象名,       s.logon_time 登录数据库时间FROM v$locked_object l, all_objects o, v$session sWHERE l.object_id = o.object_id   AND l.session_id = s.sidORDER BY sid, s.serial#;  --kill掉当前的锁对象可以为alter system kill session 'sid， s.serial#‘;select * from v$access o where o.OBJECT like 'XXWPF007%' --查找正在运行的对象,获取sidselect a.serial# from v$session a WHERE A.SID=sid  --通过sid 获取serial#alter system kill session 'sid,serial#' --eg: alter system kill session '123,3211'SELECT * FROM V$DB_OBJECT_CACHE WHERE name='CUX_OE_ORDER_RPT_PKG' AND LOCKS!='0';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)    OR (sn.SID = M.SID 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;kill 所有占用资源的会话命令形式：alter system kill session 'sid,serial#';占用test_1的资源的会话：alter system kill session '158,15184';