select s.sname, count(*)
from suppliers s, parts p, catalog c
where p.pid = c.pid and c.sid = s.sid
group by s.sname, s.sid
having every (p.color = 'green')
select s.sname, max(c.cost)
from suppliers s, parts p, catalog c
where p.pid = c.pid and c.sid = s.sid
group by s.sname, s.sid
having some (p.color = 'green') and some (p.color = 'red')
, когда я выполняю два вышеупомянутых запроса, он показывает пропущенную правую скобку.