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  • Book Overview & Buying Oracle APEX Best Practices
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Oracle APEX Best Practices

Oracle APEX Best Practices

4.3 (6)
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Oracle APEX Best Practices

Oracle APEX Best Practices

4.3 (6)
Buy this Book

Overview of this book

Have you ever wanted to create real-world database applications? In this book you're not only getting APEX best practices, but will also take into account the total environment of an APEX application and benefit from it."Oracle APEX Best Practices" will guide you through the development of real-world applications. It will give you a broader view of APEX. The various aspects include setting up APEX environment, testing and debugging, security, and getting the best out of SQL and PL/SQL.In six distinct chapters you will learn about different features of Oracle APEX as well as SQL and PL/SQL.Do you maximize the capabilities of Oracle APEX? Do you use all the power that SQL and PL/SQL have to offer? Do you want to learn how to build a secure, fully functional application? Then this is the book you'll need. "Oracle APEX: Best Practices" is where practical development begins!
Table of Contents (14 chapters)
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Oracle APEX Best Practices
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Oracle APEX Best Practices
Credits
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Credits
About the Authors
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About the Authors
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Prepare and Build
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Prepare and Build
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History and background
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Installing APEX
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Choosing a web server
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Creating a second administrator
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Database
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Creating a workspace
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User Interface Defaults
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Page Zero
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Structure of multiple applications
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Creating applications
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Summary
2
Leveraging the Database
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Leveraging the Database
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Instrumentation
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Efficient lookup tables
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Analytic functions
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Aggregate functions
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Searching the contents of documents
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Summary
3
Printing
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Printing
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Printing architecture
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Installation and configuration of the Apache FOP report server
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How to debug or troubleshoot printing issues
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How to check if network services are enabled
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Creating a report with BI Publisher
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How to create a report that can deliver output in different formats
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How to add a chart to a report
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How to add dynamic images to a report
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Print API
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How to bypass the 32K limit
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Alternatives to use for PDF printing
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Plugins
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Summary
4
Security
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Security
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Securing Oracle Application Express for administrators
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Virtual Private Database
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Security considerations when installing Oracle Application Express
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Security considerations for the developer
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Summary
5
Debugging and Troubleshooting
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Debugging and Troubleshooting
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Debugging an APEX page
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APEX_APPLICATION.G_DEBUG
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APEX and Oracle SQL Developer
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Remote debugging
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JavaScript console wrapper
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Web development tools
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Summary
6
Deploy and Maintain
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Deploy and Maintain
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Package your application, or not?
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Deploying the database packages
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Deploying the APEX application
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Being active and proactive
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Summary
1
Database Cloud Service and APEX 4.2
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Database Cloud Service and APEX 4.2
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Oracle Public Cloud
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Summary
2
Index
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Index

How to check if network services are enabled

Network services need to be enabled for Oracle RDBMS version 11 and higher. When an error occurs in the printing, the network services need to be checked.

select acl, principal, privilege, is_grant from dba_network_acl_privileges;

The outcome is as follows:

ACL					Principal		Privilege		Is_Grant
/sys/acls/power_users.xml	APEX_040100	Connect		True

The preceding query will check the necessary privileges that are needed for the printing feature in Application Express. These rows need to be present for enabling printing. If the necessary privileges are not granted when you are printing, the following error will be generated:

ORA-20001: The printing engine could not be reached because either the URL specified is incorrect or a proxy URL needs to be specified

When there are no rows, ACL needs to be added. The code needed to fix this problem is available in the Installation Guide from Application Express, under the header 3.3.7 Enable Network Services...

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Tech Concepts
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Programming languages
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Oracle APEX Best Practices
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