Question

So here’s the SQL I have

SELECT c.name AS 'name',
  COUNT(sc.condition_id) AS 'conditions_count'
FROM reviews r, strain_conditions sc
LEFT JOIN conditions c ON sc.condition_id = c.id
WHERE sc.strain_id = 1 && sc.review_id = r.id && r.moderated = 1
GROUP BY sc.condition_id
ORDER BY conditions_count DESC
LIMIT 3;

Which returns

+---------------+------------------+
| name          | conditions_count |
+---------------+------------------+
| Fiber Myalgia |                2 |
| Anxiety       |                2 |
| ADHD          |                1 |
+---------------+------------------+

What I need to do is GROUP_CONCAT the name results so my end result is simply

“Fiber Myalgia, Anxiety, ADHD”

Answer 1

Wrap it in a subquery. try this,

SELECT GROUP_CONCAT(f.name) as `name`
FROM
(
    SELECT c.name AS 'name',
           COUNT(sc.condition_id) AS 'conditions_count'
    FROM reviews r, strain_conditions sc
    LEFT JOIN conditions c ON sc.condition_id = c.id
    WHERE sc.strain_id = 1 && sc.review_id = r.id && r.moderated = 1
    GROUP BY sc.condition_id
    ORDER BY conditions_count DESC
    LIMIT 3
) f