Is it possible to group by column via join?

Question

select tc.UIDPK,
count(torder.status) as total
from TCUSTOMER tc
inner join TORDER torder on tc.UIDPK=torder.CUSTOMER_UID
where tc.UIDPK=490000;

The above query works fine for me. But the status can be IN_PROGRESS, FAILED, ON_HOLD

How do I write a query that returns a status count like tc.UIDPK, total orders, IN_PROGRESS orders, total orders-IN_PROGRESS orders. I tried the below but didn't work

select tc.UIDPK,
count(torder.status) as total,
count(torder2.status) as inprogress,
count(torder.status)-count(torder2.status) as remaining
from TCUSTOMER tc
inner join TORDER torder on tc.UIDPK=torder.CUSTOMER_UID
left join TORDER torder2 on tc.UIDPK=torder2.CUSTOMER_UID and torder2.status in('IN_PROGRESS')
where tc.UIDPK=490000;

Answer 1

No need to connect multiple times, use SUM.

try

select tc.UIDPK,
       COUNT(torder.status) as total,
       SUM(torder.status = 'IN_PROGRESS') as inprogress,
       COUNT(torder.status) - SUM(torder.status = 'IN_PROGRESS') as remaining
from TCUSTOMER tc
inner join TORDER torder on tc.UIDPK=torder.CUSTOMER_UID
where tc.UIDPK=490000
group by tc.UIDPK;