Q&A about the site for physical fitness professionals, athletes, trainers, and those providing health-related needs
-- PostTypes id
-- Posts PostTypeId, OwnerUserId
Select Count(1) as no_of_posts
From Posts p
Inner Join PostTypes pt on p.PostTypeId = pt.Id
Inner Join Users u on p.OwnerUserId = u.Id
Where pt.Name = 'Question'
And u.DisplayName = 'Mat Mannion'