Philipp Hartenfeller
@hartenfeller.dev
🖥️ Web & DBs | Oracle APEX
📝 Blog: http://hartenfeller.dev/blog
💼 Product Lead @united-codes.com
♠️ Oracle ACE Pro
🎥 https://www.youtube.com/@united-codes
📝 Blog: http://hartenfeller.dev/blog
💼 Product Lead @united-codes.com
♠️ Oracle ACE Pro
🎥 https://www.youtube.com/@united-codes
Pinned
Philipp Hartenfeller
@hartenfeller.dev
· Sep 17
Build Real AI Solutions with Oracle PL/SQL (No 23ai Required)
Learn how data engineers can leverage AI for Oracle automation using PL/SQL. Discover structured output, file analysis, reasoning, and tool calling with the open-source UC AI SDK.
hartenfeller.dev
New blog post, my longest one ever. A full guide on how to use AI as a PL/SQL developer.
- No 23ai or Python required
- Advanced techniques like tools, structured output, reasoning, and file analysis
- Usage demos
hartenfeller.dev/blog/real-ai...
#oracle #ai #orclAPEX
- No 23ai or Python required
- Advanced techniques like tools, structured output, reasoning, and file analysis
- Usage demos
hartenfeller.dev/blog/real-ai...
#oracle #ai #orclAPEX
Anthropic just dropped v2 (kind of) of tools/function calling for AI. I will look forward to implement it in UC AI: www.anthropic.com/engineering/...
Introducing advanced tool use on the Claude Developer Platform
Claude can now discover, learn, and execute tools dynamically to enable agents that take action in the real world. Here’s how.
www.anthropic.com
November 25, 2025 at 8:17 AM
Anthropic just dropped v2 (kind of) of tools/function calling for AI. I will look forward to implement it in UC AI: www.anthropic.com/engineering/...
Adding an AI disclaimer to my blog.
I also think one way to keep blogging fun and meaningful is getting more personal. I often read others' blogs because I value their thinking and personal touch. For an LLM, it is easy to just restate some neutral facts.
I also think one way to keep blogging fun and meaningful is getting more personal. I often read others' blogs because I value their thinking and personal touch. For an LLM, it is easy to just restate some neutral facts.
November 23, 2025 at 7:17 PM
Adding an AI disclaimer to my blog.
I also think one way to keep blogging fun and meaningful is getting more personal. I often read others' blogs because I value their thinking and personal touch. For an LLM, it is easy to just restate some neutral facts.
I also think one way to keep blogging fun and meaningful is getting more personal. I often read others' blogs because I value their thinking and personal touch. For an LLM, it is easy to just restate some neutral facts.
How to display markdown (including tables and more) with our free @united-codes.com #orclAPEX plug-in: youtu.be/d1jMp9IWFlo
Reactive Markdown previews in #orclAPEX
YouTube video by United Codes
youtu.be
November 20, 2025 at 11:11 AM
How to display markdown (including tables and more) with our free @united-codes.com #orclAPEX plug-in: youtu.be/d1jMp9IWFlo
Gemini 3 Pro is astonishing.
November 19, 2025 at 11:01 AM
Gemini 3 Pro is astonishing.
Blog is back up. A hard drive failed on the server 💀. Got a new one from Hetzner (thanks) and now RAID is rebuilding. This was not fun and I've been to depths of Linux I don't want to go again (initramfs).
Toon is a data representation format that is optimized for usage for LLMs. With UC AI's PL/SQL package, you can convert any JSON data to the Toon format.
hartenfeller.dev/blog/oracle-...
#oracle #toon #AI #orclAPEX
hartenfeller.dev/blog/oracle-...
#oracle #toon #AI #orclAPEX
Toon for Oracle: A Token-Efficient Data Format for LLMs
Toon is a data representation format that is optimized for usage for LLMs. With UC AI's PL/SQL package, you can convert any JSON data to the Toon format.
hartenfeller.dev
November 18, 2025 at 2:53 PM
Blog is back up. A hard drive failed on the server 💀. Got a new one from Hetzner (thanks) and now RAID is rebuilding. This was not fun and I've been to depths of Linux I don't want to go again (initramfs).
Toon is a data representation format that is optimized for usage for LLMs. With UC AI's PL/SQL package, you can convert any JSON data to the Toon format.
hartenfeller.dev/blog/oracle-...
#oracle #toon #AI #orclAPEX
hartenfeller.dev/blog/oracle-...
#oracle #toon #AI #orclAPEX
Toon for Oracle: A Token-Efficient Data Format for LLMs
Toon is a data representation format that is optimized for usage for LLMs. With UC AI's PL/SQL package, you can convert any JSON data to the Toon format.
hartenfeller.dev
November 18, 2025 at 12:21 PM
Toon is a data representation format that is optimized for usage for LLMs. With UC AI's PL/SQL package, you can convert any JSON data to the Toon format.
hartenfeller.dev/blog/oracle-...
