Computer Science New GCSE Spec

Hello,

I've been trying to find a Computer Science AQA 9-1 revision book for a tedious amount of time

There is only one book I've found but I'm not sure if its up to date, as the
description reads "developed for the 2016 GCSE Computer Science
qualifications". Should I have been looking for the 2017 ones?

Also, we are currently studying databases in school and I cannot see this subject anywhere in the contents of the book. My friend has a CGP book and his content is in the same order as our learning in school. This book is different.

This book looks perfect as all over books ive come across have got something which has deterred me, so id really love if this book was up to date

The specification is http://www.aqa.org.uk/subjects/computer-science-and-it/gcse/computer-science-4512/spec-at-a-glance

And the book https://www.amazon.co.uk/GCSE-Computer-Science-Student-Book/dp/1316504042/ref=sr_1_6?ie=UTF8&qid=1480707776&sr=8-6&keywords=aqa+computer+gcse

Please can someone confirm if the book is up to date and for the correct specification?

Thank you