Guid Primary /Foreign Key dilemma SQL Server

Question

I am faced with the dilemma of changing my primary keys from int identities to Guid. I\'ll put my problem straight up. It\'s a typical Retail management app, with POS and ba

Answer 1

Using GUID or int for PK really depends on the scenario. There will be a performance hit changing from INT to GUID. GUID are 4 times bigger than an INT. There is a good article here about the pros and cons of using GUIDs.

Why do you have to change from Integers anyway?