Join multiple columns from one table to single column from another table

Question

I\'m trying to learn how to join multiple columns from one table to a single column from another table.

This is my table structure in its simplest form:

Answer 1

You need to join twice:

SELECT t1.team_name as team1, t2.team_name as team2, trades.team_t, trades.team_2 
FROM teams t1, teams t2, trades 
WHERE t1.id = trades.team_1 and t2.id = trades.team_2