How to query more than one table
Creating JOINs
Referencing columns
Let's practice
Instruction
Splendid! Now, let's say we only need a few columns in our result. We just want to know the model of the car and the owner's name, Take a look:
SELECT person.name, car.model FROM person JOIN car ON person.id = car.owner_id;
Simple, isn't it? Instead of the asterisk (*), we put the column names.
As we now have more than one table, we put the table name in front of the column name and we separate them with a dot (.). In this way, SQL knows that the column model belongs to the table car, etc.
Exercise
Select director name and movie title from tables movie and director in such a way that a movie is shown together with its director.
Stuck? Here's a hint!
Type:
SELECT movie.title, director.name FROM movie JOIN director ON movie.director_id = director.id;
