MySQL查询建议

Question

我迷失在MySQL文档中。我有票表 - 它有这些列

• ID
• song_id
• user_id说明
• 创建

我找不到将处理信息和输出的查询10在特定时间段内最受欢迎的歌曲。它是什么？

Answer 1

SELECT id, song_id, COUNT(1) AS total 
FROM votes 
WHERE created BETWEEN [user_defined_start_date] AND [user_defined_end_date] 
GROUP BY song_id 
ORDER BY total DESC 
LIMIT 10; 

Answer 2

您究竟如何存储投票？ 将下面[]中的单词替换为所需的变量。

select song_id 
from [table] 
where created > to_date('[the date you want]', '[the format you want]') and created < to_date('[the date you want]', '[the format you want]') 
order by [votes] 
limit 10;