SELECT user.name, user.subject
FROM user
INNER JOIN (
SELECT name, COUNT(1) AS occurrences
FROM user
GROUP BY name
) AS user_occurrences
ON user.name = user_occurrences.name
ORDER BY user_occurrences.occurrences DESC, user.name ASC, user.subject ASC
LIMIT 4
संपादित करें आपके द्वारा उपयोग किए जा रहे RDBMS और डेटासेट के आकार के आधार पर यह बेहतर प्रदर्शन कर सकता है। दोनों को आजमाएं और तुलना करें।
SELECT user.name, user.subject FROM user INNER JOIN user AS user_occurrences ON user.name = user_occurrences.name GROUP BY user.name --, user.subject Second GROUP BY not needed on MySQL, but it should logically be there ORDER BY COUNT(user_occurrences.subject) DESC, user.name ASC, user.subject ASC LIMIT 4