Reposted by Chris Antogninialacourb.bsky.social @alacourb.bsky.social · 02/10/2026Looking forward for the next edition of @chris.antognini.ch book after his presentation at @soug.ch day in Zurich #besharing 031
Reposted by Chris AntogniniDani Schnider @danischnider.bsky.social · 02/10/2026Good idea for a Christmas gift: @chris.antognini.ch’s third edition of “Trobleshooting Oracle Performance” will be published on 21 December 081
Chris Antognini @chris.antognini.ch · 28/09/2026Apress has begun publishing information about TOP3. The waiting is almost over :-) link.springer.com/book/9798868...link.springer.comTroubleshooting Oracle PerformanceTroubleshooting Oracle Performance provides a systematic approach to diagnosing and resolving Oracle Database application bottlenecks. 081
Chris Antognini @chris.antognini.ch · 13/08/2026At least the temperature is decent at night. This summer, we already had over 50 nights with temperatures higher than 20°. Of course, that's a new record. 100
Reposted by Chris AntogniniChristoph Lutz @christophlutz.bsky.social · 31/07/2026Had a closer look at the implementation of the CURSORTRACE event... and encountered a few surprises: t.ly/jQG6Bt.lyUnderstanding the CURSORTRACE EventThe Oracle library cache is extensively instrumented, but the instrumentation is disabled by default. It can be enabled using the CURSORTRACE event, which is particularly useful for investigating libr... 022
Chris Antognini @chris.antognini.ch · 25/07/2026This is news about a legend that I completely missed! Fortunately, @economist.com filled that gap. 000
Reposted by Chris AntogniniDani Schnider @danischnider.bsky.social · 19/07/2026If you want to know how the new JOIN TO ONE syntax can help to reduce complexity of SQL queries and avoid incorrect results in star schemas, read my lastest blog post: danischnider.wordpress.com/2026/07/18/j...danischnider.wordpress.comJOIN TO ONE and Star SchemasOracle’s new JOIN TO ONE syntax offers several benefits for queries in star schemas. Let’s take a look at some typical use cases involving facts and dimensions, and see how the new join option can … 122
Chris Antognini @chris.antognini.ch · 15/07/2026Given how often you attend conferences, the probability is fairly high... 130
Reposted by Chris AntogniniThe Economist @economist.com · 30/06/2026Critics of AI complain when models make up confident-sounding but factually incorrect answers. When there is no factually correct answer, however, AI’s shortcomings can be even more pronounced and less easy to detectecon.stAI models’ values are very different from most people’sThey are more secular and more liberal—unless they’re made in China 095
Reposted by Chris AntogniniPhilipp Salvisberg @salvis.com · 29/06/2026Oracle provides an APEXlang compiler, but not a public parser for building custom tooling. Grisselbav’s APEXlang Parser fills that gap. In this blog post, I show how it enables static code analysis by detecting a security vulnerability in an Oracle APEX app. www.salvis.com/blog/2026/06...salvis.comDetecting Security Vulnerabilities With the APEXlang ParserIntroduction A parser for the APEXlang grammar enables the development of tools beyond the scope of the APEXlang compiler included in SQLcl, SQL Developer for VS Code, and ORDS. These tools can perfor... 041
Reposted by Chris AntogniniBrian Phillips @brianphillips.lol · 26/06/2026I wrote about the Reflecting Pooltheringer.comAmerica Is Trapped in the Grossest Pool Party of All TimeThe nation’s 250th birthday was supposed to be a celebration of all things red, white, and blue. Then the Reflecting Pool turned green. 1945992
Reposted by Chris AntogniniConnor McDonald on Database and SQL @connormcd.bsky.social · 17/06/2026The perfect guide to the oracle optimizer blogs.oracle.com/optimizer/or... Kudos @vldbb.bsky.socialblogs.oracle.com 063
Chris Antognini @chris.antognini.ch · 15/06/2026FWIW, I don't remember hearing anything specific about it after it was presented. 010
Reposted by Chris AntogniniConnor McDonald on Database and SQL @connormcd.bsky.social · 08/06/2026New video! For 99% of databases and 99% of the time, the default settings for the optimizer will be fine for your performance needs. But occasionally, you might need to divert to get the most out of it. youtu.be/hm3O7hgup4gyoutu.beTaking back control of optimizer statisticsYouTube video by SQL and Database explained! 131
