Oracle里查看所有表的SQL

select?? table_name?? from?? user_tables;???? //当前用户的表??
???
select?? table_name?? from?? all_tables;???? //所有用户的表??
???
select?? table_name?? from?? dba_tables;?????? //包括系统表

select?? table_name?? from?? dba_tables?? where?? owner='用户名'