[英]Fetching last 30 days data from mysql table and grouping them by date
這是我的桌子的樣子
| total_hit |success_hit | date_time |
| 12 | 12 | 01-11-2009 07:32:44 |
| 12 | 11 | 01-11-2009 08:33:49 |
| 12 | 10 | 01-11-2009 09:08:24 |
| 12 | 11 | 01-12-2009 10:33:57 |
| 12 | 12 | 01-12-2009 11:37:34 |
| 12 | 11 | 01-12-2009 12:23:49 |
我正在使用以下查詢從過去30天的表中獲取數據:
SELECT *
FROM my_table
WHERE DATE(date_time) >= DATE_SUB(CURDATE(), INTERVAL 1 MONTH)
我想要做的是按照日期對返回的數據進行分組,然后計算成功百分比(success_hit/total_hit)*100
Date: 01-11-2009 Percentage: x
Date: 01-12-2009 Percentage: y
有任何想法嗎?
select (success/total)*100 as perc_success, Date(date_time) from
(select sum(success_hit) as success, sum(total_hit) as total,
date_time from my_table
where DATE(date_time) >= DATE_SUB(CURDATE(), INTERVAL 1 MONTH)
group by Date(date_time) )
tbl
這應該工作!!!
嘗試這個
SELECT (sum(success_hit)/sum(total_hit)*100) AS `Percentage`,
DATE(date_time) AS `Date`
FROM my_table
WHERE DATE(date_time) >= DATE_SUB(CURDATE(), INTERVAL 1 MONTH)
GROUP BY DATE(date_time);
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