Steps to Apply PSU patch on oracle 11g database

Updating your Oracle 11g database with a PSU (Patch Set Update) is important to keep it safe and running smoothly.

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Download the right PSU from Oracle's website.

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Make a copy of your database to be safe.

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Turn off the database so you can work on it without problems.

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Use a special tool called OPatch to install the PSU.

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Look for any problems after applying the patch.

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Turn the database back on.

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Make sure everything is working correctly.

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