select m.FirstName,m.lastname,
(select count(*)
from loanhist as l
where (l.member_no=m.member_no
or l.member_no in
(select j.member_no
 from juvenile as j
 where j.adult_member_no=m.member_no))
 and year(l.in_date)=2001 and month(l.in_date)=12) as il_ksiazek
from member as m
inner join adult as a
on a.member_no=m.member_no