Question

I have tables

• Product (ID, CategoryID, ...)
• Category (ID, Name, ..), and
• FieldValue (ID, ProductID, Value... )

This is my query:

select count(*) from Product as p, FieldValue as v, Category c
where c.ID = 3 and v.Value="XXX"
and p.ID = v.ProductID and c.ID=p.CategoryID
group by p.ID

My intention is obvious to count the number of products with certain criteria.

The problem is NHibernate is returning me a list of numbers instead of a single number with the number of products. What am I missing?

Any help is greatly appreciated.

Answer 1

You have to remove the group by

With the statment you have, you get one count for each productID, instead of a count for all products.

If you want to count the number of products, replace the count(*) with count(distinct p.id) (still without group by)