Question

So I have a pretty large Oracle SQL query. I want to add the following logic to my where clause, described in pseudocode below. Is it possible? I want to exclude a record if and only if BOTH columnA and columnB are null. If one or the other is null, that’s okay.

    IF (pfr.columnA && pfr.columnB != NULL)
        exclude record
    ELSE
        do nothing

I tried the below except from my where clause, but obviously it does not accomplish what I need.

AND (pfr.columnA IS NOT NULL AND pfr.columnB IS NOT NULL)

Answer 1

where NOT (pfr.columnA is NULL and pfr.columnB is NULL);