Mysql group post_id 按最大计数状态

Question

你好，我有一个 mysql 查询，它会根据状态的最大计数返回 post_id，它当前显示的结果是

POST_ID

    3

Mysql 表:

(`post_id`, `user_id`, `status`, `date_created`)
(2, 2, 'funny', 20121022120627)
(2, 3, 'lame', 20121023120627)
(3, 1, 'useful', 20121023120627)
(3, 3, 'lame', 20121023120627)
(3, 4, 'useful', 20121023120627)
(4, 4, 'useful', 20121024120627)

但我需要的结果是，按 desc 顺序显示从最大到最小的计数。如果 2 个结果具有相同的数字，那么顶部结果将基于最新的 date_created 类似这样

POST_ID

     3
     2
     4

我当前的查询是

SELECT post_id
FROM tableName
GROUP BY post_ID
HAVING COUNT(*) = 
(
    SELECT MAX(x.counts)
    FROM
    (
        SELECT post_id, COUNT(*) counts
        FROM tableName
        GROUP BY post_id
    ) x
)

示例可以在 SQLFiddle SQLFiddle 上找到

Answer 1

But the result i need is, to display the count from max to min on desc order.if 2 result having same number, then the top result will be based on the latest date_created.

您需要像这样ORDER BY COUNT(*) DESC, date_created DESC:

SELECT post_id
FROM tableName
GROUP BY post_ID
HAVING COUNT(*) = 
(
    SELECT MAX(x.counts)
    FROM
    (
        SELECT post_id, COUNT(*) counts
        FROM tableName
        GROUP BY post_id
    ) x
)
ORDER BY COUNT(*) DESC, date_created DESC

更新 1

试试这个，

SELECT post_id
FROM tableName
GROUP BY post_ID
ORDER BY  COUNT(*) DESC, MAX(`date_created`) DESC

Updated SQL Fiddle Demo