[英]How to transform results of an sql query to an html table with specific format
I am trying to create some statistics for a library reservation system. 我正在尝试为图书馆预订系统创建一些统计信息。 The result of my sql query looks like the following structure. 我的sql查询的结果看起来像以下结构。
total_no_students| department | property | month 241 | Physics | undergraduate | Nov 236 | Physics | undergraduate | Dec 254 | Physics | postgraduate | Nov 210 | Physics | postgraduate | Dec 193 | Architecture| undergraduate | Nov 181 | Architecture| undergraduate | Dec 127 | Architecture| postgraduate | Nov 292 | Architecture| postgraduate | Dec 134 | Biology | undergraduate | Nov 188 | Biology | undergraduate | Dec 129 | Biology | postgraduate | Nov 219 | Biology | postgraduate | Dec
I am trying using php to write some code in order to create a statistics table with the following appearance: 我正在尝试使用php编写一些代码,以创建具有以下外观的统计信息表:
|Physics-undergrad|Physics-postgrad|Architecture-undergrad|Architecture-postgrad| Nov | 241 | 254 | 193 | 127 | Dec | 236 | 210 | 181 | 292 |
Any help how to trasform the query using php to the above table? 对使用php将查询转换为上表有帮助吗? Thanks a lot! 非常感谢!
Try this: 尝试这个:
SELECT A.month,
SUM(CASE WHEN A.department = 'Physics' AND A.property = 'undergraduate' THEN A.total_no_students ELSE 0 END) AS Physics_undergraduate,
SUM(CASE WHEN A.department = 'Physics' AND A.property = 'postgraduate' THEN A.total_no_students ELSE 0 END) AS Physics_postgraduate,
SUM(CASE WHEN A.department = 'Architecture' AND A.property = 'undergraduate' THEN A.total_no_students ELSE 0 END) AS Architecture_undergraduate,
SUM(CASE WHEN A.department = 'Architecture' AND A.property = 'postgraduate' THEN A.total_no_students ELSE 0 END) AS Architecture_postgraduate,
SUM(CASE WHEN A.department = 'Biology' AND A.property = 'undergraduate' THEN A.total_no_students ELSE 0 END) AS Biology_undergraduate,
SUM(CASE WHEN A.department = 'Biology' AND A.property = 'postgraduate' THEN A.total_no_students ELSE 0 END) AS Biology_postgraduate
FROM (...Your Existing Query...) AS A
GROUP BY A.month
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