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Development Tools Database Foundations Joining Relational Data Between Tables in SQL Joining Tables and Aliasing

Angelos Bolovinos
Angelos Bolovinos
3,958 Points

INNER JOIN

SELECT movies.title, movies.genre_id, genres.id, genres.name FROM movies INNER JOIN genres ON movies.title = genres.name;

Hi this my code. Where are the mistakes in syntax?

2 Answers

Ken Alger
STAFF
Ken Alger
Treehouse Teacher

Angelos;

Task 1

We have a 'movies' table with a 'title' and 'genre_id' column and a 'genres' table has an 'id' and 'name' column. Use an INNER JOIN to join the 'movies' and 'genres' tables together only selecting the movie 'title' first and the genre 'name' second.

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Wow, right? What does all that mean? Basically we need to SELECT specific columns (movies.title and genres.name) FROM a table (movies) and INNER JOIN them to another table (genres) ON specific id matching a value (movies.genre_id and genres.id).

SELECT movies.title, genres.name FROM movies INNER JOIN genres ON movies.genre_id = genres.id;

Does that make any sense? Post back if you are still stuck or have further questions.

Happy coding,
Ken