On the way home from #DOAG2025: We were too careful with the expected delay of Deutsche Bahn. So we habe 75 minutes to change in Munich. Time for a beer 😊

How do the data types of join columns affect query performance? @danischnider.bsky.social compares using Hashes as CHAR(32) and RAW(16) Sequences as NUMBER And finds in Oracle #SQL NUMBER is faster than RAW RAW is faster than CHAR

Full room at the „Fun with SQL“ session of @andreakennel.bsky.social at #DOAG2025

If you love your data then you have to love this feature. Presented by @toonkoppelaars.bsky.social who joined Oracle to make that happen. #DOAG2025

Coming in Oracle AI Database #SQL assertions These enable you to create cross row, cross table constraints with SQL standard syntax CREATE ASSERTION … CHECK ( [ NOT ] EXISTS ( <query> ) ) @toonkoppelaars.bsky.social explains at #DOAG2025

Learning from mistakes is important. Better: learn from others' mistakes. Even better: today we can learn from @danischnider.bsky.social 's ones #doag2025

🎤 Don’t miss DOAG Konferenz + Ausstellung 2025 — Nov 18–21, the premier event for database technologies in the German-speaking region! Join #OracleACE experts and industry leaders for in-depth sessions on Oracle tech, modern IT trends, open source, and more. 👉 anwenderkonferenz.doag.org/de/home/

Since last week, I can finally use the QUALIFY clause in Oracle. If you never heard of this SQL extension, read my newest blog post: danischnider.wordpress.com/2025/10/24/q...

Exciting to see Oracle ACEs featured as speakers at SOUG Day Zurich 2025 on October 23! 🇨🇭✨ Get ready for a day full of expert insights and networking with the Swiss Oracle community. Discover more: 🔗 soug.ch/event/soug-day-zurich-2025/ @helifromfinland.bsky.social @danischnider.bsky.social

A funny last session at #HrOUG2025 with SELECT AI Funhouse and @kibeha.dk

Last day at #HrOUG2025 starts with @salvis.com fighting with bad code

Fundamentals of Oracle security (and some drinks) with @chandlerdba.bsky.social at #HrOUG2025

Basic knowhow that every Oracle developer and DBA should know: how do transactions work in an Oracle database. @martinklierdba.bsky.social explains it in detail at #HrOUG2025

This is how a latch contention looks in real life. The @ora600pl.bsky.social way at #HrOUG2025

So many slides on a session of @ora600pl.bsky.social ? Something must be wrong here. Let‘s see… #HrOUG2025

After lunch break session at #HrOUG2025 about CI/CD using #SQLcl, presented by @apexconsulting.nl (with a very nice t-shirt, by the way)

If you are at #HrOUG2025 and don‘t speak Croatian, you are probibly interested in this additional session tomorrow

Quiet moment during the #HrOUG2025 conference

Lot if interest in deep diving into performance of views by @danischnider.bsky.social at #HrOUG2025

#HrOUG2025 @fsarcos.bsky.social talks about dragons and PDB failover approaches in Oracle 23ai (aka 26ai)

I still like this session of chandlerdba.bsky.social about Exadata alternatives and why Exadata is still the cheapest and best solution. Once again at #HrOUG2025

Looking forward the the 30th anniversary of a wonderful conference #HrOUG2025

Almost there… #HrOUG2025 Just arrived in Rovinj in time thanks to the professional „Grisselbav Tours“ driver @salvis.com with co-pilot @andreakennel.bsky.social

@danischnider.bsky.social erzählt uns in einem Kurz-Interview von seiner großen Begeisterung für die #DOAG2025 in Nürnberg. ➡️ scomp.ly/jPg3bBb Die Anwenderkonferenz 📍DOAG 2025 Konferenz + Ausstellung | Nürnberg Convention Center 📅 18.–21. November 2025 🔗Anmeldung | scomp.ly/YAj48bE

Datenbankpannen made in Switzerland: Von DropTable bis Split-Brain – Teil 2 unserer DOAGtv-Geschichten mit Martin Klier, @stefanoehrli.bsky.social und @danischnider.bsky.social zeigt, wie Recovery-Nächte auch mal mit Pizza enden ➡️ scomp.ly/Y3DVQmY

