SUMPRE VALEUR PAR MOIS SQL
SELECT SUM(count1), SUM(count2), SUM(count3), MONTH(month), YEAR(month)
FROM myTable
GROUP BY MONTH(month), YEAR(month)
Wild Wasp
SELECT SUM(count1), SUM(count2), SUM(count3), MONTH(month), YEAR(month)
FROM myTable
GROUP BY MONTH(month), YEAR(month)