Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Databases

Colby Wise
Colby Wise
3,165 Points
Posted by Colby Wise
Colby Wise
3,165 Points

Challenge Q3: What does it mean by *reference the "t_genres" "pk_id".*

I feel like i'm close but I don't understand the question fully. Any help?

ALTER TABLE t_movies 
ADD COLUMN fk_genre_id INTEGER, 
ADD CONSTRAINT FOREIGN KEY (t_genres)
REFERENCES t_genres(pk_id);

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

:point_right: Yes, you're really close.

But the name of the foreign key should be the same as the column you are adding, "fk_genre_id" (not "t_genres").

Colby Wise
Colby Wise
3,165 Points
Colby Wise
Colby Wise
3,165 Points

Many thanks! Got it!!