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In this chapter from Oracle PL/SQL by Example, 5th Edition, learn how to make use of variables and the various ways to populate variables. This chapter also covers transactional control in PL/SQL by explaining what it means to commit data as well as how SAVEPOINTs are used.

In this video excerpt from Working with Big Data LiveLessons (Video Training): Infrastructure, Algorithms, and Visualizations, Paul Dix shows you how to copy files up to Hadoop using a StackExchange public data dump as an example.

In this chapter from FileMaker Pro 13 Absolute Beginner's Guide, explore and work with the Filemaker database. You change, add, and delete records; navigate through records and layouts; and much more.

This chapter from Bulletproof Android: Practical Advice for Building Secure Apps looks at how developers have used SQLite and, more importantly, how they have tried to secure that data in progressively more secure ways so you don’t make the same mistakes.

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Blogs

John  Traenkenschuh

Long ago, Traenk read about new attacks, attacks modeled after biological attacks.  Those were viruses; what new comes?

Brad Yale

For most of us, haptic feedback takes two forms - a vibrating phone in your pocket alerting you to an incoming message and key stroke vibrations when typing a text message/playing a game on your smart device. This though, is a shame because as Apple and Google engineers know, haptic feedback could be and should be used for so much more.

Brad Yale

On the level of global commerce, we are addicted to devices. By the start of 2015, it is estimated there will be 3 billion Android devices in circulation around the world. Of those, there are roughly 19,000 distinct devices in operation. On the same accord, there are roughly 550 million active iOS devices globally with another few hundred million being phased out. As a global culture we love our mobile devices. Yet here is the thing, by all measures, our devices aren't all that secure. In both data and physicality, our devices have an operational tendency to betray us. 

This said, a question: what is more worrisome, mobile data security risks or mobile device physical security risks? 


Brad Yale

The Deep Web. The Deepnet. The Invisible Web. The Hidden Web. 

Maybe you have heard of the Deep Web. Maybe you even know how to access the Deep Web. 

Chances are though, you've never heard of the Deep Web and you have no idea how to access it. The Deep Web sounds mysterious, elusive and somewhat dangerous. By all accounts, it is all these things. 

So, what is the deep web? How does the deep web work? How do you access it?

In this installment of "How the Internet Works", we tackle the mysterious Deepnet.   

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