MySQL Insert Into Table From Multiple Tables Using Separate SELECT Queries

Question

I have a table named people_temp_1 that contains:

Name          Age          PersonID
John          25           1
Jane          32           2
Chris                 


        

Answer 1

It's one of the basics of SQL - use join. In your case it's better to use outer join so you won't miss people from people_temp1 who don't have corresponding records in people_temp2:

insert into people(name, age, profession, location)
select
    p1.name,
    p1.age
    p2.profession,
    p2.location
from people_temp1 as p1
    left outer join people_temp2 as p2 on p2.id = p1.person_id