本文介绍了MySQL中的动态交叉表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有下表,其中包含以下数据
I have the following table with the following data
Year | Age Group | Male | Female
2000 | 0 - 25 | 50 | 100
2000 | 26 above | 40 | 75
2001 | 0 - 25 | 150 | 86
2001 | 26 above | 65 | 83
我想以以下格式创建交叉表
I would like to create a cross tab in the following format
| Male | Female
2000 | 90 | 175
0 - 25 | 50 | 100
26 above | 40 | 75
2001 | 215 | 169
0 - 25 | 150 | 86
26 above | 65 | 83
非常感谢您的协助.
推荐答案
select * from
(
select year,ageGroup,male,female from t
union all
select year,'' ageGroup,sum(male) male,sum(female) female
from t group by year
) st
order by year,agegroup
这篇关于MySQL中的动态交叉表的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!