I got 2 tables:
1 Category
- cID
- Name
- Active
2 Products
- pID
- Name
- category_id
- active
This is want i want: I want a list from categories that ONLY have ACTIVE products.
Thanks in advance
SOLUTION: SELECT DISTINCT category.* FROM category INNER JOIN products ON category.id = products.c_id WHERE products.active = 0 ORDER BY category.id DESC
I'd suggest construction like this
IMHO, it's syntax shows what you really want to see - all categories that have active products
select C.cID, C.Name, C.Active
from Category as C
where C.cID in (select distinct T.category_id from Products as T where T.Active = 1)
SELECT * FROM Products
Join Category on Category.ciD = Products.category_id
WHERE Category.Active = 1 AND Products.Active =1
This is assuming your active columns are just 1 or 0. Otherwise adjust according to what values you're storing there.
Assume Products.Active = 1 means active state.
SELECT c.*
FROM Category c
INNER JOIN Products p ON c.CID = p.category_id
GROUP BY c.CID
HAVING COUNT(*) = SUM(IF(p.Active = 1, 1, 0))