我想创建mysql
查询来算我的一些数据,没有WHERE子句,不喜欢:mysql的报告,分析查询
select count(Gender),concat(Gender), Year from sometable where Year = 2015 group by Gender
union
select count(Gender),concat(Gender), Year from sometable where Year = 2016 group by Gender;
而更像是:
select Gender,Year something to count ....
这里是例子:
表我有
---------------
Gender | Year
---------------
Male 2016
Male 2015
Female 2015
Female 2016
---------------
最终的结果是
---------------
2015 | 2016
---------------
Male 1 1
Female 1 1
---------------
会'选择性别,年份,COUNT(*)从表中按性别分组,年份就够了? – Antti29
似乎这篇文章类似于http://stackoverflow.com/questions/1241178/mysql-rows-to-columns.从列值动态创建列是一个问题。我已经给出了一个临时解决方案。检查它是否足够。 –