After creating a simple application, You can running your new application.
Creating an application is an easy way to view and edit your database data. You create this application based on the EMPLOYEES table, which is part of the HR schema.
Now, we are logging in as the Sample User Account.
To create your application, you need to log in as a database user. Oracle Database XE comes with a sample database user called HR. This user owns a number of database tables in a sample schema that can be used to create applications for a fictional Human Resources department. However, for security reasons, this user’s account is locked. You need to unlock this account before you can build a sample application.
The first thing you need to do is to log in as Oracle Database 10g Express Edition Administrator.
Welcome to Oracle Database Express Edition (Oracle Database XE)! This tutorial gets you quickly up and running using Oracle Database XE by creating a simple application.