Question

I have a hopefully pretty simple question here. I’m converting some Access SQL script into Server Management Studio 2008.

Currently the Access script shows the following line of code:

IIf([rsosourceID]) IN (254,360,446),"MoneySavingExpert" as SourceName

Basically it’s creating a temporary table with four columns, if the fields match say those 3 numbers on the left then it will populate a fourth column with their new name. (To be used for grouping in a later report)

How can I do something simillar in SQL? I’ve tried using a Case statement but to my knowledge that will only alter the field you’re looking against.

In this case I need to look at one field then using it’s results alter another, any ideas?

Answer 1

A case statement can return a new column using the value of any other column(s):

SELECT rsoSourceID,
    rsoDescription, 
    rsoCategory,
    case when rsoSourceID in (254,360,446)
        then 'MoneySavingExpert'
        else null end as SourceName
FROM TableName