Patch Recommendation

ORA-39405 with impdp when you have mixed time zone versions

Today, Gisela, a former team mate from CSS/ACS Support contacted me regarding an issue seen at a customer. She reported an ORA-39405 with impdp when you have mixed time zone versions. But how can this happen? And what are the potential workarounds? Since some of our hosted environments got into the same situation already, this may be worth a blog post and some explanation.

Why does this happen?

You never cared about DST (Daylight Savings Time) files and versions of your database? This isn’t unusual, and in many environments actually not a problem …

Continue reading...

datapatch stores rollback patching files in the database

I held back this blog post for a longer while. A customer (Thanks Jannes!) reported this to me many months ago but the fix was not as trivial as we thought initially, and there were several unlucky circumstances delaying it multiple times. But now it is time to tell you how datapatch stores rollback patching files in the database. And of course, how to cleanup.

Why is this important?

At first, you may ask yourself: Why should I care? And you are right. This is normally nothing you should care about. …

Continue reading...

The downsides of in-place patching – and a patching lab

Happy New Year to all of you at first. I hope you all had a good start – and for myself, I promise to blog a bit more again in 2024. Let me start with my first post since I received a question very often: Why should I patch out-of-place with a new Oracle Home? Since I need to patch a bit today I can easily show the downsides of in-place patching – and a patching lab.

It all started at OCW 2023

Ok, we didn’t really start it at OCW 2023 in

Continue reading...

Important clarifications to the Oracle Database Error Correction Policy

When I came back from vacation a few weeks ago (or was it almost 2 months ago??) I learned that we have added some Important clarifications to the Oracle Database Error Correction Policy. The clarifications are mainly about how long you will be able to request a single fix for a given Release Update (RU). Take this not as a constraint but a motivation to argue internally to not stay on too old Release Updates.

Important clarifications to the Oracle Database Error Correction Policy

Photo by Saul Macias on Unsplash

 

How to find the important notes?

It is not easy to find this important note in MOS, …

Continue reading...

How many fixes are you missing?

Since we’ve had a public holiday in Germany yesterday, this feels almost like my Monday-morning-rant blog post. But seriously, this question came up so many times the past weeks. And I think it is worth a blog post to answer the question: How many fixes are you missing?

How many fixes are you missing?

Photo by Paul Hutton on Unsplash

Why would you want to know?

To be frank, customers I discussed the patch bundle topic with recently are often not interested in knowing how many fixes they are missing. Discussions quickly emerge into “quality” or “ease” or “cost” for how to apply patches. But rarely …

Continue reading...

You may need to run root.sh again after RU patching

With the Oracle Critical Patch Update Advisory – July 2023 – you may have spotted a change in the Database Release Update READMEs: You may need to run root.sh again after RU patching. Why is that?

Let us have a quick look

I verified this with the 19.20.0 README on Linux. But I guess this applies to the other READMEs as well. Please bare in mind that this applies to the Database RUs only, not to Grid Infrastructure. You can find this new paragraph in it:

3.3.5 Update Permissions for extjob

Continue reading...

Patch Download Assistant has now MRPs as well

You gave feedback – we discussed it, and Muthu implemented it right away. This will be a shorter blog post about one of our most favorite MOS notes, MOS Note: 2118136.2 since the Patch Download Assistant has now MRPs as well.

What is the Download Assistant all about?

We call MOS Note: 2118136.2 – Assistant: Download Reference for Oracle Database/GI Update, Revision, PSU, SPU(CPU), Bundle Patches, Patchsets and Base Releases one of our top 5 MOS notes because it is so handy. You need to download an RU? 3 clicks later you download it. …

Continue reading...

Patching to Oracle 19.19.0 out-of-place with additional patches

From all my quarterly blog posts you know that I patch usually in-place for space and other reasons. And you may have similar reasons when you patch. But it is not ideal – and just speaking about risk and downtime, you should always patch out-of-place. So let me show you how Patching to Oracle 19.19.0 out-of-place with additional patches works.

What do I need?

Actually, this is not complicated at all. And if you never done it this way, give it a try now please.

  • Base release Oracle Database 19.3.0 image
  • opatch 37 from
Continue reading...

