Vice President Product Management - Database Upgrade, Migrations and Patching - Oracle Corp | Opinions are my ownhttps://bsky.app/profile/mikedietrichde.comhttps://bsky.app/profile/mikedietrichde.com/post/3muz42odmkv2aWhy is the fix for bug nnn not included in any RU? Christian asked this question today. Specifically, in his case for Bug 26749785 - PERF_DIAG: NEED TO HAVE MORE CONTROL IN DICTIONARY FOR AUTO_STATS_ADVISOR_TASK. Several of his customers suffer from this issue, and they repeatedly need to ask for… https://mikedietrichde.com/2026/09/08/why-is-the-fix-for-bug-nnn-not-included-in-any-ru/08 Sep 2026 13:13 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3muz42odmkv2ahttps://bsky.app/profile/mikedietrichde.com/post/3muom2rfsox2uGI 19.31 and 19.32: trace file flooding in mgmtca.trc can happen Thanks to Peter Lehmann who always alerts me about findings and encounters he had in his test and production RAC cluster environments. Peter dropped me an email the other day, and I share his suspicion that this may effect many in… https://mikedietrichde.com/2026/09/04/gi-19-31-and-19-32-trace-file-flooding-in-mgmtca-trc-can-happen/04 Sep 2026 09:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3muom2rfsox2uhttps://bsky.app/profile/mikedietrichde.com/post/3mulzvi7o3t2cUpgrade / Migration / Patching Workshops in Warsaw and Prague on Sep 7 and 8 Quick blog post today since we still have a few remaining seats open and available for next week for the Upgrade / Migration / Patching Workshops in Warsaw and Prague on Sep 7 and 8, 2026. Your chance to sign up now and… https://mikedietrichde.com/2026/09/03/upgrade-migration-patching-workshops-in-warsaw-and-prague-on-sep-7-and-8/03 Sep 2026 08:30 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mulzvi7o3t2chttps://bsky.app/profile/mikedietrichde.com/post/3mujohgcu462cCan I apply an RU to a home with an MRP? This question came up by a customer, and it was referring to the FAQ MOS note for MRPs. In brief, it was stated that you could apply a higher RU into a home where an MRP up to MRP3 had been installed in the previous home. So the question raised to me was:… https://mikedietrichde.com/2026/09/02/can-i-apply-an-ru-to-a-home-with-an-mrp/02 Sep 2026 10:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mujohgcu462chttps://bsky.app/profile/mikedietrichde.com/post/3muh62myamt2cHow to rollback an MRP You know, I am not a fan of in-place patching. Actually, I think everyone should always patch out-of-place. But I know that for instance EBS with a 19c database requires in-place patching, and out-of-place will be supported only with 26ai for EBS. Therefore, in relation to… https://mikedietrichde.com/2026/09/01/how-to-rollback-an-mrp/01 Sep 2026 10:01 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3muh62myamt2chttps://bsky.app/profile/mikedietrichde.com/post/3mtt2pbllfb2cMore clarifications on RUs, MRPs and CSPUs There are questions coming in from time to time, and I see that not everything can be always covered in an FAQ document. But we try our best. And sometimes, there are questions even I need to think twice before I answer. Here is the newest for More… https://mikedietrichde.com/2026/08/24/more-clarifications-on-rus-mrps-and-cspus/24 Aug 2026 10:08 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mtt2pbllfb2chttps://bsky.app/profile/mikedietrichde.com/post/3mtghxm6otb2hORA-600 [] and ORA-8103 errors can happen after TTS Import into 19c This is not a new finding - and it is a very rare error. But you may only find it days, months or even years after a TTS migration has been completed. You may see a rare corruption issue, and it may sleep in your database. The… https://mikedietrichde.com/2026/08/19/ora-600-and-ora-8103-errors-can-happen-after-tts-import-into-19c/19 Aug 2026 10:01 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mtghxm6otb2hhttps://bsky.app/profile/mikedietrichde.com/post/3mtejhqpf3x23LAOUC 