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By Benjamin Rosenzweig, Elena Rakhimov
Mar 4, 2015
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.
Working with Data Models in MongoDB
By Jesse Smith
Mar 4, 2015
Jesse Smith shows you how data models work in MongoDB and how they differ from relational databases.
Video: Working with Big Data: How to Write Data Into the Hadoop File System
By Paul Dix
Mar 3, 2015
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.
Get to Know Your Amazon Fire Phone
By Lonzell Watson
Mar 2, 2015
In this chapter from My Amazon Fire Phone, you learn about the external and internal features of the Amazon Fire phone and the basics of getting started.
Scanning Barcodes Using the AV Foundation Framework
By Wei-Meng Lee
Mar 2, 2015
In addition to playing video and audio files, the iOS 7 AV Foundation Framework APIs let you use your iOS device's camera for scanning. Wei-Meng Lee shows how to create an application to scan barcodes.
Taking and Editing Pictures with Your Android Tablet
By Craig James Johnston
Feb 27, 2015
In this chapter from My Android Tablet, you learn how to take pictures with your Android tablet, how to store them, and how to share them with friends.
Four Key Mistakes Organizations Make in Enterprise Security
By Diana L. Burley
Feb 26, 2015
If recent data breaches at major organizations left you feeling a little exposed, you're right to be alarmed. Most places aren't really as protected against intrusion as they think. Diana L. Burley, Ph.D., co-author of Enterprise Software Security: A Confluence of Disciplines, points out ways in which organizations unknowingly leave themselves open to security breaches, and what to do about it.
Video: Python Guide for the Total Beginner: How to Group Items in Lists
By Katie Cunningham
Feb 26, 2015
In this excerpt from Python Guide for the Total Beginner LiveLessons (Video Training), Katie Cunningham shows you how to group items into lists in Python.
Performing CRUD Operations with MongoDB
By Jesse Smith
Feb 25, 2015
Jesse Smith shows you how Create, Read, Update, and Delete (CRUD) operations with MongoDB are easy using Mongo Query methods with JSON-like syntax.
The MMIX Supplement to The Art of Computer Programming: Programming Techniques
By Martin Ruckert
Feb 25, 2015
In this excerpt from The MMIX Supplement: Supplement to The Art of Computer Programming Volumes 1, 2, 3 by Donald E. Knuth, Martin Ruckert discusses various programming techniques, including index variables, fields, relative addresses, bit stuffing, loop unrolling, subroutines, and reporting errors.
Video: Java Performance: Tune the HotSpot JVM Step-by-Step
By Charlie Hunt
Feb 24, 2015
In this video excerpt from Java Performance LiveLessons (Video Training), Charlie Hunt describes a high level step-by-step JVM tuning process that you can use to tune the Java Virtual Machine.
Universal Windows Apps with XAML and C# Unleashed: Threading, Windows, and Pages
By Adam Nathan
Feb 23, 2015
This chapter from Universal Windows Apps with XAML and C# Unleashed begins by examining a very important topic, although one that many developers take for granted: the threading model for universal apps. This background is especially helpful for the advanced feature of writing an app that displays multiple windows, which is the second topic in this chapter. The third and final topic—navigating between a window’s pages—is a feature leveraged by just about every real-world app.
So You Want to Start a Technical Blog
By Thursday Bram
Feb 20, 2015
Everybody’s doing it. And by “it,” we mean blogging. You know you want to. You’ve got something to say and people need to hear it. Follow these down-to-earth tips and tricks about getting your feet wet in the world of technology blogs.
Video: Spring Framework Tutorial: How to Use Bean Lifecycle Callbacks
By Josh Long
Feb 19, 2015
In this excerpt from Spring Framework LiveLessons (Video Training), Josh Long shows you how to use bean lifecycle callbacks, including the initializing bean interface, the disposable bean interface, @PostConstruct and @PostDestroy methods, and the smart lifecycle interface.
Argument Passing in Ruby
By Peter J. Jones
Feb 18, 2015
How does Ruby pass objects to methods? How do actual arguments get mapped into formal arguments? Peter J. Jones, author of Effective Ruby: 48 Specific Ways to Write Better Ruby, examines all sides of the great 'call-by-value or call-by-reference' argument-passing debate.
Style Guide for The MMIX Supplement: Supplement to The Art of Computer Programming Volumes 1, 2, 3 by Donald E. Knuth
By Martin Ruckert
Feb 18, 2015
Martin Ruckert, author of The MMIX Supplement: Supplement to The Art of Computer Programming Volumes 1, 2, 3 by Donald E. Knuth , offers a programming style guide, covering names, temporaries, index variables, register numbers, local name spaces, and instruction counts.
Video: Writing a Multistep MapReduce Job Using the mrjob Python Library
By Michael Manoochehri
Feb 17, 2015
In this video excerpt from Data Just Right LiveLessons (Video Training), Michael Manoochehri shows you how mrjob makes it really easy to run Hadoop streaming API jobs on Python.
A Brief Tour of C# 6.0
By Bill Wagner
Feb 16, 2015
Are you eager for the release of C# 6.0? Bill Wagner is! The author of Effective C#: 50 Specific Ways to Improve Your C#, Second Edition discusses a few of his favorite new features, including some that you probably thought were already in the code, and other pleasant surprises.
From Mathematics to Generic Programming: An Interview with Alexander Stepanov and Daniel Rose
By John Lakos, Alexander A. Stepanov, Daniel E. Rose
Feb 16, 2015
John Lakos interviews Alexander Stepanov and Daniel Rose, authors of From Mathematics to Generic Programming, on their new book, why it applies to everyday programmers, and their positions on some closely related technical issues — including value semantics, concepts, contracts, and polymorphic memory resources — facing the C++ Standards Committee today.
Interfaces and Lambda Expressions in Java
By Cay S. Horstmann
Feb 16, 2015
In this chapter from Core Java for the Impatient, you will learn about interfaces and lambda expressions, including static and default methods, method and constructor references, processing lambda expressions, variable scope, higher-order functions, and local inner classes.

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