Compte Mysql (*) comme Total O WH Total?

Question

SELECT 
    Id, QId, UName, Ans, Date, COUNT(*) * 10 as Total 
FROM 
    question 
WHERE 
    COUNT(*) 
DESC 
GROUP BY 
    UName 

ne fonctionne pas :(

Answer 1

Je pense que vous vouliez filtrer les groupes Utiliser HAVING COUNT(*) au lieu de WHERE.

SELECT Id, QId, UName, Ans, Date, Count(*) * 10 as Total 
FROM question 
GROUP BY UName 
HAVING Count(*) 

Si vous quoi trier les groupes par nombre d'éléments puis utilisez ORDER BY:

SELECT Id, QId, UName, Ans, Date, Count(*) * 10 as Total 
FROM question 
GROUP BY UName 
ORDER BY Count(*) DESC