Reposted by Chris AntogniniThe Economist @economist.com · 15/05/2026Settler crimes against Palestinians in the West Bank are “not just personal tragedies”, laments Nimrod Novik. They also undermine “Israel’s security, its moral fabric and its international standing”econ.stIn the West Bank, Israeli terror begets Palestinian terrorSettler violence undermines Israel’s security, its moral fabric and its global standing, argues Nimrod Novik 0135
Chris Antognini @chris.antognini.ch · 07/05/2026Thanks. Good to know. It means I can keep the reference about it in TOP3. 010
Chris Antognini @chris.antognini.ch · 07/05/2026According to my notes, the issue related to the (re)build of indexes is tracked with bug# 28292026. Unfortunately, I don't see it in MOS. I wonder whether it's still considered a bug... any comment @vldbb.bsky.social ? 320
Chris Antognini @chris.antognini.ch · 30/04/2026Mine was accepted, too. I'm looking forward to my first POUG! See you there. 180
Chris Antognini @chris.antognini.ch · 30/04/2026As an off-topic note, although the SQL Analysis Report is a version 23 feature, the SQL Analysis table is displayed as of version 21. So, I wonder what information the SQL Analysis table can display in version 21. 010
Chris Antognini @chris.antognini.ch · 29/04/2026I fully agree with you. The same is true for calls with a small group of people. Just keep the camera on. 110
Reposted by Chris AntogniniThe Economist @economist.com · 25/04/2026Israel’s defenders argue rightly that the Middle East has no simple diplomatic solutions. But the country’s overwhelming military superiority is not a solution in itselfecon.stThe high price of forever warsBinyamin Netanyahu is quick to start conflicts, but shows no ability to end them 3175
Reposted by Chris AntogniniTanel Poder @tanelpoder.com · 15/04/2026I've been busy in the last months! Announcing a brand new "Practical Exadata Performance" training course! I'm not aware of any other training *like this* offered in the world. 😎 Also, a *free* seminar! Exadata is an awesome platform, if used right! learn.tanelpoder.com 054
Chris Antognini @chris.antognini.ch · 16/04/2026As I can't see any advantage to using this feature over SQL trace and active session history, especially given the limited number of monitored SQL statements. To make it useful, a much better implementation is needed. 010
Reposted by Chris Antogniniknitting bee🐝 masked & vaxxed @knittingbee.bsky.social · 11/04/2026We couldn't have done it without her.💐 91589388
Chris Antognini @chris.antognini.ch · 01/04/2026There are several harvests per year. So, it depends ;-) 030
Chris Antognini @chris.antognini.ch · 01/04/2026I fully agree, it's a very good one. Since it’s set in the region where I live, it comes up in conversation quite regularly. 110
Reposted by Chris AntogniniToon Koppelaars @toonkoppelaars.bsky.social · 29/03/2026youtube.com/watch?v=mD1g... My favorites: #10 and #1. But all are spot on.youtube.com10 Relational Database Mistakes, RankedYouTube video by Decomplexify 132
Chris Antognini @chris.antognini.ch · 15/03/2026IMO it's even worse. Both things are true at the same time (lying and no clue). You can't believe anything he's saying. Ever. 020
Reposted by Chris AntogniniTanel Poder @tanelpoder.com · 13/03/2026Reasons why SELECT * is bad for SQL performance: An old blog (with Oracle-specific examples) with a whole range of reasons why. It's not only about network traffic and SQL plan execution, but client side processing and memory usage as well. tanelpoder.com/posts/reason... 4215
Chris Antognini @chris.antognini.ch · 11/03/2026Being prepared to improvise is essential during a presentation... 100
Chris Antognini @chris.antognini.ch · 24/02/2026IMO that's good news! Bitcoin mining is no longer profitable after crypto's latest downward turn, analyst says www.cnbc.com/2026/02/24/b...cnbc.comBitcoin mining is no longer profitable after crypto's latest downward turn, analyst saysBitcoin briefly sank below $63,000 on Tuesday, dragging down its miners alongside it. 070
Chris Antognini @chris.antognini.ch · 23/02/2026In this area you should also be aware of the difference between thin and tick driver... github.com/oracle/pytho...github.comdifferent thin/thick behaviour for arraysize and prefetchrows · Issue #218 · oracle/python-oracledbWhat versions are you using? platform.platform: Linux-6.2.0-26-generic-x86_64-with-glibc2.37 sys.maxsize > 2**32: True platform.python_version: 3.10.11 oracledb.version: 1.4.0 Is it an error or a h... 010
