RAM used by SQL Query Tips

Oracle Database Tips by Donald BurlesonNovember 5, 2015

Question: How can see the RAM used by a SQL query?

Answer: The Oracle PGA RAM is used by SQL for sorting, hash joins and storing SQL intermediate result sets. This script will display the RAM for a specific SQL statement.

Also see RAM used in SQL execution plan step and RAM used by session.

You can also see all RAM used by a specific user ID:

select
   username,
   name,
   value
from
   v$session
join
   v$sesstat using (sid)
join
   v$statname using (statistic#)
where
   name = 'session pga memory'
and
   username='MYUSER';

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