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SQL Help - Two group bys


Leon
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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 by MiddleAgeCool
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