2026: Paraguay, Brazil and Uruguay In a week from now I should arrive in Asuncion, Paraguay, if all goes well. It it time for the Latin America Oracle User Group tour 2026 - and it has been started already going from north to south. I will participate in three stops at LAOUC 2026: Paraguay,… https://mikedietrichde.com/2026/08/18/laouc-2026-paraguay-brazil-and-uruguay/18 Aug 2026 15:22 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mtejhqpf3x23https://bsky.app/profile/mikedietrichde.com/post/3msx7uux4mt2mNew AutoUpgrade version 26.5 is available (plus 26.4) I totally forgot to announce the 26.4 version of AutoUpgrade. And now, the new AutoUpgrade version 26.5 is available (plus 26.4) already. The AutoUpgrade Development team did an amazing job in shortening the release cycle. This way, we can… https://mikedietrichde.com/2026/08/13/new-autoupgrade-version-26-5-is-available-plus-26-4/13 Aug 2026 08:26 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3msx7uux4mt2mhttps://bsky.app/profile/mikedietrichde.com/post/3mqtijxedub23Long-Term Release Updates are paused Since several customers asked me about it, I realized that I have never blogged about LTRUs - and as of now, Long-Term Release Updates are paused. Let me explain what the concept meant, where you can find information about it and what it would mean in your… https://mikedietrichde.com/2026/07/17/long-term-release-updates-are-paused/17 Jul 2026 10:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mqtijxedub23https://bsky.app/profile/mikedietrichde.com/post/3mqqreweiyx2sJoin us in Bengaluru and Hyderabad for SANGAM 2026 Many of you may have seen the social media posts already. But just in case you were in doubt, please get your ticket asap and join us in Bengaluru and Hyderabad for SANGAM 2026 this weekend. AIOUG (All India Oracle User Group - or more modern, AI… https://mikedietrichde.com/2026/07/16/join-us-in-bengaluru-and-hyderabad-for-sangam-2026/16 Jul 2026 08:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mqqreweiyx2shttps://bsky.app/profile/mikedietrichde.com/post/3mqoxezbs2h2yUpgrade to 26ai may hang due to block checking events This issue is caused by an internal change, and we hit this now with two very large customer upgrades recently. Therefore, I would like to point to a fix, a workaround and the following RU in case you see your Upgrade to 26ai may hang due to… https://mikedietrichde.com/2026/07/15/upgrade-to-26ai-may-hang-due-to-block-checking-events/15 Jul 2026 14:42 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mqoxezbs2h2yhttps://bsky.app/profile/mikedietrichde.com/post/3mqjgqj5ya52vCDB upgrades – explaining catctl_options When you upgrade your entire CDB with AutoUpgrade, there is a parameter which allows you some tuning or tweaking. And I often see some misunderstanding here. Therefore, for CDB upgrades - explaining catctl_options is my focus today. catctl_options - what it… https://mikedietrichde.com/2026/07/13/cdb-upgrades-explaining-catctl_options/13 Jul 2026 10:01 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mqjgqj5ya52vhttps://bsky.app/profile/mikedietrichde.com/post/3mq7esljqai26AutoUpgrade Patching – From Zero to Hero – Part 4: Download Examples Let me take off into the 4th part of this blog post series: AutoUpgrade Patching – From Zero to Hero – Part 4: Download Examples. I'd like to show you some of the most common examples and use cases we came across. And of course,… https://mikedietrichde.com/2026/07/09/autoupgrade-patching-from-zero-to-hero-part-4-download-examples/09 Jul 2026 10:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mq7esljqai26https://bsky.app/profile/mikedietrichde.com/post/3mq4uewxzsf26AutoUpgrade Patching – From Zero to Hero – Part 3: Download Patches You completed Part 1 and Part 2 of this blog post series already? Then you are ready for AutoUpgrade Patching - From Zero to