MYSQL sélectionner info de la somme dans la requête

Question

cette requête fonctionne mais tire tous les résultats. Je voudrais qu'il tire seulement des résultats qui ne sont pas 0,00 qui est le total. Ceci est calculé dans la requête mais je ne sais pas comment exclure les résultats avec 0.00?

SELECT name, 
SUM(IF(timeperiod='0',totalinv-paidtotal,0)) AS p0030, 
SUM(IF(timeperiod='30',totalinv-paidtotal,0)) AS p3060, 
SUM(IF(timeperiod='60',totalinv-paidtotal,0)) AS p6090, 
SUM(IF(timeperiod='90',totalinv-paidtotal,0)) AS p9000, 
SUM(totalinv)-SUM(paidtotal) AS totaldue 
FROM 
(
    SELECT primary_key, name, timeperiod, totalinv, SUM(paidtotal) as paidtotal 
    FROM 
    (
     SELECT 
      a.primary_key, 
      a_name AS name, 
      CAST(totalinv AS DECIMAL(10,2)) as totalinv, 
      CAST(IFNULL(amount,0) AS DECIMAL(10,2)) as paidtotal, 
      CASE 
       WHEN invoicedate > DATE_SUB(STR_TO_DATE($today,'%Y%m%d'),INTERVAL 29 DAY) THEN '0' 
       WHEN invoicedate > DATE_SUB(STR_TO_DATE($today,'%Y%m%d'),INTERVAL 59 DAY) AND invoicedate <= DATE_SUB(STR_TO_DATE($today,'%Y%m%d'),INTERVAL 29 DAY) THEN '30' 
       WHEN invoicedate > DATE_SUB(STR_TO_DATE($today,'%Y%m%d'),INTERVAL 89 DAY) AND invoicedate <= DATE_SUB(STR_TO_DATE($today,'%Y%m%d'),INTERVAL 29 DAY) THEN '60' 
       ELSE '90' 
      END AS timeperiod 
     FROM $mysql_billing a 
     LEFT OUTER JOIN $mysql_billing_dates b ON a.primary_key = b.id 
     WHERE $today >= invoicedate 
     AND $totaldue!='0.00' 
     AND void='' 
    ) foo 
    GROUP BY primary_key, name, timeperiod 
) bar 
GROUP BY name 
ORDER BY name ASC 

Answer 1

Vous manque seulement un HAVING à la fin:

.... 
GROUP BY name 
HAVING totaldue != 0 
ORDER BY name ASC 

qui vous permettra de sélectionner sur votre calculée/colonne groupée.