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Robert Marz

@robbie.databee.org

Software Architect with a database-centric view of the the world. Oracle ACE Pro. Sym42 Member. ora2Know. Living in Frankfurt, Germany.

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10.10.2023
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Latest posts by Robert Marz @robbie.databee.org

Die Dev Talks sind immer spannend und unterhaltsam.
Am Donnerstag diskutieren @oliverlemm.bsky.social und ich Best Practices und berichten aus unseren aktuellen Projekten und Erfahrungen.

Ich freue mich schon sehr - wer ist noch dabei?

17.02.2026 11:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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πŸ€–βœ¨ Get ready for Ora2know Noon2noon – AI for the DBA!
Join Oracle ACEs Johannes Michler, @martinklierdba.bsky.social, and @robbie.databee.org for hands-on sessions exploring how AI, vector search, & natural language queries are transforming the Oracle Database worldπŸš€

www.ora2know.de/event/noon2n...

10.02.2026 08:12 πŸ‘ 9 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Software quality – Grok and my friend’s boat You might be wondering how a friend’s boat has any relation to the topic of software quality, but bear with me – we’ll get there in a second. But first, if you’ve got a Twit…

"It doesn't matter if AI spoke to an Agent which spoke to your Uncle Mike whose used his iPad to inscribe COBOL onto a parchment that was attached to a carrier pigeon...It is still your code"

connor-mcdonald.com/2026/01/04/s...

04.01.2026 02:33 πŸ‘ 6 πŸ” 5 πŸ’¬ 2 πŸ“Œ 1

365 new days ahead.
Let's make the best out of it

01.01.2026 00:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘ 0.00%

01.01.2026 00:00 πŸ‘ 1362 πŸ” 613 πŸ’¬ 20 πŸ“Œ 88

365 new days.
365 fresh chances.

01.01.2026 00:16 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Can I build an Agent & still use SQLcl’s MCP Server? Yes! Previously on @thatjeffsmith... Can I build an Agent & still use SQLcl’s MCP Server? Yes!

Previously on @thatjeffsmith... Can I build an Agent & still use SQLcl’s MCP Server? Yes!

18.12.2025 05:41 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Quick tip. When refreshing a materialized view and you get ORA-1031: Insufficient privileges, before you race off granting anything, first thing to do is check you didn't just simply misspell the mview name

18.12.2025 03:59 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Probably old news but a TIL for me. You can pipe your windows CLI output to "clip" to add it to the clipboard

14.12.2025 23:28 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Getting Close to the end of the year.
Time to get Xmas presents...

27.11.2025 15:43 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
SQL assertions syntax

SQL assertions syntax

Multi row/multi constraint example β€œcontrollers must work in finance”

Multi row/multi constraint example β€œcontrollers must work in finance”

Multi row/multi table constraints
β€œCan’t earn more than your manager”
β€œCan’t have multiple presidents”
β€œMust be a president”

Multi row/multi table constraints β€œCan’t earn more than your manager” β€œCan’t have multiple presidents” β€œMust be a president”

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

19.11.2025 08:23 πŸ‘ 25 πŸ” 11 πŸ’¬ 1 πŸ“Œ 1
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23ai β€˜trivia’: Domains, Annotations, & Duality Views Previously on @thatjeffsmith... 23ai β€˜trivia’: Domains, Annotations, & Duality Views

Previously on @thatjeffsmith... 23ai β€˜trivia’: Domains, Annotations, & Duality Views

21.11.2025 21:37 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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🎀 Don’t miss DOAG Konferenz + Ausstellung 2025 β€” 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. πŸ‘‰ anwenderkonferenz.doag.org/de/home/

14.11.2025 09:43 πŸ‘ 21 πŸ” 13 πŸ’¬ 0 πŸ“Œ 0
SQL Macros
Can factor out common SQL expressions and statements into reusable, parameterized constructs
Scalar expressions, used in SELECT, WHERE, GROUP BY and HAVING clauses
Table expressions, used in FROM clauses  to encapsulate calculations and business logic
Scalar macro example

SQL Macros Can factor out common SQL expressions and statements into reusable, parameterized constructs Scalar expressions, used in SELECT, WHERE, GROUP BY and HAVING clauses Table expressions, used in FROM clauses to encapsulate calculations and business logic Scalar macro example

SQL Macros
Can factor out common SQL expressions and statements into reusable, parameterized constructs
Scalar expressions, used in SELECT, WHERE, GROUP BY and HAVING clauses
Table expressions, used in FROM clauses  to encapsulate calculations and business logic
Table macro example

SQL Macros Can factor out common SQL expressions and statements into reusable, parameterized constructs Scalar expressions, used in SELECT, WHERE, GROUP BY and HAVING clauses Table expressions, used in FROM clauses to encapsulate calculations and business logic Table macro example

Macros in Oracle #SQL enable you to define expression templates as text

At parse time the database merges these with the parent query, replacing parameters with the actual values passed

Macros come in two types

Scalar - use in SELECT, WHERE, ORDER BY, etc.
Table - use in FROM

10.11.2025 12:02 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Robert fuchtelt mit dem Pointer herum

Robert fuchtelt mit dem Pointer herum

Wie man den Logitech Spotlight *eigentlich* benutzt.

