Book Image

PHP Oracle Web Development: Data processing, Security, Caching, XML, Web Services, and Ajax

By : Yuli Vasiliev
Book Image

PHP Oracle Web Development: Data processing, Security, Caching, XML, Web Services, and Ajax

By: Yuli Vasiliev

Overview of this book

Oracle Database gets high marks for performance, reliability, and scalability. Building and deploying your PHP applications on Oracle Database enables you to combine the power and robustness of Oracle and the ease of use, short development time, and high performance of PHP. When used in a complementary way, PHP and Oracle allow you to build high-performance, scalable, and reliable data-driven Web applications with a minimum of effort.When building a PHP/Oracle application, you have two general options. The first is to use an Oracle database just to store data, performing all the operations on that data on the client side; the other is to use the database not only to store data, but also to process it, thus moving data processing to the data. While building the key business logic of a database-driven PHP application inside the database is always a good idea, you should bear in mind that not all of the databases available today allow you to do. The Oracle database, which offers record-breaking performance, scalability, and reliability, does. The partnership of Oracle and the open-source scripting language PHP is an excellent solution for building high-performance, scalable, and reliable data-driven web applications.This 100% practical book is crammed full of easy-to-follow examples. It provides all the tools a PHP/Oracle developer needs to take advantage of the winning combination. It addresses the needs of a wide spectrum of PHP/Oracle developers, placing the emphasis on the most up-to-date topics, such as new PHP and Oracle Database features, stored procedure programming, handling transactions, security, caching, web services, and Ajax.
Table of Contents (16 chapters)
PHP Oracle Web Development
Credits
About the Author
About the Reviewer
Preface

Caching Data with Oracle and PHP


You may achieve good performance by using several caching mechanisms available in PHP and Oracle. Certain caching mechanisms and strategies should be chosen depending on several factors, such as whether the data you're caching is fairly static and whether using up-to-date data is crucial for your application.

In the following sections, you will learn how to implement efficient caching schemas using the capabilities of both Oracle and PHP.

Caching Queries on the Database Server

The good news is that Oracle has several built-in caching mechanisms that are used by default. Nevertheless, you should have a good understanding of how these default mechanisms work to take full advantage of them.

This section discusses how Oracle processes SQL statements issued against the database, focusing on the issues related to caching.

Processing SQL Statements

Like any other computer program, an SQL statement has to be compiled (parsed) before it can be executed. When a new SQL...