The buyer clicked Place order once. The application returned two purchase references: Order #21 and Order #22, each for BRL 2,098. Both were confirmed. Neither looked like a failed transaction. In The Incident Is the Prompt, an exception gave the investigation a starting point. Here, success was the symptom. Before looking for a faulty line,…
For this series, I want to explore AI beyond writing code: using those same tools to understand what happened when an application does not behave as expected. The work between a screenshot and a diagnosis involves finding the execution, connecting its records, and deciding where to inspect the code. An early assumption can send that…
Most of the time, when I build an APEX page, I try to stay inside the declarative model for as long as the page still feels honest. Native regions, template components, lists, cards, reports, buttons, dynamic actions, and Universal Theme options are usually easier to maintain because they remain visible in the Builder and other…
In the first version of this case, I deliberately kept things focused. The goal was to prove that a user could come in through Google, complete a minimal onboarding flow, receive ORDS client credentials, and actually use those credentials against a protected endpoint. That loop, once it closes, already carries a lot of value, and…
In APEX, the usual paths are familiar: workspace users, database accounts, or some internal authentication model we control ourselves. But APEX also gives us Social Sign-In, and that changes the tone of the application completely. There are several ways to do that depending on the provider, but in this case I am using Google because…
A practical from-the-field test showing how Oracle 26ai annotations can reduce NL2SQL ambiguity by giving the database the business context that object names alone never carried.
By Dênio Flávio Garcia da Silva I’ve spent a lot of time auditing APEX environments, and nothing sinalizes a maintenance nightmare quite like the “Hidden Item Explosion.” We’ve all been there: a simple form grows, logic accumulates, and suddenly you’re juggling dozens of values across multiple processes. It works, sure, but would you trust your future self…
By Denio Flavio Garcia da Silva After more than 15 years working with PL/SQL, I still managed to find a feature that genuinely surprised me. I ran into it while preparing for the PL/SQL certification exam (1z0-149), which was easily the hardest Oracle certification I have taken so far. I passed with 66.2%, just above…
By Dênio Flávio Garcia da Silva There was a moment in my journey with Oracle APEX when I started working on larger enterprise applications and realized that the page itself was often the simplest part of the whole system. The UI looked clean and straightforward, but behind a single button there were packages with hundreds…
By Dênio Flávio Garcia da Silva There are certain problems in enterprise applications that only show up after a system has been in production for a while. They don’t appear during development, they don’t fail loudly, and they don’t generate stack traces. They just quietly corrupt user expectations. One of those problems is concurrent editing….