SQL Query Interview Question: Cheat Sheet1. Find the Second Highest Salary SELECT MAX(e1.salary) FROM employee e1 WHERE e1.salary < ( SELECT MAX(e2.salary) FROM employee e2 ); 2. Find the Nth Highest Salary Option 1: Using LIMIT andSep 11, 2026·5 min read
Run Oracle19c Database in Mac M1/M2 using DockerRunning Oracle 19c on Mac (M1/M2) isn’t straightforward. Unlike Windows or Linux, Oracle doesn’t provide a native installer, which can be a huge blocker for students and developers. During my MTech 2nd semester Database Security Lab, I had to use Ora...Sep 20, 2025·3 min read
Git Command Cheatsheet SheetA concise reference for Git commands. ⚙️ Configure Git 🌍 Global (applies to all repositories) # Set global name git config --global user.name "Your Name" # Set global email git config --global user.email "your@email.com" 📂 Local (specific to a r...Sep 20, 2025·3 min read
China Cracks Small RSA Key with Quantum Computer – What It Means for Our Digital FutureImagine waking up one morning to find out the math behind the encryption protecting your bank account is slowly beginning to break. That’s exactly the kind of shift a recent breakthrough in China is hinting at — and while we’re not in immediate dange...Sep 20, 2025·3 min read
Networking and Digital Communication Fundamentals1. Introduction The basic of networking and digital communication and essential elements required to understand how computer network operates in the context of security of information system for out net-centric organisation. 1.1 Topics to be covered ...Sep 20, 2025·23 min read
Django deployment on AWSToday we are going to deploy our Django project in AWS. Our Django project’s code are stored in the GitHub repository, and we have an EC2 instance created and running with ubuntu 18.04 LTS operating system in AWS. We are going to see the steps to dep...Sep 20, 2025·7 min read
