使用mysql select語句從兩個表中堆疊行

Question

我有兩個表，並希望將它們連接在一起，以便我可以一起查詢它們。無論如何，我可以做到這一點？

爲了便於說明，請參閱下圖。

Table Structure

請注意，time_enrolled FOLLOWS兩個表上圖案

Answer 1

試試這個：

Select 
id,name,age,time_enrolled,date_joined, null as occupation from students 
union 
select 
id,name,null as age,time_enrolled,null as date_joined, occupation 
from parents