Advanced Oracle PL/Sql: Programming With Packages

Product Description
Steven Feuerstein’s first book, Oracle PL/SQL Programming, has become the classic reference to PL/SQL, Oracle’s procedural extension to its SQL language. His new book looks thoroughly at one especially advanced and powerful part of the PL/SQL language — the package. The use of packages can dramatically improve your programming productivity and code quality, while preparing you for object-oriented development in Oracle technology. In this book, Feuerstein explains how to construct packages — and how to build them the right way. His “best practices” for building packages will transform the way you write packages and help you get the most out of the powerful, but often poorly understood, PL/SQL language. Much more than a book, Advanced Oracle PL/SQL Programming with Packages comes with a PC diskette containing a full-use software companion. Developed by Feuerstein, RevealNet’s PL/Vision Lite is the first of its kind for PL/SQL developers: . . . More >>

Advanced Oracle Pl/Sql: Programming With Packages

Advanced C++ Tutorials 1 : Vectors & Physics : Convert Polar to Cartesian


A helpful way to learn c++, and to understand how to program physics in programming. Part 1 of this tutorials goes over the setup of the vector class, and we make a function for converting polar coords, to cartesian.

Exam Bible 1Z0-146 Oracle 11G: Advanced Pl/sql

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With Oracle 1Z0-146 questions and answers you will be able to reshape your future goals with these powerful Oracle questions and answers, including explanations, demonstrating the correct value after answering.1Z0-146 is that we engineers elaborate exam, in the real exam questions exactly the same can be said that our exam questions are a wide range of users of this praise, use our item bank customers are endorsing our exam.

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Advanced PHP Programming: Developing Large-scale Web Applications with PHP 5

Product Description
While there are many books on learning PHP and developing small applications with it, there is a lack of information on “scaling” PHP for large-scale, business-critical systems. PHP is now starting to make inroads into large-scale business-critical Web systems. The introduction of PHP 5 two years ago brought enterprise-grade capabilities to PHP — capabilities that have been expanded upon and solidified with the subsequent release of PHP 5.1. Schlossnagle’s Advanced… More >>

Advanced Php Programming: Developing Large-scale Web Applications With Php 5

Asymmetric Cryptography in Java

Security plays a significant role in our day to day life. So far software applications are concerned, security of data is required for authentication and for several validations. Normally while developing the applications, we use the concept of cryptography for password encryption and decryption. Some applications require more security, so they go for high end security system like trusted security certificates. The security mainly focuses on the integrity of the data at the several ends.

Technicalities For data security Java Cryptography provides a suitable framework to implement several kinds of cryptography. However there are basically two types of cryptography. Once is Symmetric Cryptography and Asymmetric Cryptography. When both the ends communicate the secured data with a common key for encryption and decryption, it is called the Symmetric Cryptography. In this case a shared key is used by both the parties to encrypt and decrypt the data. However there is a problem relating to exchange of key for symmetric cryptography. To overcome this problem java provides another approach for the cryptography called Asymmetric Cryptography. In case of Asymmetric cryptography, there will be two keys unlike one key in case of symmetric cryptography. One key is called Private key and other is called Public key. These two keys are generated together and can be used for encryption and decryption. In this case the Public key is used by anyone who wishes to communicate securely with the owner of the Private key. The Private key is used by the main owner and the owner gives the Public key so that they can decrypt the data. In this article I will give you the example on Asymmetric cryptography. You can find more tutorials and concept on Sun’s JCE(Java Cryptography Extension). In my next article, I will provide you the example on Symmetric cryptography.

Complete Example

This example is only meant for learning and not for any specific use. You can take the piece of code to test in your system to learn the above concept.

The following class is used to create the Public key and Private key. This class contains generic methods to generate the Public and Private key. If you run the testharness class, you will find the two files called “Public.key” and “Private.key”. Please go through the java docs mentioned in the methods.

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Advanced PHP Programming

Product Description
Over the past three years PHP has evolved from being a niche language used to add dynamic functionality to small sites to a powerful tool making strong inroads into large-scale, business-critical Web systems.The rapid maturation of PHP has created a skeptical population of users from more traditional “enterprise” languages who question the readiness and ability of PHP to scale, as well as a large population of PHP developers without formal computer science backgroun…

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Advanced PHP Programming