Question

I have 2 tables A, B like this:

A.id
A.created
----
B.id
B.data
B.aId

I want to select all B.data that meet the following criteria:

• A.created not null
• B.aId = A.id

My understanding is that I could solve this by using subqueries, but I suspect it ‘s a case for a JOIN statement. If so, I ‘d really like to see how it ‘s done 🙂

Thanks!

Answer 1

select *
from A
join B on A.id = B.aId
where A.created is not null