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Development Tools Database Foundations Joining Relational Data Between Tables in SQL Keys and Auto-Incrementing Values

Posted by STEVE NODINE
STEVE NODINE
2,910 Points

What is wrong with this? Challlenge 3 of 3 ALTER TABLE movies ADD COLUMN genre_id INTEGER NULL, ADD CONSTRAINT FOREIGN

This looks good to me what in heck could be wrong with is

2 Answers

Chris Shearon
Chris Shearon
Courses Plus Student 17,330 Points

There's several typos in your code. REFERNCES should be REFERENCES and gemre_id should be genre_id and the column name should be fk_genre_id. Try this.. 

ALTER TABLE t_movies ADD COLUMN fk_genre_id INTEGER NULL, ADD CONSTRAINT FOREIGN KEY (fk_genre_id) REFERENCES t_genres(pk_id);
STEVE NODINE
STEVE NODINE
2,910 Points

Thanks, I saw the typos for gemres, didn't see the others.

Appreciate the insight!

Chris Shearon
PLUS
Chris Shearon
Courses Plus Student 17,330 Points
Chris Shearon
Chris Shearon
Courses Plus Student 17,330 Points

If you'll post the entire code I'll take a look.

STEVE NODINE
STEVE NODINE
2,910 Points

ALTER TABLE movies ADD COLUMN genre_id INTEGER NULL, ADD CONSTRAINT FOREIGN KEY (gemre_id) REFERNCES gemres(id);