#oracle #toon #AI #orclAPEX
hartenfeller.dev/blog/oracle-...
#oracle #toon #AI #orclAPEX
Working on Toon support in UC AI. Its a more dense (less tokens) format for displaying data. E.g.:
[2]{id,active}:
1,true
2,false
[2]{id,active}:
1,true
2,false
November 14, 2025 at 11:24 AM
Working on Toon support in UC AI. Its a more dense (less tokens) format for displaying data. E.g.:
[2]{id,active}:
1,true
2,false
[2]{id,active}:
1,true
2,false
Reposted by Philipp Hartenfeller
Our lovely speaker group gathered for a nice group picture.
Thank you all for helping us create a great event.
#dcd25 #octemea25 #speakers #thankyou
Thank you all for helping us create a great event.
#dcd25 #octemea25 #speakers #thankyou
November 13, 2025 at 2:15 PM
Our lovely speaker group gathered for a nice group picture.
Thank you all for helping us create a great event.
#dcd25 #octemea25 #speakers #thankyou
Thank you all for helping us create a great event.
#dcd25 #octemea25 #speakers #thankyou
New video showcasing how to do agentic AI from Oracle PL/SQL with UI. (If you attended the UC AI webinar, you have already seen the demos.)
youtu.be/fxDYi0rLSJU
youtu.be/fxDYi0rLSJU
Agentic AI with pure PL/SQL | UC AI
YouTube video by United Codes
youtu.be
November 12, 2025 at 12:44 PM
New video showcasing how to do agentic AI from Oracle PL/SQL with UI. (If you attended the UC AI webinar, you have already seen the demos.)
youtu.be/fxDYi0rLSJU
youtu.be/fxDYi0rLSJU
Join tomorrow for some #orclAPEX UX tips
Join me next week where I will talk about #orclAPEX UX: apex.oracle.com/go/ace-masters
Also big thanks to the attendees of #HROUG, this UX session was voted best lecture of the conference :).
Also big thanks to the attendees of #HROUG, this UX session was voted best lecture of the conference :).
November 10, 2025 at 4:22 PM
Join tomorrow for some #orclAPEX UX tips
It is such a shame that Frank Ocean does not make music anymore.
Of course he does not owe it to anybody, but gifted talent on that level not being used is a bummer.
Of course he does not owe it to anybody, but gifted talent on that level not being used is a bummer.
November 7, 2025 at 11:28 AM
It is such a shame that Frank Ocean does not make music anymore.
Of course he does not owe it to anybody, but gifted talent on that level not being used is a bummer.
Of course he does not owe it to anybody, but gifted talent on that level not being used is a bummer.
It's definitely a bubble. Claude Haiku 4.5 just calculated a simple subtraction wrong: 17-4-2...
November 5, 2025 at 4:08 PM
It's definitely a bubble. Claude Haiku 4.5 just calculated a simple subtraction wrong: 17-4-2...
Join me next week where I will talk about #orclAPEX UX: apex.oracle.com/go/ace-masters
Also big thanks to the attendees of #HROUG, this UX session was voted best lecture of the conference :).
Also big thanks to the attendees of #HROUG, this UX session was voted best lecture of the conference :).
November 4, 2025 at 2:54 PM
Join me next week where I will talk about #orclAPEX UX: apex.oracle.com/go/ace-masters
Also big thanks to the attendees of #HROUG, this UX session was voted best lecture of the conference :).
Also big thanks to the attendees of #HROUG, this UX session was voted best lecture of the conference :).
Finally got to see One Battle After Another yesterday. Outstanding movie - great acting, cinematography, and hilarious. Completely got sucked in by the story and characters.
October 31, 2025 at 1:34 PM
Finally got to see One Battle After Another yesterday. Outstanding movie - great acting, cinematography, and hilarious. Completely got sucked in by the story and characters.
Nice, the new @github.com dashboard shows me a PR from a repo I have never seen before:
October 29, 2025 at 10:48 AM
Nice, the new @github.com dashboard shows me a PR from a repo I have never seen before:
My #SQLcl stopped working:
/opt/homebrew/Caskroom/sqlcl/25.3.0.274.1210/sqlcl/bin/sql: line 853: /usr/libexec/java_home -v 17/bin/java: No such file or directory
Upgraded from Java 17 to 21 now it works again 👍. Weird error don't know if just my Java installation broke.
/opt/homebrew/Caskroom/sqlcl/25.3.0.274.1210/sqlcl/bin/sql: line 853: /usr/libexec/java_home -v 17/bin/java: No such file or directory
Upgraded from Java 17 to 21 now it works again 👍. Weird error don't know if just my Java installation broke.
October 29, 2025 at 10:44 AM
My #SQLcl stopped working:
/opt/homebrew/Caskroom/sqlcl/25.3.0.274.1210/sqlcl/bin/sql: line 853: /usr/libexec/java_home -v 17/bin/java: No such file or directory
Upgraded from Java 17 to 21 now it works again 👍. Weird error don't know if just my Java installation broke.
