Question

I’m drawing a huge blank on something I’m sure I’ve done before, and is probably simple.
Alas, I’m going to ask for assistance anyways.

I have 2 tables:
tbl_admins_groups
tbl_admins

I’m pulling a query on the just the admin group table:

SELECT groupid, groupname, groupdesc FROM tbl_admins_groups

And now I’d like to add another column that counts the number of admin records associated to that groupid.

Here’s my attempt:

SELECT g.groupid, g.groupname, g.groupdesc, COUNT(a.adminid) AS `admincount`
FROM `tbl_admins_groups` g, `tbl_admins` a
WHERE g.groupid = a.groupid
AND a.adminstatus = 1 
GROUP BY g.groupid 

For some reason I’m getting just one result back.
Is my GROUP BY incorrect?

Answer 1

You can get their COUNT inside subquery and join it with tbl_admins_groups

SELECT g.groupid, g.groupname, g.groupdesc,
        a.totalCount
FROM   tbl_admins_groups g
       LEFT JOIN 
       (
            SELECT groupid, COUNT(*) totalCount
            FROM tbl_admins
            WHERE adminstatus = 1
            GROUP BY groupid
       ) a
            ON g.groupid = a.groupid