mySQL query : working with INTERVAL and CURDATE

Posted by Tristan on Stack Overflow See other posts from Stack Overflow or by Tristan
Published on 2010-05-08T09:59:53Z Indexed on 2010/05/08 10:08 UTC
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Hello,

i'm building a chart and i want to recieve data for each months

Here's my first request which is working :

SELECT s.GSP_nom AS nom, timestamp, AVG( v.vote +  v.prix  ) /2 AS avg
FROM votes_serveur AS v
INNER JOIN serveur AS s ON v.idServ = s.idServ
WHERE s.valide =1
AND v.date > CURDATE() -30
GROUP BY s.GSP_nom
ORDER BY avg DESC

But, in my case i've to write 12 request to recieve datas for the 12 previous months, is there any trick to avoid writing :

//  example for the previous month
 AND v.date > CURDATE() -60
AND v.date < CURDATE () -30

I heard about INTERVAL, i went to the mySQL doc but i didn't manage to implement it.

Any ideas / example of using INTERVAL please ?

Thank you

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