INNER JOIN到多個表

Question

我有四個表

student 
------- 
id, int 
firstName, varchar 
lastName, varchar 

course 
------ 
id, int 
name, varchar 

semester 
-------- 
id, int 
name, varchar 

mark 
---- 
studentId, int 
courseId, int 
semesterId, int 
mark, int 

我想要做一個SQL查詢retrives firstName，lastName，courseName，semesterName和mark在mark表的每一行。

我試着用INNER JOIN做，但是我不能爲多個表做INNER JOIN。

該代碼我到達最後

select student.firstName, student.lastName, course.name, semester.name, mark.mark 
from mark 
INNER JOIN student ON student.id = mark.studentId 
INNER JOIN course ON course.id = mark.courseId 
INNER JOIN semester ON semester.id = mark.semesterId 

Answer 1

在微軟的Access，你必須在查詢中包括括號中有多個聯接：

select st.firstName, st.lastName, c.name, sm.name, m.mark 
from (((mark m 
     INNER JOIN student st ON st.id = m.studentId) 
     INNER JOIN course c ON c.id = m.courseId) 
     INNER JOIN semester sm ON sm.id = m.semesterId) 

Answer 2

嘗試THETA式聯接：

select student.firstName, student.lastName, course.name, semester.name, mark.mark 
from mark, student ,course, semester 
WHERE student.id = mark.studentId AND course.id = mark.courseId AND semester.id = mark.semesterId