Reuse select query in a procedure in Oracle

Posted by Jer on Stack Overflow See other posts from Stack Overflow or by Jer
Published on 2010-03-23T16:21:43Z Indexed on 2010/03/23 16:23 UTC
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How would I store the result of a select statement so I can reuse the results with an in clause for other queries? Here's some pseudo code:

declare
  ids <type?>;
begin
  ids := select id from table_with_ids;
  select * from table1 where id in (ids);
  select * from table2 where id in (ids);
end;

... or will the optimizer do this for me if I simply put the sub-query in both select statements?

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