/opt/homebrew/Caskroom/sqlcl/25.3.0.274.1210/sqlcl/bin/sql: line 853: /usr/libexec/java_home -v 17/bin/java: No such file or directory
Upgraded from Java 17 to 21 now it works again 👍. Weird error don't know if just my Java installation broke.
I am playing around with #ActivityWatch (FOSS) to track my computer usage and automatically categorize it by project. VS Code and browser plug-ins plus regex rules help with this. Quite powerful.
October 28, 2025 at 2:04 PM
I am playing around with #ActivityWatch (FOSS) to track my computer usage and automatically categorize it by project. VS Code and browser plug-ins plus regex rules help with this. Quite powerful.
Reposted by Philipp Hartenfeller
Call for Papers for APEX connect 2026 18-20 May in Heidepark has started! This is your chance to share your experience about what you have been building using Oracle APEX, SQL and/or PL/SQL!
CfP ends on 2-DEC EOD.
apex.doag.org/en/home/
#orclapex
CfP ends on 2-DEC EOD.
apex.doag.org/en/home/
#orclapex
October 27, 2025 at 12:39 PM
Call for Papers for APEX connect 2026 18-20 May in Heidepark has started! This is your chance to share your experience about what you have been building using Oracle APEX, SQL and/or PL/SQL!
CfP ends on 2-DEC EOD.
apex.doag.org/en/home/
#orclapex
CfP ends on 2-DEC EOD.
apex.doag.org/en/home/
#orclapex
The last days were splendid. First time attending the great #HROUG conference. It takes place on an island before Rovinj, Croatia. Great conference, but especially fun. Played tennis, went running and swimming, and enjoyed the parties.
October 23, 2025 at 8:44 AM
The last days were splendid. First time attending the great #HROUG conference. It takes place on an island before Rovinj, Croatia. Great conference, but especially fun. Played tennis, went running and swimming, and enjoyed the parties.
Reposted by Philipp Hartenfeller
Had it scheduled to be published but forgot to make noise about it 🤦♂️
#JoelKallmanDay
nuijten.blogspot.com/2025/10/add-...
#JoelKallmanDay
nuijten.blogspot.com/2025/10/add-...
Add a Little Joy to your Buttons #JoelKallmanDay
Recently we were sitting outside at a café having a coffee and a slice of apple pie, something we do often. This is nothing remarkable, b...
nuijten.blogspot.com
October 16, 2025 at 1:06 PM
Had it scheduled to be published but forgot to make noise about it 🤦♂️
#JoelKallmanDay
nuijten.blogspot.com/2025/10/add-...
#JoelKallmanDay
nuijten.blogspot.com/2025/10/add-...
. @alexnuijten.bsky.social seems to be lost. You are in 🇭🇷 at the great #HROUG25 conference!
Jokes aside great session about apple pies and spatial data.
Jokes aside great session about apple pies and spatial data.
October 16, 2025 at 9:15 AM
. @alexnuijten.bsky.social seems to be lost. You are in 🇭🇷 at the great #HROUG25 conference!
Jokes aside great session about apple pies and spatial data.
Jokes aside great session about apple pies and spatial data.
Reposted by Philipp Hartenfeller
For #JoelKallmanDay I am sharing a free plug-in for reactive Markdown preview. It auto refreshes, supports tables, alerts, etc., and comes with three themes. #orclAPEX
hartenfeller.dev/blog/apex-re...
hartenfeller.dev/blog/apex-re...
Oracle APEX Reactive Markdown Plug-in #JoelKallmanDay
Display rich Markdown in Oracle APEX that reacts to changes of referenced page items.
hartenfeller.dev
October 15, 2025 at 5:03 AM
For #JoelKallmanDay I am sharing a free plug-in for reactive Markdown preview. It auto refreshes, supports tables, alerts, etc., and comes with three themes. #orclAPEX
hartenfeller.dev/blog/apex-re...
hartenfeller.dev/blog/apex-re...
For #JoelKallmanDay I am sharing a free plug-in for reactive Markdown preview. It auto refreshes, supports tables, alerts, etc., and comes with three themes. #orclAPEX
hartenfeller.dev/blog/apex-re...
hartenfeller.dev/blog/apex-re...
Oracle APEX Reactive Markdown Plug-in #JoelKallmanDay
Display rich Markdown in Oracle APEX that reacts to changes of referenced page items.
hartenfeller.dev
October 15, 2025 at 5:03 AM
For #JoelKallmanDay I am sharing a free plug-in for reactive Markdown preview. It auto refreshes, supports tables, alerts, etc., and comes with three themes. #orclAPEX
hartenfeller.dev/blog/apex-re...
hartenfeller.dev/blog/apex-re...
New blogging achievement: somebody posted me on Hacker News 🤯
October 14, 2025 at 12:17 PM
New blogging achievement: somebody posted me on Hacker News 🤯