Question

have an issue with a fairly basic query I’m attempting to write.

select count (p_id) as mycustomer from person where date_active = null;

Which doesn’t work. (runs, but returns 0) However, the below statement does (and returns a number), can anyone help?

select count (p_id) as mycustomer from person wher date_active > '1-MAY-09';

I am trying to find the total number of p_ids in a table that have a date_active as null. (They do exist, I can see them!)
Thanks

Answer 1

I think you need to use:

select count (p_id) as mycustomer from person where date_active is null;