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Applying Oracle security patches

What is an Oracle security patch? How to apply Oracle security patches on different platforms?

What is an Oracle security patch? How to apply Oracle security patches on different platforms (Windows 2003 Server, Unix, Sun Solaris)?
An Oracle Critical Patch Update, or CPU, is a quarterly patch issued by Oracle to its customers to fix known bugs that are critical in nature. These patches can be downloaded from Metalink, which is Oracle's support Web site. To register for Metalink, you will need a valid Support Identifier (CSI). CSI numbers are unique support identifiers given to each customer with a current support contract.

You must download the appropriate CPU for your operating system as they are specific to each platform and Oracle...

product (database, application server, etc.). With each download, there are specific instructions on how to apply the patch.

This was last published in October 2006

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