Patching process changes with MRPs

I blogged about the Monthly Recommended Patches (MRP) several times before. And due to the feedback you and we had given, a few things got changed. The main change is from having the MRP bundled as a system patch making opatchauto a requirement. See below what Patching process changes with MRPs were implemented recently.

Before …

As you could read already in:

the introduction of the MRPs added one major flaw: They’ve been built as system patches which made …

Continue reading...

Cleaning up older patch artifacts – improving opatch performance

This blog post is about a feature not only I but you did ask for actually for a long time. Cleaning up older patch artifacts – improving opatch performance. Both in one opatch release. And opatch 12.2.0.1.37 from April 2023 has it.

A little bit of history

One of the longest journey I had ever done in my long time in Oracle was helping customers to find a voice for patch cleanup. Oracle 19c is a long term support release. Many customers upgraded to it already. And you apply patches on a regular …

Continue reading...

Virtual Classroom Seminar 16: Release and Patching Strategy for Oracle 19c and 23c

There are just two days left to sign up for our Virtual Classroom Seminar 16: Release and Patching Strategy for Oracle 19c and 23c. We’ll talk to you on Wednesday, May 10 at 16:00h CET.

What’s the topic?

We’ll try to cover everything for your best release and patching strategy with Oracle Database 19c of course, but also moving forward to Oracle Database 23c. Our big focus will be several aspects of patching. You’ll hear us talking not only about standard database patching but especially about patching in RAC environments.

We’ll put together a …

Continue reading...

A patch (RU, OJVM, 32-bit) is not available yet – where will I find information?

A longer while ago I wrote a blog post about the topic that a patch (RU, OJVM, 32-bit) is not available yet – where will I find information? But I wrote it too specific. And it is even hard for me to find my older blog post. Since several of you mailed me the past weeks with a variety of questions regarding patch availability I decided to write down my thoughts – but this time in a more generic way. And I hope it is helpful.

Why are patches missing?

At first, I …

Continue reading...

Oracle Optimizer Statistics Advisor in Oracle 19c

Christian Pfundtner pointed me to the fact that my old blog post about the Statistics Advisor from 2017 may not be up to date anymore. And he further pointed out that some of his clients still suffer from issues with the tool. Hence, let me refresh the topic with Oracle Optimizer Statistics Advisor in Oracle 19c. And thanks to Christian for the pointers.

 

Overview

At first, I won’t rewrite the entire blog post but instead focus on recent findings. Therefore, you may please want to read my previous blog post about the …

Continue reading...

ORA-13516 “CATPROC not valid” during datapatch or autoupgrade to 19.18.0

I thought I could relax this week using my leftover vacation days from 2022. But this issue is triggering me since some of you mailed me already. Maybe this blog post can prevent others from being trapped by this issue: ORA-13516 “CATPROC not valid” during datapatch or autoupgrade to 19.18.0. And as a prolog, you will NOT see the below issue when you started your database in NORMAL mode for the execution of datapatch.

 

What is the symptom?

Regardless of whether you patch to Oracle Database RU 19.18.0 manually or with …

Continue reading...

Hide and Seek with RU 19.18.0

One and a half weeks ago we released the Database and Grid Infrastructure Release Updates (RU) 19.18.0. You could read on the blog how to apply it, and you could read also about an alert. So far, all was more or less transparent but apparently sort of an Hide and Seek with RU 19.18.0 has happened. So let me shed some light.

Heads Up!

I am just the messenger trying to bring some light into the topic. Neither is our team responsible nor do we have any sort of control on this process. I …

Continue reading...

Suppress nasty error messages and traces during datapatch

A few days ago I published my quarterly blog post in the series of Patching all my environments … And I mentioned that datapatch took a bit longer for 19.18.0 than usual. In the alert I’ve had nasty error messages or warnings. And Walter (thanks!) commented immediately with some advice.

 

What are these messages?

Actually, I saw them before already. Since I always create CUSTOM databases with a template I spotted those warnings the first time when I was wondering why DB creation took so abnormally long with Multitenant. I discovered KGL Heap …

Continue reading...

