我的表是users和job_post
用户表:
id_user
name
contactno
address
designation
Job_post:
id_jobpost
jobtitle
location
如何仅在特定人员指定匹配的职称中计算推荐的工作
我将尝试加入查询:我的连接查询将发生致命错误:选择users.firstname,users.designation,job_post.jobtitle来自用户Inner Join job_post On users.designation ='$ _SESSION [id_user]';
以下是您所需要的 -
select t1.designation, count(*)
from users t1 inner join job_post t2 on t1.designation=t2.job_title
-- where t1.desgination='PHP DEVELOPER'
group by t1.designation;