使用城市和配置文件名称计算给定查询

Question

select b.ProfileName,c.City from tblJobs as a 
inner join tblProfile as b on b.ID = a.ProfileID
inner join tblCity as c on c.CityID = a.CityID

O / P

Profile Name        City

Gym Manager         Mumbai  
Personal Trainer    Mumbai  
Personal Trainer    Mumbai  
Personal Trainer    Bengaluru  

Answer 1

似乎你所缺少的只是一个group by条款和对count的调用：

SELECT     b.ProfileName, c.City, COUNT(*)
FROM       tblJobs AS a 
INNER JOIN tblProfile AS b ON b.ID = a.ProfileID
INNER JOIN tblCity AS c ON c.CityID = a.CityID
GROUP BY   b.ProfileName, c.City