Question

I want my calculated field to have a conditional value like this:
if fieldA is 0 then set fieldC to 0
else field C = fieldB / fieldA

How do I do this? Thanks.

And while you are at it, how do I do this in an Access VBA routine so that I can keep on revising my conditions.

Answer 1

In a table definition: not possible.

As a query:

SELECT
  IIF(FieldA = 0; 0; FieldB / FieldA) AS FieldC
FROM
  ATableWithFieldAAndFieldB

As SQL text in VBA: replace the ; with ,