Hero - Part 3: Download Patches. Let us start simple, and then increase the scope to fetch the patches… https://mikedietrichde.com/2026/07/08/autoupgrade-patching-from-zero-to-hero-part-3-download-patches/08 Jul 2026 10:01 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mq4uewxzsf26https://bsky.app/profile/mikedietrichde.com/post/3mq2g27553l2aAutoUpgrade Patching – From Zero to Hero – Part 2: MOS Credentials In this blog post series AutoUpgrade Patching - From Zero to Hero - Part 2: MOS Credentials will be our topic for today. If you are tired of going through MOS notes over and over again to identify the most important fixes and fetch… https://mikedietrichde.com/2026/07/07/autoupgrade-patching-from-zero-to-hero-part-2-mos-credentials/07 Jul 2026 10:39 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mq2g27553l2ahttps://bsky.app/profile/mikedietrichde.com/post/3mnyqmu5o5g2rHow to deal with statistics when you migrate? Have you done migration projects in the past, or do you have some upcoming projects, and you wonder how you should treat all sorts of statistics in your database? What is the better option? Keep and migrate the existing ones? Regather them right away?… https://mikedietrichde.com/2026/06/11/how-to-treat-statistics-when-you-migrate/11 Jun 2026 07:52 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mnyqmu5o5g2rhttps://bsky.app/profile/mikedietrichde.com/post/3mnuawcwg5e2tCPU, CSPU, MRP, RU – some clarifications I just returned from a 2 week vacation in Asia this weekend. And I was following from a distance. On May 28, the first CSPUs got released, some MOS notes got published. There are a lot of patching options now. CPU, CSPU, MRP, RU - some clarifications may be… https://mikedietrichde.com/2026/06/09/cpu-cspu-mrp-ru-some-clarifications/09 Jun 2026 13:01 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mnuawcwg5e2thttps://bsky.app/profile/mikedietrichde.com/post/3mmr2fabn3b24DBMS_OPTIM_BUNDLE – what it shows, and what oradiff lists I blogged multiple times about DBMS_OPTIM_BUNDLE, the package to work with the Fix Control Persistence (FCP) framework in the database. And we also gave recommendations over the years that you need to test carefully when you are going to… https://mikedietrichde.com/2026/05/26/dbms_optim_bundle-what-it-shows-and-what-oradiff-lists/26 May 2026 13:01 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mmr2fabn3b24https://bsky.app/profile/mikedietrichde.com/post/3mm6zp7auxd25Grid Infrastructure: Bye Tomcat – welcome Micronaut Anil Nair wrote it in his MAA Blog Post on April 28: "Oracle is simplifying the software stack by replacing Apache Tomcat application server with Micronaut framework.". And since some of you asked already, let me give you a bit more information… https://mikedietrichde.com/2026/05/19/grid-infrastructure-bye-tomcat-welcome-micronaut/19 May 2026 09:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mm6zp7auxd25https://bsky.app/profile/mikedietrichde.com/post/3mlveqp5kcq2bDoes OJVM patching fail again with ORA-1403 in 19.31? Some of you had been trapped by ORA-1403 during patching to Oracle Database 19.30. I blogged about this in February this year, and I had to update the blog post a few times until we collected all the issues. The root cause got fixed and… https://mikedietrichde.com/2026/05/15/does-ojvm-patching-fail-again-with-ora-1403-in-19-3103-in-19-31/15 May 2026 12:51 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mlveqp5kcq2bhttps://bsky.app/profile/mikedietrichde.com/post/3mlpogun6ht25RU 19.31 has been put on hold and will be available soon again Since several people mailed me yesterday and this morning about Release Update 19.31 been not available for download from My Oracle Support, here is a the explanation about why RU 19.31 has been put on hold and will be available soon… https://mikedietrichde.com/2026/05/13/ru-19-31-has-been-put-on-hold-and-will-be-available-soon-again/13 