如何根據特定時期的聲譽來選擇用戶？

Question

這裏是我的表結構：

-- users 
+----+--------+--------------------+ 
| id | name | other columns ... 
+----+--------+--------------------+ 

-- votes 
+----+---------+---------+-------+------------+ 
| id | user_id | post_id | value | date_time | 
+----+---------+---------+-------+------------+ 
| 1 | 234234 | 3443 | 1  | 1442684886 | -- For example 
+----+---------+---------+-------+------------+ 

我想在上週選擇前20名用戶。我怎樣才能做到這一點？

---

這裏是我當前的查詢：

SELECT SUM(v.value) score , u.* 
FROM users u 
INNER JOIN votes 
ON u.id = v.user_id 
WHERE v.date_time > UNIX_TIMESTAMP(now() - INTERVAL 1 week) 
ORDER BY score DESC 
LIMIT 20; 

但我的查詢返回只有一行。

Answer 1

Select sum(value) 
FROM users JOIN votes 
ON u.id = v.user_id 
WHERE v.date_time > UNIX_TIMESTAMP(now() - INTERVAL 1 week) 
GROUP BY name 
ORDER BY sum(value) DESC 
LIMIT 20;