Oracle 12.2.0.1 – Clarification for Limited Error Correction Support

A few weeks ago, you read the announcement of the availability of Limited Error Correction Support for Oracle Database 12.2.0.1. But many of you had some questions right away. I could answer most of them easily. But it was clear to us that there was more information needed. Hence, we published more information for Oracle 12.2.0.1 – Clarification for Limited Error Correction Support.

Oracle 12.2.0.1 - Clarification for Limited Error Correction Support

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What has been announced in April 2020?

Just a few weeks ago we announced the availability of Limited Error Correction Support for Oracle 12.2.0.1 after November 2020. You could find …

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Do you love unexpected surprises? SYS_AUTO_STS in Oracle 19.7.0

Last week I recorded seminars – and I wanted to garnish the Performance part with demo recordings from our Hands-On Lab. I used the Hands-On Lab instructions we published. And while I edited a recording, I realized that there was something new I haven’t seen before. Do you love unexpected surprises? SYS_AUTO_STS in Oracle 19.7.0? Of course you do …!

Do you love unexpected surprises? SYS_AUTO_STS in Oracle 19.7.0

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What happened?

In my environment I run load against my database, I collect statements from AWR and from Cursor Cache into two separate SQL Tuning Sets (STS). And then I upgrade my …

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DBMS_JOB one-off patch needed for Oracle 19.3.0 – 19.7.0

A while ago I blogged already about this behavior change for DBMS_JOB in Oracle Database 19c. Many of you are aware of this. But today I learned something new about it. Kudos to Alexey Makhmutov for bringing this to my attention. There is a very important fix you will need on top in 19c to avoid performance issues. If you rely on jobs with the old job interface, take note: DBMS_JOB one-off patch needed for Oracle 19.3.0 – 19.7.0

DBMS_JOB one-off patch needed for Oracle 19.3.0 - 19.7.0

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What is the problem?

As you can read from there is a internal …

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AutoUpgrade and Plug In to a CDB – with a single command (and video)

I have to confess, this feature is out and available for quite a while. But only unofficially. AutoUpgrade can upgrade and plug in a non-CDB into a CDB. But it lacked flexibility. And we didn’t test it a lot. Hence, you could find it documented in our Hands-On Lab instructions. And we did this exercise with you already in our sold-out labs at OOW 2019 as well. But since a week and a bit, it is officially supported: AutoUpgrade and Plug In to a CDB – with a single command (and video).

AutoUpgrade and Plug In to a CDB - with a single command (and video)

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Create

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Of course, Oracle Clusterware is certified on OL8/RHEL8 as well

To be very honest, when I posted a few days ago, Oracle Database 19c is certified on OL8/RHEL8 I didn’t check for the Oracle Clusterware (OCW) certification. I blindly assumed that this is the case. But from comments and discussions on twitter, I realized it may be necessary to point this out explicitly to avoid confusion. Even though my fellow mate, RAC Product Manager Anil Nair has pointed it out already many times: Of course, Oracle Clusterware is certified on OL8/RHEL8 as well.

Of course, Oracle Clusterware is certified on OL8/RHEL8 as well

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Find it on MOS

Your source for certification information …

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Oracle Database 19c is certified on OL8 and RHEL8

Oh … I’d say this was the question I’ve got asked the second most often in the past months (after a potential extension for Oracle 12.2.0.1 support): When will Oracle certify OL8 and RHEL8? And I read this question internally even more often. Now thanks to my team mate Daniel Overby Hansen who spotted it on Twitter on the weekend, we can tell you that … finally … drum roll … Oracle Database 19c is certified on OL8 and RHEL8.

Oracle Database 19c is certified on OL8 and RHEL8

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How do you get the information?

Go to MyOracle Support and hit …

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4+1 Seminars: Upgrade, Migrate, Consolidate to 19c – not only for Australia

Actually this weekend Roy and I would have flown from Australia to New Zealand. We planned at least 5 seminars. And we’ll do them in person as soon as conditions allow. If you are not tired yet of all these seminars offered to you, then we have the right offering for you.

And not only for those of you based in Australia and New Zealand. Singapore, Japan, Korea and other countries in this part of the globe. Roy and I will run for 4+1 Seminars: Upgrade, Migrate, Consolidate to 19c – not only for

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Can you connect as SYSDBA without password into a PDB directly?

I’m happy when I learn something new every day. And today, right before I wanted to turn my computer into “sleep”, I learned something which surprises me a lot. Have you ever asked the question: Can you connect as SYSDBA without password into a PDB directly? Of course with the usual way of “sqlplus / as sysdba”.

Can you connect as SYSDBA without password into a PDB directly?

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Can you?

Our answer always was: No. You can’t. There is no bequeath connection available.

Today somebody asked a similar question internally. And the answer caught Roy, Daniel, Bill and myself by surprise. There is an …

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Upgrade Testing with a Refreshable PDB – does this work?

