SQL: Syntax error with intersect?

Question

This is my query:

-- Sids of suppliers who supply a green part AND a red part
(SELECT Suppliers.sid
FROM Suppliers
JOIN Catalog ON Catalog.sid = Suppliers.si         


        

Answer 1

I think SQL doesn't support INTERESCT

try this one

SELECT DISTINCT
s.sid
FROM
 suppliers s,
 catalog c
WHERE
 s.sid = c.sid
 AND c.pid IN (SELECT 
 p1.pid
 FROM
 parts p1,
 parts p2
 WHERE
 p1.color = 'red' AND p2.color = 'green');