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php如何输出表格内容比较快捷高效。。

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Release: 2016-06-23 14:21:20
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php如何输出表格内容比较快捷高效。

比如我现在有test表。
里面有id,fenlei,mc
分别代表,id,自动增长,
fenlei,参赛地区
mc,具体的评选参数
id     fenlei    mc
1       北京      卫生好
2       上海      卫生好
3       上海      服务好
4       天津      卫生好
5       天津      服务好
6       北京      服务好
7       上海      卫生好
8       上海      服务好

我想对这个表格做一个统计。。用程序输出如下表格。

我想分别统计


回复讨论(解决方案)

select a.fenlei, count(*), count(*)/(select count(*) from test)*100 as percentage, constitutefrom test a, (select fenlei, group_concat(mc,',',cnt) as constitute from(select fenlei, mc, count(*) as cnt from test group by 1,2) t group by 1) t1where a.fenlei=t1.fenlei group by 1
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数据库设计的太刁了

数据库设计的太刁了

你有什么好的建议。

mc是什么的缩写呀,名称?名次?

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