Yesterday, Daniel pinged me to discuss an upgrade testing scenario I had evaluated briefly by myself a while ago. I can’t remember why I gave up. But Daniel had some great ideas and tried already a lot in our OCI cloud. We want to use a refreshable PDB. And keep it up to date, then upgrade it. The idea of this approach: Whereas a CLONE or RELOCATE uses the initial command as the marker, a REFRESH would allow me to be way more in synch. So the question is: Upgrade Testing with a Refreshable PDB – does this work?

Upgrade Testing with a Refreshable PDB - does this work?

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3 Live Seminars: Multitenant Seminar 3 Questions answered

This is the third and final QA blog post for the Seminars we did in the last week of April 2020. Thank you for your attendance. I will publish the replay recordings as soon as they are available and link them as well. For now, please find here 3 Live Seminars: Multitenant Seminar 3 Questions answered.

3 Live Seminars: Multitenant Seminar 3 Questions answered

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Your Questions, our Answers for Seminar 3: Multitenant

103 We are in the process of migrating to Oracle Cloud using the xtts method for cross platform migration and we seem to be encountering an issue with it
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3 Live Seminars: Upgrade and Performance Seminar 2 Questions answered

Thanks a lot to all of you who participated also in our second seminar. Below you find now 3 Live Seminars: Upgrade and Performance Seminar 2 Questions answered.

3 Live Seminars: Upgrade and Performance Seminar 2 Questions answered

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Your Questions, our Answers for Seminar 2: Upgrade and Performance

I this blog post I answer all questions from the second seminar about AutoUpgrade to Oracle 19c and Performance Stability. Please find the links to the other QAs for Seminar 1 (Release Strategy, Patching and Cool Features) and Seminar 3 (Migration to Multitenant) below in the Links section of this blog post.

39 We need
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3 Live Seminars: Slides Download and Questions Seminar 1 answered

Thanks a lot to all of you who participated this week in the 3 live Seminars about Database Upgrade, Performance Stability and Multitenant. We were just overwhelmed but so many tuning in. And I hope you’ve enjoyed it. As promised here you’ll get more. So find here for all 3 Live Seminars: Slides Download and Questions Seminar 1 answered. Once the recordings are published, I will tell you via the blog of course as well.

Slides Download

Thanks again also to Laura Garcia Villareal from Oracle University. If you have more questions regarding …

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Less is more – faster Oracle database upgrades with less memory

The title of this post sounds a bit weird: Less is more – faster Oracle database upgrades with less memory. Just a few weeks ago, I posted about How long will my upgrade take … revisited. And Daniel adds a very useful piece to the upgrade speed topic. Read about his tests below.

Less is more – faster Oracle database upgrades with less memory

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Less is more – faster Oracle database upgrades with less memory

by Daniel Overby Hansen, Senior Principal Product Manager,
Oracle Database Upgrades and Cloud Migrations
Less is more – faster Oracle database upgrades with less memory by Daniel Overby Hansen

Daniel Overby Hansen

Mike and I had a talk with a customer the other …

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3 Live Seminars: Database Upgrade and more – April 28, 29 and 30, 2020

Well, everybody does Web Seminars now, right? Just in case you sit at home next week on Tuesday, Wednesday and Thursday, you’ve just had your lunch. And you don’t know what do to in the afternoon, sign up and click in to our 3 Live Seminars: Database Upgrade and more – April 28, 29 and 30, 2020. Every day at the same time, 14:30h CET (or 13:30 GMT or 18:00 IST).

3 Live Webinars: Database Upgrade and more – April 28, 29 and 30, 2020

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Another Web Seminar?

It’s free – FIND THE REGISTATION LINKS BELOW – of course. My colleague Laura Garcia and I will talk …

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JDK patching happens with every RU since January 2020

A while ago, a customer asked me whether he needs to apply JDK patches separately. He discovered that the JDK in the $ORACLE_HOME is quite outdated. But there was no clear answer available. And the MOS Note he pointed me to, seemed to be quite incomplete. But times have changed. And JDK patching happens with every RU since January 2020.

JDK patching happens with every RU now

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JDK who?

JDK stands for Java Development Toolkit. As the Wikipedia article explains, “the JDK includes a private JVM and a few other resources to finish the development of a Java Application”. …

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OJVM datapatch fails with ORA-29532 – but the root cause is noncdb_to_pdb.sql

Kudos to Robert Ortel who brought this nice misbehavior to my attention. And even though it looks like this would be an OJVM issue, it is caused by noncdb_to_pdb,sql, the script which is used to convert a non-CDB to a PDB. When you apply an OJVM patch, OJVM datapatch fails with ORA-29532 – but the root cause is noncdb_to_pdb.sql.

OJVM datapatch fails with ORA-29532 - but the root cause is noncdb_to_pdb.sql

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It’s a bit tricky

First things first. This is not a blog post to blame OJVM. The problem just happens because datapatch for an OJVM patch touches data in the dictionary which hasn’t …

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OPatch Alert: Be aware of cleanup issues – and the JDK version

This is just a quick alert blog post for Friday with an OPatch Alert: Be aware of cleanup issues – and the JDK version. And thanks to several people who either commented or mailed me directly and asked if I could alert others as well.

OPatch Alert: Be aware of cleanup issues - and the JDK version

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OPatch cleanup issue

At first, you may have read earlier this week my article about patching my environments with the April 2020 bundle patches. For my patch activity, I’ve had to exchange my OPatch versions for 11.2.0.4, 12.2.0.1 and 19.7.0. And I guess, I would have had …

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Oracle 12.2.0.1 Support extended with Limited Error Correction Support

There was sort of a rumor already as some customers sent mail to me last week whether we may extend the support period for Oracle 12.2.0.1. And thanks to my friend, Robert Pastijn, who alerted me minutes ago, you can find this information now as well in the single source of truth, MOS Note:742060.1.

Oracle 12.2.0.1 Support extended with Limited Error Correction Support

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Limited Error Correction announced for 12.2.0.1 Database

There are three important bullet points in the Patching End Dates table for Oracle Database 12.2.0.1:

  • Error Correction / Patching is available until Nov 30, 2020
  • Limited Error Correction (Sev 1 and
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Online Clone a PDB and synch with Oracle GoldenGate?

A few weeks ago I published two blog posts, one about Online Cloning and one about Relocate for PDBs. As in many cases, the blog posts got triggered by actual customer questions – and of course out of my own curiosity. In addition, we received the ultimate question: Can I Online Clone a PDB and synch with Oracle GoldenGate? And while my answer would have been “Of course!” a few doubts came up. But read below …

Online Clone a PDB and synch with Oracle GoldenGate?

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Online Clone versus Relocate of PDBs

I received very good ideas and feedbacks from you regarding …

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Patching all my environments with the April 2020 Patch Bundles

My quarterly routine happens when the new security alerts get published. And it is time again. I’ll show you as usual how Patching all my environments with the April 2020 Patch Bundles works.

Patching all my environments with the April 2020 Patch Bundles

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Security Alert April 2020

Let’s start with the Security Alerts for April 2020. It leads me to the April 2020 Critical Patch Advisory. I’m a database guy, so I’m interested in: Oracle Database Server, versions 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c, 19c. And this link brings me directly to the Risk Matrix for the database products.

You will spot three …

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Upgrade: What if your time zone in source is newer than in target?

Sometimes there is just a simple question at the beginning. Like Daniel and I discussed this morning. Does AutoUpgrade check if the time zone file in source is higher than in target? While we discussed this, I downloaded the patches already to try it out. And in addition, I could double-check whether the time zone patches for 19c are now RU-independent finally. But the question remains for Upgrade: What if your time zone in source is newer than in target?

Upgrade: What if your time zone in source is newer than in target?

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My intention wasn’t initially to write a longer blog post. But read below …

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Troubleshooting, Restoring and Restarting AutoUpgrade

What if … something goes wrong during your database upgrade with AutoUpgrade? Of course, this never happens. But just in case, no worries – one of the really big advantages of AutoUpgrade (and the command line upgrade with “dbupgrade” as well) is its resumability and restartablity. But in this blog post I would like to cover a bit more. I will show you more details on Troubleshooting, Restoring and Restarting AutoUpgrade.

Troubleshooting, Restoring and Restarting AutoUpgrade

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And as often, the cause for this blog post is an email from Hervé Schweitzer, the CTO of dbi-services. Hervé told …

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Oracle Database Upgrade – Quick Start Guide available

If you don’t deal with databases upgrades every day but just want to see a short and good overview about how to do a successful database upgrade, then this is for you. A few days ago we’ve made the Oracle Database Upgrade – Quick Start Guide available for download.

Oracle Database Upgrade - Quick Start Guide available

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Why a Quick Start Guide?

If database upgrades are your daily topic, you won’t need our quick start guide. But if you need a short overview about the right steps to approach an upgrade, this guide is for you. Thanks to my PM colleague,

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AutoUpgrade – New Version with RAC Database Upgrade Support

Thanks to all our customers who participated in our evaluation test for RAC upgrade support with the AutoUpgrade Tool. And my colleagues worked hard to deliver the new version as quickly as possible. Just to make sure: This is not an April’s fools blog post. Since 2 days, you can download AutoUpgrade – New Version with RAC Database Upgrade Support.

AutoUpgrade - New Version with RAC Database Upgrade Support

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Where to download it?

As usual, you can download the newest version – in this case 19.8 aka 20200327 from MOS Note: 2485457.1:

You simply copy the new version into your 19c (or …

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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

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Mitigation Patch?

A quick search on my blog shows me that …

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