oracle 19c

ORA-1555 won’t get reported into alert.log anymore since 19.4.0

Many thanks to a German customer for showing me this tiny behavior change with Oracle Database RU 19.4.0. From this RU on the well known ORA-1555 won’t get reported into alert.log anymore since 19.4.0. But if you still like to see the “snapshot too old” error, then you can use a workaround.

Why has this been changed?

Actually this is something I don’t understand completely. It may be just a side effect. Unpublished fix bug 29424999 – DUMP MINIMAL DIAGNOSTICS BY DEFAULT IN CASE OF ORA-01555 IN ADW/ATP ENV has been

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Pitfall: ORA-1843 – NOT A VALID MONTH in Oracle 19.4 – 19.8

Today, I’d like to write about a tiny little issue – which can cause some real trouble in Oracle 19c. This blog post is about the Pitfall: ORA-1843 – NOT A VALID MONTH in Oracle 19.4 – 19.8.

The Testcase

My testcase is super-simple – and you can reproduce it even without any object in 2 seconds (one for “copy“, the other for “paste“). Simply execute this query:

select to_date('20191120','RRMMDD') from dual;

Or this one where I replace “RR” with the more common “YY”:

select to_date('20191120','YYMMDD') from dual;
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Web Seminar MEA – Recap, Slides, Recording and Answers

A few weeks ago, on June 29, 2020, I delivered an Upgrade Web Seminar for the MEA region. Thanks a lot if your participated. And today I’d like to share with you for this Web Seminar MEA – Recap, Slides, Recording and Answers.

Web Seminar MEA - Recap, Slides, Recording and Answers

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Recap

Thanks to those who found the time to participate. I enjoyed the hour a lot. And thanks also to my colleagues from Oracle Dubai who set up the session and handled the registration and the logistics.

Slides

You can download the slides for this session as usual from the Slides

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Collection of EBS upgrade information for Oracle Database 19c

This was the question I received the most often during the Virtual Classroom web seminars last week: “Can you say something about EBS upgrades with 19c?”. And I promised to publish a blog post about it. But as I’m not an EBS expert, I can only share a Collection of EBS upgrade information for Oracle Database 19c. For all further inquiries, please open an SR or get in touch with your Oracle contact.

Recap – EBS and Oracle 19c

In September 2019, right before Oracle Open World, we announced the certification of EBS …

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Oracle Long Term Support vs Innovation Releases

Earlier this week I wrote about the recent exciting news: Oracle Database 19c Premier Support extended by more than 1 year. But if you went to MOS 742060.1 to read the fine print, you may have spotted another change as well: A differentiation between Oracle Long Term Support vs Innovation Releases.

Oracle Long Term Support vs Innovation Releases

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What is a Long Term Support Release?

MOS 742060.1 explains:

Oracle Database Long Term Releases are ideal for use cases that benefit from less frequent upgrades to newer releases. Long Term Releases offer the highest level of stability and the l

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Upgrade to Oracle Database 19c – Virtual Classroom Series

Roy and I delivered a similar seminar already for the Australia and New Zealand region. And now it is time at a more convenient time zone setting for EMEA and India. So if you are not tired of web seminars yet, please sign up for our Upgrade to Oracle Database 19c – Virtual Classroom Series.

Upgrade to Oracle Database 19c - Virtual Classroom Series

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4 Web Seminars – Going far beyond upgrades

The idea for this series of 4 web seminars is to cover not only the database upgrade itself. You will get much more than technical upgrade information. And we will …

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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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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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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?

Photo

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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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To which release should you upgrade to? Revisited …

I’ve had so many discussions with customers and partners, and also with colleagues in the past weeks and months about the support time frames for Oracle Database 12.2. Now I checked the blog, and I found so many posts about support periods. And I wrote a similar blog post already 1.5 years ago. I think it’s time to summarize all that. And give you some guidance as well about to which release should you upgrade to? Revisited …

To which release should you upgrade to? Revisited ...

