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Migrating Flashback Data Archive (FDA) tables

This morning I received an email question from a customer asking whether there is support for the Migrating Flashback Data Archive (FDA) tables in Oracle 19c. And since this is not the first time I received this question, I thought it may be good to have a blog post about it.

What is Flashback Data Archive (FDA)?

Well, google it. Actually I was looking for a link in our documentation but to my surprise I found the usual suspects such as Tim Hall’s excellent oracle-base page – but not much in our own doc …

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OJVM and the Mitigation Patch – Things to know in 2020

Today my headline sounds a bit like “Little Red Riding Hood and the Big Bad Wolf” – but there is a reason why I’d like to write about about OJVM and the Mitigation Patch – Things to know in 2020. We are working with a customer right now where preupgrade.jar gave a warning about the existence of the Mitigation patch in an 11.2.0.4 home – despite the fact that JAVAVM is not configured in this database. And this looked strange to us.

OJVM and the Mitigation Patch - Things to know

Photo by Šárka Jonášová on Unsplash

Mitigation Patch?

A quick search on my blog shows me that …

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