Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent for beginners

I bought this book as a complete Oracle novice, transitioning from Microsoft T-SQL to PL/SQL. I was worried about the transition being difficult until I read this book.It is one of those very rare books that presents advanced concepts in a context understandable by users of all experience levels. The author often throws in tips about Oracle PL/SQL quirks to watch out for, as well as some very applicable information about how Oracle works internally.I've since become more comfortable with PL/SQL, and the book also serves as a great reference. I highly encourage you to read this book straight through.I recommend this well-written book to anybody wanting to learn PL/SQL, as well as anyone needing a great reference.