Instruct: Classify a given review as either positive or negative.
Query: Errors all over the place

This book is designed for an entry level person to the SQL language, so there should not be any errors.But that is not the case, errors all over the place, truly not a proffesional book I expected from Oracle press. Dont buy this book, because you dont want to get your foundation on SQL wrong just because some guy thought that is the right way to do things.