What is Oracle Apex?
Oracle Application Express (Oracle Apex, previously named Oracle HTML-DB) is a freeware software development environment based on the Oracle database. It allows a very fast development cycle to be achieved to create web based applications.
APEX is Oracle’s answer to wizard-based Web Development. It certainly is full of wizards! APEX contains metadata (lots of it) on everything in the tool, too. It produces dynamic HTML and it’s fast! APEX uses the PL/SQL module for Apache (mod_plsql). It doesn’t use any Java code. Anything you can do in SQL or PL/SQL can be done using APEX. APEX provides a nice Web-based team development environment for your organization.