Oracle Database

MySQL 
MySQL is a popular choice of database for use in web applications, closely tied to PHP. It is used for social media websites for example such as Facebook, Flickr, Ning amongst other websites.

Getting started with MySQL

• Article: Getting Started with MySQL Resources on installation
• White Paper: A Visual Guide to Installing MySQL on Windows
• Webinar: Windows and MySQL - Part 1: Getting Started with MySQL on Windows
• Tutorial: Installing a LAMP (Linux/Apache/MySQL/PHP) server in Ubuntu

Developing with MySQL

• Tutorial: Developing Database Applications Using MySQL
• White Paper: MySQL Workbench: A Data Modeling Guide for Developers and DBAs MySQL Workbench
• Tutorial Webinar: Introducing MySQL Workbench: model-based visual database design for MySQL DBAs and Developers
• Article: Using JDBC with MySQL, Getting Started

Database 10g Express Edition (XE)

Oracle Database XE is an entry-level, small-footprint database based on the Oracle Database 10g Release 2 code base that's free to develop, deploy, and distribute; fast to download; and simple to administer. Creating an Application Using Oracle Database 10g Express Edition Oracle Database 10g Express Edition (XE)

• Getting Started: Download Oracle Database XE
• Documentation: Getting Started
• Tutorial: Common Tasks
• Tutorial: Creating an Application Using Oracle Database XE
• Book Chapter: Oracle Developer Suite 10g (Oracle Press)
• Developing with Oracle Database XE User's Guide: Oracle Database XE Application Express
• User's Guide: Oracle Database XE with PHP
• User's Guide: Oracle Database XE with Java
• Article: Build a Google Earth Interface on Oracle Database XE
• Article: Working with Dates and Times in Oracle and PHP 

More tutorials providing hands-on, step-by-step instructions on how to implement Oracle Database10g