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提取Oracle当前用户名,机器名,IP的方法

select sysdate  当前时间,
       sys.login_user  数据库用户,
       machine   登录机器名,
       SYS_CONTEXT('USERENV', 'IP_ADDRESS')   登录IP,
       program   应用程序
  from v$session
 where AUDSID = USERENV('SESSIONID');


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