基于php mysql中的两个参数从三个不同的表中检索数据

Question

这是我试过的：

FragmentPagerAdapter

它仅检索更高阶变量

Answer 1

SELECT  
A.cs_id, 
A.class, 
B.sec_id,
B.cs_name,
C.stud_id,
C.stud_class, 
C.stud_section,
C.stud_adm_no, 
C.stud_full_name 
FROM class_section AS A  
INNER JOIN section_name as B ON A.cs_id=B.cs_id 
INNER JOIN student_detail as C ON C.stud_class=B.sec_id WHERE A.cs_id=1

可能是您的别名问题b B c应为C