2 fremmednøgler, der refererer til den samme primære nøgle i MySQL

Du skal bruge to joins for at opnå dette.

For eksempel:

select f.friendsID, 
  s1.name as personA_name, 
  s2.name as personB_name
from friends f
  inner join student s1 on s1.sID = f.personA
  inner join student s2 on s2.sID = f.personB