This blog page is a technical resource primarily focused on Oracle technologies, specifically Oracle APEX and PL/SQL. It features a collection of articles and tutorials written by Vinish Kapoor, an expert in Oracle technologies. The content covers a wide range of topics including development techniques, problem-solving guides, and best practices for Oracle APEX and PL/SQL.
You polish your resume, click "Submit," and then… silence. No rejection, no interview, nothing. Before you blame your experience, understand the software sitting between you and the recruiter: the Applicant Tracking System (ATS). More than 97% of Fortune 500 companies and…
You're about to apply for a job, and the posting asks for a "CV" but everything you've ever written is a resume. Or you're applying abroad, and suddenly the rules feel different. The resume vs CV confusion trips up job seekers constantly,…
You can be a brilliant engineer and still get rejected before a human ever reads your application. The reason is almost never your code — it's your resume. A great software engineer resume does one job: it convinces a recruiter and an…
You give a large language model a clear instruction at the start of a long document — "Respond only in JSON" or "Never reveal the customer's account number" — and 20,000 tokens later, it quietly ignores you. The rules you…
A single prompt injection is dangerous. A prompt injection chain is worse — it's what happens when one malicious instruction doesn't just hijack a single AI response, but cascades from one component to the next, compromising an entire pipeline of agents, tools,…
Modern AI assistants feel trustworthy because they cite "their knowledge base." But what if an attacker could secretly slip false information into that knowledge base — so the AI confidently serves up lies, leaks data, or pushes malicious instructions to every user…
You wrote the perfect prompt months ago. It produced clean, reliable output every time — so you saved it, wired it into your app, and moved on. Then one day the results start drifting: formatting breaks, the tone shifts, instructions…
Have you ever checked your phone bill and wondered where all your data went? You barely streamed anything, yet your plan is nearly maxed out. There is a good chance you are dealing with data bleed. Data bleed is one…
Spy apps are designed to be invisible. They hide their icons, disguise themselves as "System Update" or "Device Health," and quietly copy your messages, location, photos, and calls to someone else — often a person you know. This kind of…
Type a short code into your dialer, press call, and instantly find out if someone is spying on your phone — that's the promise behind codes like *#21# and *#62# that circulate endlessly on social media. The truth is more nuanced. These dialer codes…
Your phone suddenly feels sluggish. Your battery drains by lunchtime. A friend asks why you sent them a strange link at 3 a.m. — except you didn't. These moments make everyone ask the same question: Has my device been hacked? The…
You might have heard developers whisper about a mysterious issue in their applications. They are usually talking about a ghost thread in coding. This hidden problem can silently ruin your application performance and frustrate your users. When you build software,…
You have probably come across the term Phantom Loop while searching for help with a stubborn programming bug. It sounds like a legitimate computer science concept, something you might study in a college course or find referenced in official documentation.…
If your codebase feels like it was written by engineers who never talked to the business team, you already know the problem domain-driven design (DDD) was built to solve. The gap between what the software does and what the business…
Creating clear test scenarios is a crucial part of modern software development. You want your entire team to understand exactly how a feature should behave. The Given-When-Then formula offers a highly effective way to achieve this clarity. It effortlessly bridges…
When a database engine is running, a lot more is happening in RAM than most people realize. Pages of data, index structures, transaction logs, sort buffers, and query execution plans all live in memory at the same time. A memory…
Most databases store what is happening right now. But what if you need to know what was true yesterday, or what your system believed to be true last month, even if that belief turned out to be wrong? A bitemporal…
You have likely heard the term unicorn used in the business world to describe a wildly successful startup. Traditionally, this meant a massive company with hundreds of employees that reached a billion-dollar valuation. Today, a radical new business model is…