May 2026 06:29 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mlpogun6ht25https://bsky.app/profile/mikedietrichde.com/post/3mkzee3pdwl25Patch your databases against AI-enabled cybersecurity threats I guess you all read the announcements and predictions over the past weeks. New AI models and improvements to existing models may allow to find security issues in existing software much quicker. While this sounds alarming on one side… https://mikedietrichde.com/2026/05/04/patch-your-databases-against-ai-enabled-cybersecurity-threats/04 May 2026 09:30 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mkzee3pdwl25https://bsky.app/profile/mikedietrichde.com/post/3mk5jhhci6m2oApril 2026 Release Updates (RUs) 19.31 and 23.26.2 are delayed Yesterday, I delivered a full-day workshop for ora2know in Düsseldorf. And we discussed the most recent RUs as well, especially since "Database Patching" consumed a significant part of the day content-wise. I learned that the RUs have… https://mikedietrichde.com/2026/04/23/april-2026-release-updates-rus-19-31-and-23-26-2-are-delayed/23 Apr 2026 07:47 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mk5jhhci6m2ohttps://bsky.app/profile/mikedietrichde.com/post/3mhxml4u7ob2tUpcoming in-person workshops in Düsseldorf, London, Vienna, Utrecht and Brussels I am ready to take off for some vacation soon. But I'd like to share with you a list of the upcoming workshops we are offering. All those events are in-person events - except the Virtual Classroom Seminar I will list… https://mikedietrichde.com/2026/03/26/upcoming-in-person-workshops-in-dusseldorf-london-vienna-utrecht-and-brussels/26 Mar 2026 12:36 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mhxml4u7ob2thttps://bsky.app/profile/mikedietrichde.com/post/3mhda5ix4hn23OCW 19.28 contains a tiny behavior change with DB_UNIQUE_NAME A colleague brought this to my attention the other week. And since the blog serves also as my partial memory, I wanted to put this out quickly. It is not a big deal, and most of you will never see this or be affected by it. Still, some… https://mikedietrichde.com/2026/03/18/ocw-19-28-contains-a-tiny-behavior-change-with-db_unique_name/18 Mar 2026 10:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mhda5ix4hn23https://bsky.app/profile/mikedietrichde.com/post/3mhaoitli7h22Does AutoUpgrade support the MOVE option? Sometimes you have different plans for the day. Or, in my case, the day just needs a few extra hours. Today, I received a very interesting question on the blog at first by a customer I know very well. Then we exchanged mails - and I was caught by… https://mikedietrichde.com/2026/03/17/does-autoupgrade-support-the-move-option/17 Mar 2026 09:39 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mhaoitli7h22https://bsky.app/profile/mikedietrichde.com/post/3mgmsmxkpkp23Sign up for the next Virtual Classroom Seminar: Patch Smarter, Not Harder Some of you may have realized: We moved the Virtual Classroom Seminar #27 from its original date in February to March 12 this week. Usually we don't do this - but we ended up with so much content. If you haven't already, it… https://mikedietrichde.com/2026/03/09/sign-up-for-the-next-virtual-classroom-seminar-patch-smarter-not-harder/09 Mar 2026 12:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3mgmsmxkpkp23https://bsky.app/profile/mikedietrichde.com/post/3meq5ezd24j2kDon’t use AI to build your AutoUpgrade config file, please! Let me do a quick Friday rant. Many of you can easily ignore this. But regardless of whether you are a colleague, a friend, a customer, a partner or just exploring AutoUpgrade because it is the coolest small tiny little tool Oracle has to… https://mikedietrichde.com/2026/02/13/dont-use-ai-to-build-your-autoupgrade-config-file-please/13 Feb 2026 09:00 +0000at://did:plc:d7673w456ej7c4ccmvmkuod7/app.bsky.feed.post/3meq5ezd24j2k