ป้ายแต่ละประเภทมีกี่เหรียญ ไม่จำเป็นต้องใช้ทุกตาราง
How many of each type of Badge are there?.It is not neccessary to use all the tables.
 ReviewTaskTypes:  Id [ number]  Name [ text]  Description [ text] 
SELECT COUNT(DISTINCT Badges.Name) AS Number, Badges.Class AS Class FROM Badges WHERE Badges.TagBased = 0 GROUP BY Badges.Class