What is Oracle Application Express?
Oracle Application Express (Oracle APEX) is a declarative, rapid web application development tool for the Oracle database. It is a fully supported, no cost option available with all editions of the Oracle database. Using only a web browser, you can develop and deploy professional applications that are both fast and secure.
Whether you are an experienced SQL and PL/SQL developer or a power user used to writing reports, wizards allow you to quickly build Web applications on top of your Oracle database objects. Enhancing and maintaining these applications is done using a declarative framework, all of which increases your productivity.
Oracle Application Express is database-centric and suited to building a vast array of applications. You can start with webifying a spreadsheet to facilitate collaboration or dive right into extremely complex applications with numerous external interfaces such as the Oracle Store. Because Oracle APEX resides within the Oracle Database and can easily integrate with authentication schemes (such as Oracle Access Manager, SSO, LDAP, etc.) you can build secure applications that can scale to meet your largest user communities.
Oracle APEX is a part of the standard database components.
So after the 11g installation, I just follow simple steps (shown later below) for the post-installation. In order to access the APEX application, either the embedded PL/SQL gateway or Oracle HTTP server with mod_plsql is needed.
By using the embedded PL/SQL gateway, it will run using the Oracle XML DB HTTP server which is already in Oracle database, so there is no need to install a separate HTTP server.
Local LAB Testing:-