FirstName, LastName in SQL, too complex?

Question

This SQL seems complex, is there an easier way to get FirstName, LastName when one or both of the fields can be NULL?

SELECT COALESCE(LastName,\'\')+
                


        

Answer 1

You can precalculate this in a table by using a peristed calculated column if you will be using this form of the name often. The column could even be indexed if you needed it to be.

ALTER TABLE A
ADD [person_name_last_first]  AS COALESCE(LastName + ', ' + FirstName, 
                LastName, FirstName) PERSISTED

The biggest advantage is that you never have to write this piece of code again, names will be consistently displayed and that you only use the databases time to perform this action when the first and last names are added or changed.