Chris Antognini @chris.antognini.ch · 23/02/2026First of all, there are not many important contacts to notify (at least for most people you are referring to who are unable to own their own domain). You can notify them. Second, you don't disable your old address when you start using the new one. This gives you months to react to things you forgot. 100
Chris Antognini @chris.antognini.ch · 23/02/2026You should not feel held hostage. In fact, you can move your emails somewhere else, and you can change your email address. No big deal. It's like moving to another place. We are used doing it and we don't care that much. NB: in any case, I'm happy to use my own domain since 1999. 100
Chris Antognini @chris.antognini.ch · 20/02/2026Also note that when the feature is enabled PDB-wide, I can disable and re-enable it using the ALTER SESSION statement. It seems that the implementation is rather peculiar... Also, the way buffers disappear and reappear when you disable and re-enable it is quite strange. 000
Chris Antognini @chris.antognini.ch · 20/02/2026Yes, things seem to work as expected when I enable it at the system level. 000
Chris Antognini @chris.antognini.ch · 20/02/2026Am I the only one who cannot activate SQL History at the session level in #OracleDatabase 26ai? The "ALTER SESSION SET SQL_HISTORY_ENABLED = TRUE" command runs successfully but has no effect... 200
Chris Antognini @chris.antognini.ch · 19/02/2026Yeap, since 12.2 using v$diag_trace_file_contents is the way to go. The only issue I'm aware with it is that lines that don't fit in the VARCHAR2(4000) are silently cut. 010
Chris Antognini @chris.antognini.ch · 15/02/2026English is the only one that matters to me (and, I guess, to Apress too). Additional languages depend on other publishers that are interested in buying the rights and pay for the translation. 000
Chris Antognini @chris.antognini.ch · 14/02/2026After a decade of planning, editing, delays due to my own busyness, further editing and waiting for 23c, the release of 26ai and my pre-retirement finally unblocked the situation. I have agreed with Apress to publish the third edition of Troubleshooting Oracle Performance in 2026. #TOP3 7335
Reposted by Chris AntogniniToon Koppelaars @toonkoppelaars.bsky.social · 01/02/2026www.youtube.com/watch?v=zSn8...youtube.comThe Rise of Oracle, SQL and the Relational DatabaseYouTube video by Asianometry 041
Chris Antognini @chris.antognini.ch · 02/02/2026From what I see, #OracleDatabase between version 23.3 and version 23.26.1 ships with a buggy TRCSESS script. To fix it, just correctly set the variable JDK_HOME at line 54. I seems that the problem was introduced by the change "adadhich 04/12/23 - use s_jdkLocation". 020
Chris Antognini @chris.antognini.ch · 02/02/2026This is an interesting case of censorship. The two images show the front covers of the same book. One was printed in Switzerland and the other by Amazon. I suppose Donald's ego is just too fragile. 010
Chris Antognini @chris.antognini.ch · 31/01/2026It was a great pleasure to have you at those events. Since I'm still 9.5 years away from reaching the official retirement age, plenty of things could happen. Anyway, I'll try my best to enjoy life ;-) 000
Chris Antognini @chris.antognini.ch · 31/01/2026I love(d) my job too. But, on the one hand, there are plenty of other things I want to do; on the other hand, I was more and more tired of the (uninteresting) business obligations. In any case, IT will be part of my future too... but only for fun or personal interests. 020
Chris Antognini @chris.antognini.ch · 31/01/2026The journey that began with Trivadis in 1999 ends today. It has been a great and memorable one. I had the chance to make so many positive experiences and meet great people inside and outside the company. But it's time for me to move on and enable pre-retirement mode. 4150
Reposted by Chris AntogniniMarkus Winand @winand.at · 28/01/2026I’m a simple man. While Oracle people are ecstatic about ASSERTION in the just released version 23.26.1 of the Oracle Database, I’m happy to see something as simple as FILTER :) 🧵 181