Oracle系统表

1.查询用户select username from dba_users

2.数据库对象:select username from dba_users

3.表空间:select * from dba_data_files
select * from dba_tablespaces

4.表:select * from dba_tables

5.序列select * from dba_sequences

6.视图:select * from dba_views;
select * from all_views;

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