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Overview

Basically there are 2 sources to learn about Support time frames for the database release:…

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Is Oracle Fail Safe 4.2.1 certified with Oracle Database 19c?

From time to time I get questions regarding the certification of Oracle Fail Safe. And just the other day, a customer asked: Is Oracle Fail Safe 4.2.1 certified with Oracle Database 19c? I briefly browsed my blog posts about Oracle Fail Safe from the past, and even though I mentioned that the certification for 4.2.1 on Oracle 12.2.0.1 may apply to later versions, I never updated it.

Is Oracle Fail Safe 4.2.1 certified with Oracle Database 19c?

Is Oracle Fail Safe 4.2.1 certified with Oracle Database 19c?

Yes, it is. But you may want to know where you can read and find this information.

The latest version of Oracle Fail …

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New version of Upgrade / Migrate / Consolidate to Oracle 19c uploaded

Please apologize that it took me a bit longer to upload a new version of our comprehensive slide deck. You can download now a new version of “Upgrade / Migrate / Consolidate to Oracle 19c” via the blog’s download page.

New version of Upgrade / Migrate / Consolidate to Oracle 19c uploaded

Why is there a new version?

Since Oracle Open World 2019 we have a new corporate template. And while I like the graphics quite a bit, I’d say, the people who built it have a good sense for graphics. But they aren’t powerpoint experts. In fact, almost every slide had to be adjusted. This may not be a huge …

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Oracle Fail Safe is deprecated with Oracle Database 19c

I wanted to put this on the blog for quite a while but forgot to do so. Since Oracle Database 19c, Oracle Fail Safe has been deprecated. What does this mean?

Oracle Fail Safe is deprecated with Oracle Database 19c

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Deprecation of Oracle Fail Safe

First of all, deprecated does not mean desupported. Oracle Fail Safe is still fully supported. But since Oracle 19c, you will find this note in the Windows Admin Guide:

Deprecation of Oracle Fail Safe

Oracle Fail Safe is deprecated as of Oracle Database 19c. It can be desupported and unavailable in

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Oracle EBS 12.2 on-prem is now certified with Oracle 19c – and will become a PDB

Great news – and I’m just putting the pieces together. Oracle EBS 12.2 on-prem is now certified with Oracle 19c.

Oracle EBS 12.2 on-prem is now certified with Oracle 19c - and will become a PDB

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Plan your upgrade(s)

You can plan your EBS and database upgrades now. I know from discussions at conferences and workshops, that customers felt locked in on older databases releases. As a result, we waived the Extended Support for the database for those who still are on Oracle 11.2.0.4 and 12.1.0.2 as database for an EBS installation.

Please be aware that the certification as of now includes only Linux and SPARC Solaris platforms. …

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Behavior Change in Oracle 18c/19c: No symbolic links for Data Pump directories

Most of you may have recognized the desupport of UTL_FILE_DIR with Oracle Database 18c. Reason is mostly that UTL_FILE_DIR opens a lot of possibilities to do insecure things. But this has another effect which may not be obvious to you. There’s a behavior change in Oracle 18c/19c: No symbolic links for Data Pump directories. Read further to learn more about it.

UTL_FILE_DIR Desupport

In Oracle Database 18c we announced the desupport of UTL_FILE_DIR initialization parameter. But as you can read as well in the Database Upgrade Guide, there’s this remark:

UTL_FILE Package Symbolic Link in Directory Paths Not Supported

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AutoUpgrade: ANALYZE, FIXUPS, UPGRADE and DEPLOY modes

AutoUpgrade: ANALYZE, FIXUPS, UPGRADE and DEPLOY modes

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In the previous blog posts I explained mainly how to create, alter and tweak the configuration file for the AutoUpgrade tool. By now you should have your config file set up and adjusted for your environment(s). Let me go a step further and explain the different processing modes of AutoUpgrade: ANALYZE, FIXUPS, UPGRADE and DEPLOY modes. Then you’ll have a precise idea what the tool is actually doing, and how it operates.