MRP3 for Oracle 19.17.0 adds an interesting surprise

You may have read my previous blog posts about MRPs (Monthly Recommended Patches). And today I did a quick check with Rodrigo. We both were a bit surprised to have the MRP3 for 19.17.0 add a lot of fixes to a standard RDBMS installation. So we were investigating a bit further. As a teaser, read on to see that MRP3 for Oracle 19.17.0 adds an interesting surprise.

 

How did we find out?

The MRP3 for Oracle Database 19.17.0 got released just a week ago. You can navigate to it via MOS

Continue reading...

Patching my environments with the January 2023 Bundle Patches

Mid-of January. It’s patching time again. So let me show you the quarterly exercise of Patching my environments with the January 2023 Bundle Patches. Let’s see this time if I will have to remove my Data Pump Bundle Patch and the 19.17.0 MRP2 at first when I patch in-place.

Patching my environments with the January 2023 Bundle Patches

Photo by karokrasinska 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

Continue reading...

Important alert for Oracle Database and GI RU 19.18.0 on Linux

Some of you may have seen the alert already released yesterday. And thanks to Peter Lehmann again for alerting me. When you logon to MyOracle Support, you will find it simply in the alert section to the left. On Jan 25, 2023, this Important alert for Oracle Database and GI RU 19.18.0 on Linux has been released.

Important alert for Oracle Database and GI RU 19.18.0 on Linux

Photo by Gary Bendig on Unsplash

 

What is the situation?

Due to an issue described in MOS Note: 2923428.1 – LMON trace file with repeated entries of “Submitting asynchronized dump request” the Release Updates (RU) 19.18.0 for the Oracle Database and …

Continue reading...

RUs contain now all available DST patches

At first, Happy New Year everybody. There was silence on the blog for some weeks but I took an extended longer time off. Well, and once you return, there are some emails in your inbox which need some work. You’ll see several new blog posts getting published in the coming days. Back to normal, yesterday night RU 19.18.0 among other patch bundles has been released. And there’s a huge fantastic surprise in it: RUs contain now all available DST patches.

 

What’s the story?

There are some good news. We discussed this internally …

Continue reading...

Applying the MRP from December 2022 to Oracle 19c

Well, couldn’t there be a nicer pre-Christmas present than the December 2022 Monthly Recommended Patches (MRP)? You know, I’m just kidding. But since I received the first questions from customers – and before I send an email internally – I wanted to try out Applying the MRP from December 2022 to Oracle 19c.

 

Download the December MRP

Actually you need to access MOS Note: 888.1 -Primary Note for Database Proactive Patch Program since the link is not in MOS Note: 555.1 – Oracle Database 19c Important Recommended One-Off Patches even though it …

Continue reading...

Data Pump Bundle Patches: You may need to download and apply again

The Data Pump Bundle Patches get released on top of every RU since over a year now. But a real issue with missing files got detected recently. So in case you had applied Data Pump Bundle Patches: You may need to download and apply again.

 

What is in the Data Pump Bundle Patch?

The Data Pump Bundle Patch is a convenient and very useful vehicle to apply Data Pump patches which are usually not included in a Release Update (RU). While RUs are per definitionem RAC-rolling and Standby-First, the Data Pump Bundle …

Continue reading...

Applying the first MRP for Oracle 19.17.0

A few weeks ago I blogged about the fact that we retired the RURs, and instead release the MRPs (Monthly Recommended Patches). In my previous blog post about this topic you’ll find also an FAQ hopefully answering all the questions you may have (had). And now it is mid of November, so I can show you the process of applying the first MRP for Oracle 19.17.0.

 

How do you get access to the MRPs?

At the moment while I write this, you can find the MRPs only in MOS Note: 888.1 -Primary

Continue reading...

Patching all my environments with the October 2022 Bundle Patches

Oh yes, it is patching time (again). And this time I somehow missed the slot since the quarterly critical patch updates got released right during Oracle Cloud World. Since I didn’t want to stretch the hotel WiFi too much – and since I wouldn’t have had enough time to install and write-up this blog post, I do it now with a week of delay. So as usual every quarter, follow me for patching all my environments with the October 2022 Bundle Patches.

As usual, an important annotation upfront: I patch in-place due to …

Continue reading...