Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.

QUESTION

I have a question about SQL script command.

I have a question about SQL script command.

In order to list all publisher IDs that have published books (only included publishers that HAVE published a book) and each publisher ID should be displayed only once,

what command should I use?

Also the column header should be "Publisher ID"

I think I need to use 'unique' command.

Please help!

Show more
LEARN MORE EFFECTIVELY AND GET BETTER GRADES!
Ask a Question