SELECT owner, table_name, TRUNC(SUM(bytes)/(1024*1024)) MBFROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type = 'TABLE' UNION ALL SELECT i.table_name, i.owner, s.bytes FROM dba_indexes i, dba_segments s
SELECT owner, table_name, TRUNC(SUM(bytes)/(1024*1024)) MB FROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type = 'TABLE' UNION ALL SELECT i.table_name, i.owner, s.bytes FROM dba_indexes i, dba_segments s WHERE s.segment_name = i.index_name AND s.owner = i.owner AND s.segment_type = 'INDEX' UNION ALL SELECT l.table_name, l.owner, s.bytes FROM dba_lobs l, dba_segments s WHERE s.segment_name = l.segment_name AND s.owner = l.owner AND s.segment_type = 'LOBSEGMENT' UNION ALL SELECT l.table_name, l.owner, s.bytes FROM dba_lobs l, dba_segments s WHERE s.segment_name = l.index_name AND s.owner = l.owner AND s.segment_type = 'LOBINDEX' ) GROUP BY table_name, owner ORDER BY SUM(bytes) DESC ;