user表:
多个count统计sql语句
selectcount(case when sex ='男' then 1 end) as man,count(case when sex ='女' then 1 end) as woman,count(case when age>=18 then 1 end) as adult,count(case when age<18 then 1 end) as nonagefrom user
可根据自己的业务更改when后面的条件
查询结果:



















