关于v$pwfile_users的描述: V$PWFILE_USERS lists all users in the password file, and indicates whether the user has been granted the SYSDBA, SYSOPER, and SYSASM privileges. 奇怪了,明明有密码文件,为什么这显示的记录是空? 4.回头再来看密码文件,Linux下密码文件的命名格式是orapw$ORACLE_SID,已存的文件名是orapwDEP,再看下ORACLE_SID: