如何添加來自不同行的數據並將它們顯示爲sql查詢中的一行的列

Question

我是SQL查詢字段中的新成員，但我可以執行一些查詢。我想在表格行中添加相關數據並將它們顯示在同一列中。下面是包含數據的表：

任何幫助將不勝感激。在此先感謝

Answer 1

如果實際上只有3個問題，並假設表被評爲學生，你可以做這樣的事情：

select studentid AS Student, 
(select Questionpoints from Student where studentid = a.studentid and Questionid = 8) AS Qn1, 
(select Questionpoints from Student where studentid = a.studentid and Questionid = 9) AS Qn2, 
(select Questionpoints from Student where studentid = a.studentid and Questionid = 10) AS Qn3 
from Student as a 
group by studentid;