Need to insert SQL without duplicates

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Answer by viperfx for Need to insert SQL without duplicates

November 22, 2011, 5:16 pm

Thanks for the replies!I actually managed to solve it a few hours after posting this, I made the remote_id a unique column and then did the following for the SQLINSERT INTO feed_items(feed_id,...

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Answer by Jake Feasel for Need to insert SQL without duplicates

November 22, 2011, 11:51 am

Try this:$this->db->query('INSERT INTO feed_items(feed_id, remote_id, link, title, created_time, updated_time) SELECT ?, ?, ?, ?, ?, NOW() WHERE not exists(SELECT 1 FROM feed_items f2 WHERE...

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Answer by Michael Leaney for Need to insert SQL without duplicates

November 21, 2011, 4:38 pm

ALTER TABLE `feed_items` ADD UNIQUE INDEX `constraint` (`link`, `remote_id`);

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Answer by Sudhir Bastakoti for Need to insert SQL without duplicates

November 21, 2011, 4:36 pm

You can use ON DUPLICATE for avoiding such conditions: Check: http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.htmlHope it helps

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Answer by alex for Need to insert SQL without duplicates

November 21, 2011, 4:31 pm

Add a UNIQUE constraint to those two columns.

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