select d.did,isnull(sum(a.yellowwarning),0) yellows,
isnull(sum(a.redwarning)*(-1),0) reds
from department d left join SYS_USER u on d.did=u.depid
left join (select * from approveInfo where datediff(
year,'2014-1-8',yujingtime)=0) a on a.userId=u.UIDF
group by d.did
isnull(sum(a.redwarning)*(-1),0) reds
from department d left join SYS_USER u on d.did=u.depid
left join (select * from approveInfo where datediff(
year,'2014-1-8',yujingtime)=0) a on a.userId=u.UIDF
group by d.did
