Installable Components
When you begin your installation, you will need to indicate to the installer exactly which Oracle software components you wish to install. Typically, Oracle installation media include all components available for the platform. However, some of these components may require separate licensing, and some may either be unnecessary or inappropriate for your particular installation. For example, SQL*Net will be included on the installation media, including all available SQL*Net protocol adapters. In most cases, you will only be using one or two SQL*Net protocols, so it would not make sense to install any others.
Tip
The Oracle installer may be able to detect network protocols running on your machine and may attempt to install protocol adapters to support those found. Be sure that you want to install all the adapters that the installer selects. For example, the IPX protocol may be running on your machine, but you may not want SQL*Net to utilize that protocol, so in this case you would choose not to install the SPX protocol adapter.
There will be many database options and tools presented to you in the “available” list, and you should carefully choose those you wish installed. For example, in most Oracle installers, you must choose not only “Oracle Server (RDBMS)” but also “PL/SQL” if you want to use PL/SQL (and who doesn’t need that?).
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