Book Image

Oracle APEX 4.0 Cookbook

By : Michel Van Zoest, Marcel Van Der Plas
Book Image

Oracle APEX 4.0 Cookbook

By: Michel Van Zoest, Marcel Van Der Plas

Overview of this book

<p>Oracle Application Express 4.0 is a rapid web application development tool that works with the Oracle database. Using features like Plug-ins and Dynamic Actions, APEX helps you build applications with the latest techniques in AJAX and JavaScript.</p> <p>The Oracle Application Express 4.0 Cookbook shows you recipes to develop and deploy reliable, modern web applications using only a web browser and limited programming experience. <br /><br />With recipes covering many different topics, it will show you how to use the many features of APEX 4.0.<br /><br />You will learn how to create simple form and report pages and how to enhance the look of your applications by using stylesheets. You will see how you can integrate things such as Tag Clouds, Google Maps, web services, and much more in your applications. Using Plug-ins, Dynamic Actions, BI Publisher, translations and Websheets, you will be able to enhance your applications to a new level in APEX.</p> <p>This book will show you how to be Agile in the development of your web applications by using Team Development, debugging, and third-party tools.</p> <p>After reading this book, you will be able to create feature-rich web applications in Application Express 4.0 with ease and confidence.</p>
Table of Contents (19 chapters)
Oracle APEX 4.0 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Introduction


Data-centric applications can have many different architectures. In some of these architectures, the data is not even in the database itself. In these cases, a possible scenario can be that the data is collected by calling webservices.

Essentially, a webservice provider offers a way for external applications to unlock its data, but not give away total access to its database (or other datasources).

A call to a webservice will have to satisfy certain standards as set by the World Wide Web consortium (W3C). Since the fourth version of Application Express, it provides the possibility to natively call two of these standards: Simple Object Access Protocol (SOAP) and Representational State Transfer (REST). But, by using a little more PL/SQL and XML DB, it's possible to use any type of webservice in APEX.

In this chapter, we are going to create some examples of how to use webservices in APEX.