Question

I have the following table structure in my db (MySQL):

id  group_id    item_id     project_id  user_id

Users can have multiple entries withing the same project. How do I count unique users withing a particular project (minus project owner id)?

SELECT COUNT(user_id) AS cnt
       FROM myTable
       WHERE project_id = $myProject
       AND user_id != 3
       GROUP BY user_id

This looks right but I don’t believe I’m getting the right results. Am I missing something?

Answer 1

Select Count(Distinct user_id)
From MyTable
Where project_id = $myProject
    And user_id != 3