Group By clause causing error

Question

So here is the context : Developping an ASP.NET MVC 4 web app, I have in my database a table ProductAllocations which is composed of 2 foreign keys : one from m

Answer 1

You do not have to use aggregate functions with Group By, however any column not being subjected to an aggregate function, but still selected, will need to be contained in the Group By

What exactly are you trying to do with this query?