AutoUpgrade – Step-by-step

  1. The new AutoUpgrade Utility – Download, documentation and supported versions
  2. Create and adjust the config file for
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Config file for AutoUpgrade 19c – Advanced options

Config file for AutoUpgrade 19c – Advanced optionsIn the previous blog post I explained how to create a config file for the AutoUpgrde utility. And now I’d like to show how you can use some important advanced options to have the AutoUpgrade utility do or skip specific tasks. Read about how you can tweak the config file for AutoUpgrade 19c – Advanced options.

I will describe only the most important advanced parameters which I think can be very useful in your environments. Of course, there are many more as you can see in the Database Upgrade Guide.

AutoUpgrade – Step-by-step

  1. The new AutoUpgrade Utility – Download,
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A new version (June 2019) of the AutoUpgrade is available for download

My team mates worked very hard – and many customers did the same. Thanks for all your feedbacks. We tried to help and assist everybody where possible. And here it is. A new version (June 2019) of the AutoUpgrade is available for download.

A new version of the AutoUpgrade is available for download

Download the new AutoUpgrade

Please download the newest version 20190620 of the AutoUpograde from:

and replace your current version with the new one (20190620..

The new version has 51 additional fixes. At the end of MOS Note: you’ll find a list of bugs fixed on X64_190620 update file.

Where

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Create and adjust the config file for AutoUpgrade 19c

Create and adjust the config file for AutoUpgrade 19cThis is the first of a series of blog post explaining the new AutoUpgrade utility step-by-step. You’ll find the tool and overview information in The New AutoUpgrade Utility in Oracle 19c

In this blog post here I will explain and demonstrate how you can create a sample config file and adjust it for a standard database upgrade.

You will see how to add additional options and change default settings. Furthermore, I will showcase how to change, adjust and tweak init.ora parameters during or after upgrade in the upcoming blog posts.

AutoUpgrade – Step-by-step

  1. The new AutoUpgrade Utility – Download,
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Oracle Database 19c (19.3.0) for Windows and zLinux is available

Oracle Database 19c (19.3.0) for Windows and zLinux is availableAs of now, Oracle Database 19c (19.3.0) for Windows and zLinux is available for download in addition to Linux, SPARC Solaris, HP-UX and AIX.

Oracle Database 19c on premises for Windows and zLinux

Oracle Database 19c (19.3.0) for Windows and zLinux is availableYou can download Oracle Database 19.3.0 on-prem for MS Windows and zLinux from the usual sources:

Oracle 19c Documentation

And of course you can find the Oracle 19c Documentation here:

See especially the operating system dependent install guides:

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In case you miss DBMS_OPTIM_BUNDLE … again …?!?

In case you miss DBMS_OPTIM_BUNDLE ... again ...?!?

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I’m tempted to copy and paste my blog post about DBMS_OPTIM_BUNDLE from February 2019, and exchange only 12.2.0.1 with 19c. But in this case the root cause is different. So this blog post is meant for Oracle 19.3.0 to be precise – in case you miss DBMS_OPTIM_BUNDLE … again … ?!?

Information about DBMS_OPTIM_BUNDLE

You will find a lot of information about DBMS_OPTIM_BUNDLE, what it does, since which release it exists and much more in these blog posts:

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Automatic SQL Plan Management in Oracle Database 19c

Automatic SQL Plan Management in Oracle Database 19cWhen you upgrade to a new database release, there will be changes. Some are obvious, others are not. This one is somewhere in between because it is documented quite well but not very well known yet as far as I see. I’m talking about the Automatic SQL Plan Management in Oracle Database 19c.

What is changing in Oracle 19c?

PLEASE READ THIS UPDATED BLOG POST:
https://mikedietrichde.com/2019/10/02/automatic-sql-plan-management-slight-change-with-19-4-0/
AS THERE IS A CHANGE WITH ORACLE 19.4.0.

First of all, I don’t want to rewrite everything Nigel Bayliss wrote in his detailed blog post about Automatic SQL Plan Management in Oracle 19c

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