Sql Server using DateTime as Primary Key

Question

Hi my questions is similar to:

MySQL: Using DATETIME as primary key

But I\'m specifically interested in Sql Server and I want to approach the question practi

Answer 1

If you really want to avoid a surrogate key for this (ID/identity column), I would at least combine the datetime column with the user id column for a composite key. This sounds like a more natural fit for your data.