Apex Examples

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Packaged Apps
Carl Backstrom's
Denes Kubicek's
Dimitri Gielis's
Mark Lancaster's
Vikas's

Oracle Locator Express

Oracle Locator Express is a small free utility with which you can switch the default Oracle Home on-the-fly, just like the Oracle Home Selector does.

http://www.dbmotive.com/ole/

You can get ...

You can get OpenSolaris Live CD and Oracle Unbreakable Linux DVD shipped to you free of cost.
Order OpenSolaris
Order Oracle Unbreakable Linux

Developing own program using Oracle XE and APEX

Steve Hall method:
1) Fresh install of Oracle XE to default location on new machine,
2) Run backup.bat script on my development machine (ApEx 3.1, my app etc),
3) Copied these files / folders from the development machine to the new installation :
flash_recovery_area\XE\AUTOBACKUP\*
flash_recovery_area\XE\BACKUPSET\*
product\10.2.0\server\database\SPFILE2INIT.ORA
4) Run the restore.bat script on the target machine.
Voila! ApEx 3.1 and my app on the target machine. It needs more testing and automating but it certainly seems to work 'in the lab'.

Suggestion: You can try the COMPRESS option in backup.

Andre method:
Basically the steps are as follows.

1. Create your schema.
2. Create a workspace using that schema.
3. Create your underlying db objects.
4. Import the application into the workspace.

This is pretty basic and there may be some other steps required to complete the job, such as importing images and workspace users but overall, once you do it once, its not that hard.

Connection to Oracle without using tnsnames

You can use the following syntax to connect

sqlplus user/password@//host:[port]/service_name
sqlplus user/password@//host:[port]/service_name as sysdba

This syntax (known as EZCONNECT) is only available with sqlplus >= v10.2

Oracle Application Express (APEX) related open source projects

ApexGen - The Oracle APEX Generator
A utility to generate Oracle Application Express pages based on a PL/SQL API.

The Oracle APEX Builder Plugin
The Plugin is a productivity and usability enhancement tool for the development evironment of Oracle Application Express (APEX).It integrates with Firefox and Internet Explorer 6 & 7 to put a wealth of new features to your favourite development tool.

ApexLib - The Oracle APEX Framework Project
The aim of this project is to provide "the" development framework for the Oracle web development environment APEX (Oracle Application Express). APEX is a very productive declarative web-development environment, but which has (as any tool) some short comings. Especially in the area of "out of the box AJAX features" and "out of the box client-side validation".

Oracle VM

Tarry Singh at http://www.databasejournal.com/features/oracle/article.php/3712246
writes great article how to install Oracle VM.
It gives a really detailed step by step run through the oracle vm installation with loads of pictures showing the screens you see at each stage of the install.

Don't like to read:
8 minutes and you know all about installing Oracle VM
Check out you tube http://www.youtube.com/watch?v=R_W5_5wJy80

Great series about "Mining Information from the Listener Log" by Arup Nanda

In this article, you will learn how to build an infrastructure to process the listener log and to use it to unearth information on your database operations. The information can be used in different scenarios, as you will see later.

On-line tutorials Oracle 10g, Java, XML and Web Services

Advanced technical tutorials to help you learn Oracle 10g, Java, XML and Web Services.
These online Tutorials are self-paced, self-study lessons that contain numerous working examples and hands-on workshops.

Conditional Column Formatting in APEX

An exmaple: