Change

Oracle Multitenant: Be aware of the silent COMPATIBLE change

This topic is included in our Multitenant slides for a long time. But whenever I want to point somebody to the blog post, I realize that it’s not on the blog yet. Actually I discussed this topic recently during a customer visit again. It’s time to put it on the blog. When you use Oracle Multitenant: Be aware of the silent COMPATIBLE change.

Oracle Multitenant: Be aware of the silent COMPATIBLE change

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Mixed version environments

When you work with Oracle Multitenant, the sooner or later you will have mixed version environments. This may be CDBs with Oracle 12.1.0.2 or Oracle 12.2.0.1 together with …

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Why you should set _EXCLUDE_SEED_CDB_VIEW=FALSE

Why you should set _EXCLUDE_SEED_CDB_VIEW=FALSE

There usually a philosophic battle happening when it comes to underscore parameters. The official statement is more or less: It’s an underscore, hence it is undocumented and you shouldn’t touch it unless Oracle Support advises you to do so. I agree in many cases. But in this specific one, I don’t. And in this post I will explain why you should set _EXCLUDE_SEED_CDB_VIEW=FALSE in all your singe- and Multitenant environments. Always!

A bit of history

At first, a little bit of a history excursion. This parameter wasn’t an underscore in Oracle 12.1. You can find it as EXCLUDE_SEED_CDB_VIEW in 12.1.0.1 …

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