Von #SQL-Horror bis Dialekt-Wirrwarr: Die erfahrenen Oracle-Experten und ACEs @stefanoehrli.bsky.social, @danischnider.bsky.social und Martin Klier sprechen im DOAGtv 🎥 über #Datenbank Pannen, #Performance Fallen und wie Humor beim #Recovery hilft. Teil 1/2 ➡️ youtu.be/a8uolY6Or1U

Back home after #POUG2025 Many good discussions, high-quality presentations - and some beers and whiskies 😊 I need some time to sort all these impressions - and I already have an idea for a new session on #POUG2026

It was a wonderful conference again! Thanks to @ora600pl.bsky.social @luizafrompoland.bsky.social and the whole POUG team for organizing #POUG2025

Premiere at #POUG2025: @jloracle.bsky.social shows pictures on his slides 😁

Its weird to meet the kids of old people on conferences 😉 #HrOUG2024 #POUG2025

Join the Oracle ACEs at POUG 2025 this week in Poznań. Knowledge, lectures, discussion and networking for two full days! Join them now ♠️ 👉 poug.org/en/edycja/po... #OracleACE @edelweissk.bsky.social @ora600pl.bsky.social @julianfrey.ch @danischnider.bsky.social @chandlerdba.bsky.social

One of my summer projects was to read "Data Engine Thinking", a new book by Dirk Lerner and Roelant Vos on the methodology for developing a data solution. A short review of this book you can find on my blog. danischnider.wordpress.com/2025/08/22/b... @dv-modeling.bsky.social

With Oracle database 23.9, we can finally use GROUP BY ALL in our SQL queries, as you can read in my latest blog post: danischnider.wordpress.com/2025/08/05/o...

Members of @sym42.bsky.social on tour in Transylvania 🧛‍♂️ @andreakennel.bsky.social @mirelarooug.bsky.social @danischnider.bsky.social

An informative day at the #TDWI conference in Munich, organized by #DDVUG (German Data Vault User Group), fully packed with bitemporal data integration. Presentations about concepts, design patterns and practical experience.

Another year, another certificate: I'm happy to still be part of the #OracleACE community 😊 @oracleace.bsky.social @sym42.bsky.social

We know that beer & database are a perfect pairing 🍻 At #POUG2025, @danischnider.bsky.social will walk you through a real-life brewery use case to show how Data Use Case Domains in Oracle 23ai can organize, secure, and simplify your data like never before. poug.org/edycja/poug-...

Build a solid foundation for star schemas in Oracle Database with these guidelines by @danischnider.bsky.social Dimension Primary key on the surrogate key Unique constraint on the business key column(s) Facts Foreign key & a bitmap index on each dimension column

After #MakeIT2025 conference: Istrian breakfast with all local products

Last session at #MakeIT2025: Performance Grand Prix by @monikalewandowska.bsky.social - who will win the race?

Can 👉you👈 do better than both @danischnider.bsky.social and #ChatGPT? All the tables and data used in that #SQL battle is available at github.com/kibeha/pract... (Companion code repository for the book Practical Oracle SQL amazon.com/dp/1484256166) May the best intelligence win 🤓

Who will win? @andreakennel.bsky.social , @danischnider.bsky.social or #ChatGPT? We'll see.

Day 2 of #MakeIT2025 starts with block corruption. Fortunately not in real, but in the presentation of @cgohmannde.bsky.social

I finish the first day of #MakeIT2025 like I started it: with a session of @andrejsql.bsky.social. This time he talks about parameterized views in Oracle

Different ways to open a beer bottle: @ora600pl.bsky.social talks about „low level stuff“ at #MakeIT2025

How can we help the Oracle optimizer to do better with function calls? @danischnider.bsky.social explains. #makeit2025

Why CI/CD? @apexconsulting.nl (the one the left) will explain us at #MakeIT2025

Who is this green guy on the screen? The guy on stage is @chandlerdba.bsky.social who will talk about Oracle block internals at #MakeIT2025

It's time for a deep dive with @danischnider.bsky.social at #MakeIT2025 @oracleace.bsky.social @sym42.bsky.social

@danischnider.bsky.social is diving deep into the performance of views at #MakeITConf 2025 in Portoroz, Slovenia