Whenver I attempt to run this I get an error of incorrect syntax on keyword 'ON' -- is it possible to do this in ONE query?
SELECT COUNT(one.ID), one.FirstName, one.LastName, one.CompanyName, one.order_status FROM firstDB one INNER JOIN ( SELECT COUNT(two.ID), two.LastName, two.FirstName, two.CompanyName FROM secondDB two GROUP BY two.LastName, two.FirstName, two.CompanyName HAVING COUNT(two.ID) > 1 ) ON one.CompanyName = two.CompanyName AND one.LastName = two.LastName AND one.FirstName = two.FirstName GROUP BY FirstName, LastName, CompanyName, order_status HAVING COUNT(one.ID)>1 AND one.FirstName IS NOT NULL AND one.LastName IS NOT NULL AND one.CompanyName IS NOT NULL AND one.order_status IS NOT NULL ORDER BY one.LastName