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LowyCCN edited this page Nov 5, 2019 · 38 revisions

Useful SQL

SELECT 
      a.table_name
      ,a.num_rows
      , b.MB
FROM all_tables a
      , (Select Segment_Name,Sum(bytes)/1024/1024 MB From all_segments Group By Segment_Name) b
WHERE a.table_name = b.Segment_Name
ORDER BY a.num_rows desc, b.MB desc;

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