Nombre de comptes multiples MySQL en requête unique

Question

J'essaie de COMPTER deux colonnes dans une seule requête, mais les résultats crachent les mêmes valeurs pour medcount et uploadcount. Aucune suggestion?

SELECT * , COUNT($tbl_list.listname) AS listcount, 
        COUNT($tbl_uploads.id) AS uploadcount 
     FROM $tbl_members 
     LEFT JOIN $tbl_list ON $tbl_members.username = $tbl_list.username 
     LEFT JOIN $tbl_uploads ON $tbl_members.username = $tbl_uploads.username 
     GROUP BY $tbl_members.username 
     ORDER BY $tbl_members.lastname, $tbl_members.firstname; 

Answer 1

Utilisation:

SELECT tm.*, 
      x.listcount, 
      y.uploadcount 
    FROM $tbl_members tm 
LEFT JOIN (SELECT tl.username, 
        COUNT(tl.listname) AS listcount 
      FROM $tbl_list tl 
     GROUP BY tl.username) x ON x.username = tm.username 
LEFT JOIN (SELECT tu.username, 
        COUNT(tu.id) AS uploadcount 
      FROM $tbl_uploads tu 
     GROUP BY tu.username) y ON y.username = tm.username 
GROUP BY tm.username 
ORDER BY tm.lastname, tm.firstname