How to get oracle table occupied size

Hi,
Actually my task is arrange to get an oracle table occupied size for a particular schema.
I have an query to get allocated table size,the query as follows
SELECT SEGMENT_NAME,sum (BYTES)/1024/1024 FROM user_SEGMENTS WHERE segment_type='TABLE' group by segment_name order by sum(bytes) desc;
But actually i need to get "how much space occupied for each table in that particular schema"
Thanks in advance...............

Do you want this?
SELECT t.owner, t.table_name, t.tablespace_name,
(sum(d.bytes)/1024/1024) table_size
FROM dba_segments d, all_tables t
WHERE d.segment_name = t.table_name
   AND d.segment_type = 'TABLE'
   AND t.owner = 'SCOTT' --- you can change or delete this condition
GROUP BY   t.owner, t.table_name, t.tablespace_name;

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> Dear colleagues!
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/Untested!
P;
Edited by: bluefrog on Mar 5, 2010 5:08 PM

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