select owner,segment_name, segment_type from dba_segments where tablespace_name = 'EXAMPLE';
select distinct owner,segment_name, segment_type from dba_extents where tablespace_name='EXAMPLE';
查看哪些objects存儲在EXAMPLE表空間,將其drop或者move,然后再drop tablespace
drop tablespace tablespace_name including contents; 命令刪除表空間