19.10.0

UNDO_RETENTION not inherited to PDBs anymore since 19.9.0

Posted on July 12, 2021 by Behavior Change 15

Behavior changes introduced via a bug fix may not be something you like a lot. And thanks to Sreedhar from one of our most important customers I learned on the weekend: UNDO_RETENTION not inherited to PDBs anymore since 19.9.0.

UNDO_RETENTION not inherited to PDBs anymore since 19.9.0

Photo by Ben Wicks on Unsplash

What is happening before 19.9.0?

Until Oracle 19.8.0 you could change the UNDO_RETENTION in the CDB$ROOT, and it applied to all PDBs automatically. You may or may not have cared. But there are cases when you’d like to change an undo related parameter in the CDB$ROOT without its propagation into all PDBs.

This behavior …

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AutoUpgrade may run into a timeout when GI is lower than 19.10.0

Posted on June 21, 2021 by ASM / RAC / GI Patch Recommendation 9

The other day I received a question from a colleague about the risk of having GI and database both not being on the same RU. And a long while ago I blogged about it. We recommend that you keep it in synch. But you don’t have to. At the same time I received a wish from Ernst Leber to post something on the blog he and his colleague had trouble with when upgrading to 19c in a RAC environment. AutoUpgrade hung. But he titled his email with “not an AutoUpgrade problem!”. Still I agree, it is worth to write …

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ORA-12638 on Windows only from Oracle 19.10.0 onwards

Posted on March 10, 2021 by Behavior Change Flaws and Pitfalls Oracle Database 19c 56

You like unexpected changes and surprises, don’t you? And especially those which aren’t in the patch notes or the docs. I blogged about such changes a few weeks ago. And thanks to the people reading this blog, I learned now about another change with Oracle 19.10.0 on the Windows platform. You may receive now an ORA-12638 on Windows only from Oracle 19.10.0 onwards.

What has been changed?

So at first, thanks to Ernst and Marcus for bringing this to my attention. This is an issue which happens on MS Windows only.

When you …

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Workaround for sdoloadj.sql errors with Datapatch in 19.9.0 and 19.10.0

Posted on March 2, 2021 by Flaws and Pitfalls 6

The other week a customer from my hometown alerted me about an issue they saw when applying the 19.9.0 RU. A long sequence of errors in the datapatch run, all of them signaled from sdoloadj.sql. They opened an SR. And Support had an – understandable – recommendation the customer didn’t want to implement: Install JAVAVM. But thanks to my PM mate, Hans Viehmann (Mr Spatial), here is a simple Workaround for sdoloadj.sql errors with Datapatch in 19.9.0 and 19.10.0. And it may even apply to later releases, too.

What happens?

Take …

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Oracle Database 19.10.0 and Blockchain Tables and COMPATIBLE

Posted on February 18, 2021 by Behavior Change Oracle Database 19c Parameters Patch Recommendation 4

Many of you recognized that we delivered a new feature with Oracle Database 19.10.0, the January 2021 Release Upgrade. So I’d like to put a few interesting things together from the upgrade and migration perspective regarding Oracle Database 19.10.0 and Blockchain Tables and COMPATIBLE.

What are Blockchain Tables?

At first, I don’t want to repeat what other people have blogged and written about already. You may just go through the blog posts of Connor McDonald and Tim Hall and others to learn more about this cool feature.

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You may need a one-off for DBMS_OPTIM_BUNDLE in 19.10.0

Posted on February 1, 2021 by Optimizer Patch Recommendation 22

It’s been a while since I blogged about the DBMS_OPTIM_BUNDLE – and to me, the package is still sort of a mystery. Ideally you can least and enable or disable behavior changing optimizer fixes per RU. And in Oracle 19.10.0, you will find a new surprise. So You may need a one-off for DBMS_OPTIM_BUNDLE in 19.10.0.

You may need a one-off for DBMS_OPTIM_BUNDLE in 19.10.0

Photo by Jonas Denil on Unsplash

Quick Recap

Just in case you haven’t dealt with DBMS_OPTIM_BUNDLE yet or for a while, a quick recap.

With this procedure, you can list the available patches to turn on or off at will:

SQL> set serveroutput
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Patching all my environments with the January 2021 Patch Bundles

Posted on January 20, 2021 by Patch Recommendation 40

Groundhog day on the upgrade blog. It’s time for my quaterly Patching all my environments with the January 2021 Patch Bundles blog post. And still no RAC and ASM. Sorry for that … too many virtual events and other tasks since months unfortunately.

Patching all my environments with the January 2021 Patch Bundles

Photo by Bofu Shaw on Unsplash

As usual, an important annotation upfront: I patch in-place due to space issues. But in reality, you please patch always out-of-place with a separate home. Please see this blog post about how to apply the RU directly when you provision a new home with OUI.

Security Alert January 2021

Find …

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Mike Dietrich
Oracle Senior Director of Product Management for Database Upgrade, Migrations and Patching writing just another blog.

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