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Oracle Application Express 3.2 - The Essentials and More

You're reading from   Oracle Application Express 3.2 - The Essentials and More Develop Native Oracle database-centric web applications quickly and easily with Oracle APEX

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Product type Paperback
Published in Jun 2010
Publisher Packt
ISBN-13 9781847194527
Length 644 pages
Edition 1st Edition
Languages
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Table of Contents (30) Chapters Close

Oracle Application Express 3.2
Credits
About the Authors
About the Reviewers
1. Preface
1. An Introduction to APEX FREE CHAPTER 2. What we need to know to effectively use APEX 3. APEX Basic Concepts 4. The Application Builder Basic Concepts and Building Blocks 5. APEX Items 6. APEX Buttons 7. APEX Computations 8. APEX Validations 9. APEX Processes 10. APEX Branches 11. APEX SQL Workshop 12. APEX Forms 13. APEX Reports 14. Tabular Forms 15. Calendars 16. Interactive Reports 17. AJAX with APEX 18. Globalization and Localization With APEX Applications 19. Right-To-Left Support in APEX 20. Deploying APEX Applications 21. The APEX Runtime Environment 22. Security 23. Application Conversion 24. APEX Best Practices APEX Installation, Upgrade, and Configuration Tips

Application items


Application items are defined in the Shared Components module as part of the Logic section. As such, they are available to us throughout the application, like global variables.

Application items are not rendered on the application page and they don't have a specific data type. We are usually using them as part of SQL or PL/SQL code, and they can hold any type of data we choose to store in them. Being used very often in SQL and PL/SQL code, they should adhere with the Oracle identifiers name rules as we specified them earlier in this chapter.

The APEX naming convention recommends us to prefix the application item name with the letter 'F' and the application ID. In the following screenshot, we can see the Create/Edit Application Item screen of application 250. Hence, the application items will be prefixed, by default, with F250_, e.g. F250_APP_ITEM1. We, of course, can choose any other naming convention or any specific name that we want. Taking into account that changing...

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