-- oracle
select segment_name, sum(bytes)/1024/1024 Mbytes from user_segments where segment_type in ('TABLE','TABLE PARTITION') group by segment_name order by Mbytes desc ;
-- oracle
select segment_name, sum(bytes)/1024/1024 Mbytes from user_segments where segment_type in ('TABLE','TABLE PARTITION') group by segment_name order by Mbytes desc ;