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MySql按指定天数进行分组数据统计分析 1_MySQL

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Release： 2016-06-01 13:17:43
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这几天，在做数据统计，在对数据库数据进行统计过程中，有个需求就是要按照指定天数进行分组，

 

之前一直没有找到好的方法，就先取出数据，在程序中进行分组。

 

后发现，可以在SQL语句中实现按天数分组。

 

例：

 指定天数11天进行分组统计，例子中加上YEAR(date)* 1000，是为了区分年份

 

 1 SELECT 2     job_id, 3     SUM(`count`)AS total, 4     COUNT(job_id)AS countNum, 5     ( 6         YEAR(date)* 1000 + DAYOFYEAR(date) p 11 7     )AS groupNum 8 FROM 9     job_logs10 WHERE11     job_id = 112 GROUP BY13     groupNum
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