T SQL Conditional String Concatenation

Question

Have a 5 columns of address data. I need to concatenate these fields into a single address with spaces in between the values if they exist. If the column has a null value

Answer 1

Nested isnulls could do what you need. Something like:

SELECT
     ISNULL(streetnumber + ' ', '')
       + ISNULL(streetext + ' ', '')
       etc

relying on the fact that NULL + ' ' = NULL.