If I understand the tables correctly (and I may not), each entries
row may reference multiple votes
rows. In that case, the query you need will go something like this:
SELECT
entries.page_id,
COUNT(*) AS VoteCount
FROM entries
INNER JOIN votes ON entries.media_id = votes.media_id
GROUP BY entries.page_id
ORDER BY VoteCount
If you add additional entries
columns to the SELECT
list, be sure to add them to the GROUP BY
list as well.
Addendum: @JuanPabloCalifano pointed out, correctly, that this query won't include entries with zero votes. Here's how to include them:
SELECT
entries.page_id,
COALESCE(COUNT(votes.id), 0) AS VoteCount
FROM entries
LEFT JOIN votes ON entries.media_id = votes.media_id
GROUP BY entries.page_id
ORDER BY VoteCount