title: SqlException ErrorCodes
body: <p>I have a question, and it is not a problem.
  My database have some restrictions, as unique names (Column that stores the name of something that must be unique)
  When inserting or updating, the db verifies if we are not overriding some name, and if so, returns an error that is convertable to SqlException with code 2627</p>
  
  <p>My Question is... if exists some table or something that I can consult to indicate to the final user what to do?</p>
  
  <p>In this case.. that exists a user with the same name....</p>