oracle 之 查询某用户下表大小
select a.segment_name, a.segment_type, a.bytes, a.bytes / 1024 / 1024 byte_m, b.created from dba_segments a inner join all_objects b on b.object_type = 'TABLE' and a.owner = b.owner and a.segment_name = b.object_name where a.owner = 'STATUSER' and a.segment_type = 'TABLE' /* and a.bytes>500