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Oracle Database 10g Express Edition (I will refer to this as Oracle XE from here on) is a basic version of the Oracle Database 10g that is freely available for development, deployment and distribution. It is an excellent entry-level database for learning Oracle and PL/SQL and will run on most modern PCs and laptops.

I will be using Oracle XE in the majority of the tutorials and sample applications on this website, so it is highly recommended that you install it so you can follow my examples closely and precisely. In order to install Oracle XE on your computer, you will need to download it from Oracle's website. It is available for Microsoft Windows and x86 Linux distributions. For the purpose of this guide I will be showing you how to install Oracle XE on Microsoft Windows XP, but the procedure should be similar for other Windows operating system