SQL Help - Two group bys

[Leon 13]

Update - Nevermind, worked it out

 

Hi

Quick SQL question...  I'm sure this is easy to those in the know!

I'm running a quick query against some tables and receiving the following results:
 

 

Business | Site | Staff

Insurance | NCL | Steve

Insurance | NCL | Cath

Insurance | MAN | Bob

Billing | MAN | Sarah

Billing | MAN | Tom

Complaints | MAN | Andy

 

 

I want to aggregate this to have the total number of staff rather than the individuals:

 

Billing | MAN | 2

Complaints | MAN | 1

Insurance | MAN | 1

Insurance | NCL | 2

 

 

I've got so far with the query but can't work out how to group both the sites and the staff.  It only works if I simplify to two columns (Site and staff)

 

select
b.name,
s.name,
count(a.staff_id)

from 
staff a,
sites s,
business b

where 
b.bu_id = s.bu_id
and a.site_id = s.site_id

order by b.name, s.name

Edited February 6, 2017 by MiddleAgeCool

[scoobos 298]

first rule of internet question asking for geeks - if you "work it out" then update your post with the solution....

 

I spent 2 mins reading through it !

[Rayvin 5288]

I'd also be interested in your solution.

[scoobos 298]

Lol that makes 2 of us who've wasted time