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Tables Larger than 1 GB in Size in Oracle Database

Sometimes it is required to find the largest tables residing in your database. It helps to identify candidates for table Paritioning. This is the query you can run to identify largest segments in database.

select segment_name as "Table Name" , round (bytes/1024/1024/1024) || ' GB' as "Size" from user_segments where bytes > 1073741824 order by bytes desc;


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