DBA_TABLES describes all relational tables accessible to the DBA user
DBA_TABLES是DBA用户所拥有的或有访问权限的表
ALL_TABLES describes all relational tables accessible to the current user
ALL_TABLES是某一用户所拥有的或有访问权限的表
USER_TABLES describes all relational tables owned by the current userUSER_TABLES是某一用户所拥有的表
故DBA_TABLES >= ALL_TABLES >= USER_TABLES
DBA_ALL_TABLES Description of all object and relational tables in the database
DBA_ALL_TABLES是DBA用户所拥有的或有访问权限的对象和表
ALL_ALL_TABLES Description of all object and relational tables accessible to the user
ALL_ALL_TABLES是某一用户拥有的或有访问权限的对象和表
USER_ALL_TABLES Description of all object and relational tables owned by the user's
USER_ALL_TABLES是某一用户所拥有的对象和表
故DBA_ALL_TABLES >= ALL_ALL_TABLES >= USER_ALL_TABLES
Related: http://ss64.com/orad/USER_ALL_TABLES.html