22.10.2025 13:15 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Robert + Titelfolie

Robert + Titelfolie

Der β€žfreundliche Onkelβ€œ @robbie.databee.org erzΓ€hlt uns jetzt etwas ΓΌber JSON Duality Views in der #Oracle #Database #23ai #26ai #ora2know

22.10.2025 12:37 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Exciting to see Oracle ACEs featured as speakers at SOUG Day Zurich 2025 on October 23! πŸ‡¨πŸ‡­βœ¨ Get ready for a day full of expert insights and networking with the Swiss Oracle community.

Discover more:
πŸ”— soug.ch/event/soug-day-zurich-2025/

@helifromfinland.bsky.social @danischnider.bsky.social

22.10.2025 06:28 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Who doesn't want to be part of the 16th edition of APEX World?
Showcase your expertise in APEX to the community! We are seeking presentations for all skill levels, from novices to seasoned professionals, and everything in between.

πŸ‘‰ Visit buff.ly/dJc3ogC to submit your abstract!

Open until Dec 1

22.10.2025 07:17 πŸ‘ 6 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

It's always an honor to talk in front of people who should know better. :)

Thank you everybody who did not enjoy the warm sun, but my talk.

@oracleace.bsky.social @ora2know.de @sym42.bsky.social

16.10.2025 16:00 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Martin

Martin

Publikum

Publikum

Maria

Maria

#ora2know heute in Frankfurt!

Launige EinfΓΌhrung von @martinklierdba.bsky.social und schon geht’s los mit dem β€žOracle AI World 2025 Follow Upβ€œ mit @sqlmaria.com!

22.10.2025 07:51 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Join us for the Database Cloud and Developer Day on November 13th at Oracle HQ in Utrecht.
A few seats are still up for grabs for DC&D! Secure yours now before they're all taken.

Visit nloug.nl/en/events/au... for more information.

#Database @Oracle #Developer #Cloud #DCD26

22.10.2025 07:27 πŸ‘ 5 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Maria Colgan
zu Gast bei ora2know
@ora2know.de @sqlmaria.com @oracleace.bsky.social

Sie erzΓ€hlt von AI Revolution von letzter Woche in Vegas.

22.10.2025 08:13 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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EindΓΌcke von der #OracleAIworld in #Frankfurt - @sqlmaria.com first on stage mit Geschichten von der VersionsΓ€nderung #23ai auf #26ai. Sind wir #verwirrt? :)
@oracleace.bsky.social @sym42.bsky.social

22.10.2025 07:55 πŸ‘ 9 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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SQL Developer extension for VS Code 25.3: Charts & Diagrams Previously on @thatjeffsmith... SQL Developer extension for VS Code 25.3: Charts & Diagrams

Previously on @thatjeffsmith... SQL Developer extension for VS Code 25.3: Charts & Diagrams

21.10.2025 20:39 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Getting closer to 80%...

19.10.2025 18:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Es gibt noch ein paar freie PlΓ€tze.
Das wird super informativ und spannend.

Sehen wir uns in Frankfurt und lernen gemeinsam ΓΌber die neuesten Dinge aus der Oracle Welt?

13.10.2025 23:52 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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No need to use WinGet to install Nano to edit files from the terminal - Just use:

edit filename

in Windows Terminal

10.10.2025 21:16 πŸ‘ 5 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0

Angry ticket from developers, why did "CREATE INDEX IF EXISTS" work in test envs, but not in prod. Chill, I'm just about to patch prod to 19.28. Normally would be excited, that devs actually read database new features guide, but lets be honest, it's LLM generated statement.

02.10.2025 05:04 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Blog post for September 2025

SQL Developer isn't entirely CBO-friendly.
jonathanlewis.wordpress.com/2025/09/24/s...

24.09.2025 12:17 πŸ‘ 21 πŸ” 8 πŸ’¬ 4 πŸ“Œ 0
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GitHub - ilmarkerm/go_tls_probe: Module for GO that does TLS handshake and returns information about the endpoint with support for some STARTTLS services Module for GO that does TLS handshake and returns information about the endpoint with support for some STARTTLS services - ilmarkerm/go_tls_probe

A small Go module for TLS endpoint monitoring/testing. In addition to what it provides over standard Go functionality, is the ability to talk some STARTTLS protocols - in this release MySQL and PostgreSQL. Was pretty fun to discover the MySQL/PostgreSQL handshake protocols github.com/ilmarkerm/go...

27.09.2025 08:22 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0