oracle 查询当前正在执行的事务

    SELECT s.sid,  
          s.serial#,  
          s.event,  
          a.sql_text,  
          a.sql_fulltext,  
          s.username,  
          s.status,  
          s.machine,  
          s.terminal,  
          s.program,  
          a.executions,  
          s.sql_id,  
          p.spid,  
          a.direct_writes  
     FROM (SELECT * FROM v$session WHERE status = 'ACTIVE') s  
     LEFT JOIN v$sqlarea a  
       ON s.sql_id = a.sql_id  
    INNER JOIN v$process p  
       ON s.paddr = p.addr