Re: Query optimize on large database
why not just:
SELECT d.owner_id, COUNT(*) AS kolvo
FROM data d
WHERE d.owner_id = @user_id
GROUP BY d.owner_id
?
I see no need to JOIN self here
Subject
Views
Written By
Posted
1645
July 13, 2016 01:40AM
987
July 15, 2016 05:12PM
962
July 16, 2016 04:15AM
943
July 16, 2016 12:09PM
964
July 16, 2016 12:36PM
915
July 16, 2016 02:46PM
977
July 17, 2016 11:22AM
940
July 18, 2016 04:28AM
912
July 18, 2016 08:40AM
Re: Query optimize on large database
886
July 20, 2016 04:46AM
952
July 20, 2016 08:06AM
939
July 20, 2016 09:29AM
944
July 21, 2016 04:35AM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.