Annals of Oracle's Improbable Errors

Welcome to Flavio Casetta's official Oracle database application development related blog.

Thursday, November 20, 2025

SQLDeveloper 23.1.1 fails on startup

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Getting a long trace of errors like the following on launching SQLDeveloper? ... oracle.ide.indexing -     org.netbeans.InvalidException: Ne...
Monday, November 03, 2025

APEX Error 572 autopsy

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A couple of days ago I exported an application from APEX 24.1.5 and imported it into APEX 24.2.9 on my OCI free tier instance. Whilst the ap...
Wednesday, October 29, 2025

Tip of the day: hide (or show) multiple buttons or other page components with a single dynamic action

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Need to hide or show multiple buttons or page items basing on a common client-side condition? Instead  of creating a single dynamic action f...
Wednesday, October 15, 2025

Oracle APEX, OCI, Ollama at work thanks to OllAPEX for the #JoelKallmanDay

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Today is the day dedicated to the late Joel Kallman, a mentor and friend, so I thought it would be nice to show off my APEX application host...
Sunday, September 14, 2025

APEX printer friendly mode - how to enable it ?

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If you are wondering why your APEX page is not shown in printer-friendly mode after specifying "Yes" in the relevant parameter of ...
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  • Byte64
  • Flavio Casetta
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