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关于Mysql数据表行转列

【字号: 日期:2022-06-13 14:39:16浏览:23作者:猪猪

问题描述

问题解答

回答1:

试试下面的语句:

select team_name,sum(if(score=’正’,1,0)) as’正’,sum(if(score=’负’,1,0)) as ’负’ from teamscore group by team_name;回答2:

应该是:

SELECT team_name, count(*) AS win WHERE score = ’正’ GROUP BY team_nameSELECT team_name, count(*) AS loss WHERE score = ’负’ GROUP BY team_name

再想办法把这两个结果合起来。

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