This category is meant to be used for blogging about Oracle technologies
In the first version of our semantic search implementation in Oracle APEX, everything hinged on manually written descriptions. Someone — maybe you, maybe a user — had to describe each image in words. Then we’d send that text to OpenAI to generate embeddings, store those vectors, and use them to build a smarter kind of [...]
In the first part of this series, we looked at how to enrich your data with meaning by generating embeddings using OpenAI’s API. We stored those vectors in our Oracle APEX app, laying the groundwork for a smarter kind of search — one that understands concepts, not just words. Now it’s time to go a [...]
Vector Search is a way to find things that are similar—not by matching exact words like a typical SQL LIKE '%cat%' search—but by comparing meaning. The basic idea is this: You take your data (text, images, whatever) and turn it into numbers—a list of numbers, actually—called a vector. Each vector lives in a multi-dimensional space, [...]
Working with blockchain data in traditional enterprise environments can feel a bit like trying to mix oil and water. Between smart contracts, RPC nodes, ABI files, and all the other moving parts, it’s easy to get lost—especially when your main focus is building applications with Oracle APEX. In our previous article, we tackled this challenge [...]
Oracle Blockchain Platform is a preassembled PaaS solution that enables businesses to quickly deploy and manage blockchain networks. It includes all necessary components such as compute, storage, containers, identity services, and event management, along with an intuitive console for easy administration. Built on Hyperledger Fabric, Oracle enhances this open-source framework with automated provisioning, multi-cloud and [...]
Building on our previous discussion about integrating OpenAI Assistants with Oracle APEX, this article focuses on structuring and displaying user interactions efficiently. Instead of frequent database queries, APEX collections provide session-based storage for optimized performance. The PR_LOAD_MESSAGES procedure initializes the conversation by retrieving system messages, structuring collections, and handling errors. Messages are displayed dynamically using [...]
Previously, we explored the OpenAI API's completion models, which enabled text generation and language-based automation. Now, we are shifting our focus to OpenAI's new Assistant API, a more structured approach that enhances interactions by integrating memory, function calling, and multi-step reasoning. This new paradigm allows for more sophisticated and context-aware AI-driven assistants that can work [...]
Introduction In Oracle APEX, there are situations where we need to manage temporary data before deciding whether to store it permanently. APEX Collections provides an efficient way to handle this by offering an in-memory storage mechanism that remains active throughout a user's session. Rather than immediately writing data to a database table, collections allow us [...]
SQL injection remains one of the most exploited vulnerabilities in web applications, and Oracle APEX is no exception. Despite APEX’s built-in protections, poor use of dynamic PL/SQL and configuration mistakes can expose your application to attacks. In this article, we explore advanced techniques to prevent SQL injection attacks in APEX, going beyond basic measures like [...]
Now we need to move on to the JavaScript portion, which forms the core of our proposal: replacing the item's default validation with a fully customized solution tailored to our specific requirements. This step is crucial, as it allows us to override Oracle APEX’s standard validation behavior and implement logic that aligns with the unique [...]
