加入与案件查询

Question

在我的查询我要检查三个条件及加盟，其中common..but一些错误在这

select 
count(case when interview_status = 1 then applicant_id else null end) as selected, 
count(case when interview_status = 2 then applicant_id else null end) as rejected, 
count(case when interview_status = 3 then applicant_id else null end) as not_attented, 
JOIN appointment ON appointment.applicant_id=student_application.applicant_id, 
WHERE filter_status=1 AND appointment_status !=0 
from student_application; 

但是这显示了一些错误

Answer 1

1. 我看到了问题额外,。

2. from条款应前where

   select 
   count(case when interview_status = 1 then applicant_id else null end) as selected, 
   count(case when filter_status = 2 then applicant_id else null end) as rejected, 
   COUNT(CASE WHEN FILTER_STATUS = 2 THEN APPLICANT_ID ELSE NULL END) AS NOT_ATTENTED 
   from student_application 
   JOIN appointment ON appointment.applicant_id=student_application.applicant_id 
   WHERE FILTER_STATUS=1 AND APPOINTMENT_STATUS !=0;