SQL Server 2008 R2, Mixed arguments in a computed column

Question

I'm a noob guys, so don't be too harsh.

New to the forum, read around and couldn't fin d an answer. Maybe someone here knows if this works or not.

Building a computed column in the management studio, We'll call it total. When I enter this equation, it works:

Liquor + Beer + Wine + Food + NonAlc

When I enter this equation it fails and returns null:

Liquor + Beer + Wine + Food + NonAlc + NonAlc - Voucher

All fields are identical data types (money). Can't get it to work with mixed arguments. Anyone have any suggestions for me?

Thanks in advance.

Answer 1

Do something like this

ISNULL(Liquor, 0) + ISNULL(Beer, 0) + ISNULL(Wine, 0) + ISNULL(Food, 0) 
      + ISNULL(NonAlc, 0) + ISNULL(NonAlc, 0) - ISNULL(Voucher, 0)

Answer 2

Use this: Concat(Liquor , Beer ,Wine ,food ,NonAlc ,NonAlc - Voucher)