Question

Using a derived value in a MySQL WHERE clause doesn’t work. Is there a way to simulate this behavior? Below is an example query that fails because of the WHERE count > 5 line:

SELECT
    title,
    company_id,
    count( id ) as count
FROM
    table
WHERE
    count > 5
GROUP BY
    title,
    company_id

Answer 1

Aggregates cannot be used in WHERE, but rather in HAVING. And you will need to add a GROUP BY clause.

SELECT
    title,
    company_id,
    count( id ) as count
FROM
    table
GROUP BY title, company_id
HAVING count > 5