Question

I am trying to exclude rows in my table based on the id’s in other tables.
I have 2 tables of which a “select * from” results in a set like (1,2,3)

I am trying to combine the results from these 2 subqueries into one, like:

(1,2,3) + (4,5) = (1,2,3,4,5)

So I can filter the big table with a “NOT IN (1,2,3,4,5)”

I have been looking at GROUP_CONCAT’s, UNION and all other kinds, but I can’t seem to find something that actually works.

Anyone have a idea?

Answer 1

select *
from Table3 
where id not in (
    select id from Table1 --your subquery that returns 1,2,3
    union all
    select id from Table2 --your subquery that returns 4,5
)