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Databases Creating and Modifying Database Tables Creating and Modifying Database Tables Making Changes to a Database

Troy Erby
Troy Erby
6,332 Points

Trouble inserting Primary Key

The challenge question reads, "Now recreate the MEMBERS table with the new FAVORITE_ROCK_ID column, and make sure it has a foreign key constraint to the ID column of the ROCKS table. The columns should now be: ID, FIRST_NAME, LAST_NAME, and FAVORITE_ROCK_ID.

I wrote the code: CREATE TABLE MEMBERS (ID PRIMARY KEY, FIRST_NAME, LAST_NAME, FAVORITE_ROCK_ID REFERENCES ROCKS(ID))

I keep getting the error message "Make sure you're id only allows unique values. Hint: ID PRIMARY KEY". I thought my syntax for handling that was correct, to simply add "PRIMARY KEY" after the ID. I tried to fix it by adding "PRAGMA FOREIGN KEYS= ON;" in front of my code but received the error message that my code must begin with a "CREATE" statement. What am I missing?

Steven Parker
Steven Parker
229,732 Points

It would help if you show the complete SQL code you are entering.

2 Answers

Steven Parker
Steven Parker
229,732 Points

I pasted your line directly into the challenge and it passed! Try again?

CREATE TABLE MEMBERS (ID PRIMARY KEY, FIRST_NAME, LAST_NAME, FAVORITE_ROCK_ID REFERENCES ROCKS(ID))
Troy Erby
Troy Erby
6,332 Points

Weird. I copied and pasted this exact statement again and continued to get the same error message. Thanks to you I trusted that the code must work so I logged out, logged back in and redid the 1st 2 steps of the challenge and THEN copied and pasted and...Voila. Thanks for the feedback otherwise I'd still be banging my head against the wall looking for a phantom error.

Troy Erby
Troy Erby
6,332 Points

Sorry, I thought the code was automatically copied into the message. I've added it now.