Oracle 12C For Dummies
Author: Chris Ruel 
Published: October 24, 2013 
Publisher: Wiley 
ISBN: 9781118745311 
Format: Retail PDF
Reader Required: Adobe Reader, Adobe Digital Editions

There's a cheat sheet and a couple of articles online (link in book) with no registration required. Tested on the above readers with no problems. Please allow a couple seconds for the seedboxes to kick in, then it should move pretty quick.
Enjoy! :D
___________________________________________________________________________________

Demystifying the power of the Oracle 12c database

The Oracle database is the industry-leading relational database management system (RDMS) used from small companies to the worldΓÇÖs largest enterprises alike for their most critical business and analytical processing. Oracle 12c includes industry leading enhancements to enable cloud computing and empowers users to manage both Big Data and traditional data structures faster and cheaper than ever before. Oracle 12c For Dummies is the perfect guide for a novice database administrator or an Oracle DBA who is new to Oracle 12c. The book covers what you need to know about Oracle 12c architecture, software tools, and how to successfully manage Oracle databases in the real world.

-Highlights the important features of Oracle 12c
-Explains how to create, populate, protect, tune, and troubleshoot a new Oracle database
-Covers advanced Oracle 12c technologies including Oracle MultitenantΓÇöthe "pluggable database" conceptΓÇöas well as several other key changes in this release
-Make the most of Oracle 12c's improved efficiency, stronger security, and simplified management capabilities with Oracle 12c For Dummies.