Q&A for professional and enthusiast programmers
Select Distinct TagName, Count (u.Id) From Users u, Posts p, Tags t, PostTags pt WHERE (u.Id=p.OwnerUserId) AND (pt.PostID=p.Id) AND (pt.TagId=t.Id) AND Upper(t.TagName) = Upper('%##TagName##%') AND Upper(u.Location) LIKE Upper('%##Location##%') Group By TagName