adding fields containing NULL values

Hi all!

Let's say I have a table like:

employee  date        sallary   extras
--------------------------------------
Name1     01-31-1999  5000.00   NULL
Name1     02-29-1999  5000.00   500.00
Name1     03-31-1999  5000.00   NULL

I would like to get something like:

employee  date        total
-----------------------------
Name1     01-31-1999  5000.00
Name1     02-29-1999  5500.00
Name1     03-31-1999  5000.00

Umfortunately 'select employee,date,sallary+extras as total' doesn't give the
desired result because 'somevalue + NULL' is considered to be NULL. 
Is there any solution for my (small) problem?

- Werner -

BTW: I'm running PostgreSQL V 6.5.1

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Werner Modenbach         modenbach@alc.de
ALC Computertechnik GmbH     http://www.alc.de