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

Álvaro Massana
Álvaro Massana
14,142 Points

Challenge Task 1

I'm stuck at the first task of the challenge...

What they ask: "Create a genres table called "t_genres" with an auto incrementing primary key called "pk_id" and a unique column called "uk_name" that can't be null. The "uk_name" is a varchar of up to 45 characters."

What I did:

CREATE TABLE t_genres(pk_id AUTO_INCREMENT PRIMARY KEY, uk_name VARCHAR(45) UNIQUE NOT NULL)

The error message says: " Bummer! You're missing the PRIMARY KEY of 'pk_id'."

Do you see what I'm doing wrong?

Thank you in advance for your help.

2 Answers

Jeremy Faith
PLUS
Jeremy Faith
Courses Plus Student 56,696 Points

You need to declare the PRIMARY KEY type, which is INTEGER. So add INTEGER after pk_id and you should be fine.

Álvaro Massana
Álvaro Massana
14,142 Points

Great, it worked! Thank you!