做一個查詢，以獲得數據行中排名前3的user_id id？

Question

我想做一個查詢，我得到前3名撰稿人，即他們寫了最多的頁面/帖子。我會通過與每行關聯的用戶的session_id選擇數據，即他們寫入的頁面。我想選擇並排列數據庫中行數最多的前3名。我如何查詢這個？我在想......

SELECT DISTINCT user_id 
FROM music_spot 
WHERE (need a condition here) 
ORDER BY (the person who contributed the most pages to the third 
LIMIT 3 

我怎麼會做這樣的事情？謝謝。

Answer 1

SELECT user_id 
FROM music_spot 
WHERE session_id = 123 
ORDER BY count(user_id) desc 
group by user_id 
LIMIT 3 

Answer 2

SELECT user_id, COUNT(post_id) 
FROM music_spot 
GROUP BY UserID 
ORDER BY COUNT(user_id) DESC 
LIMIT 0,3 

Answer 3

SELECT user_id, COUNT(row_id) 
FROM music_spot 
GROUP BY user_id 
ORDER BY COUNT(user_id) DESC 
LIMIT 0,3