The ORACLE Selected Data extension is not installed or cannot be included

Hi,Anonymous .I am glad to help you.
Unfortunately, due to environmental reasons, I was unable to install the database extension to reproduce your problem.
I hope my suggestions below will help you:
You can try uninstalling the relevant Oracle components first. And reinstall the corresponding version to ensure that the version of ODAC you installed matches the version of your Oracle database. (Note the version number)
I found the similar issues.
URL:
Solved: Power BI Report Builder - Oracle Connection Issue - Microsoft Fabric Community
SSRS - The selected data extension ORACLE is not installed or cannot be loaded - Microsoft Q&A

I hope my suggestions give you good ideas, if you have any more questions, please clarify in a follow-up reply.
Best Regards,
Carson Jian,
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