Feb 18 · 4 min read · 1️⃣ What is SQL? (Foundation Strong Karo) SQL = Structured Query Language Used for: Storing data Retrieving data Managing data Controlling access Handling transactions SQL works with Relational Databases 2️⃣ How Relational Database Actually L...
Join discussionFeb 18 · 4 min read · Introduction A Database Management System (DBMS) is a crucial topic in computer science and software development interviews.Whether you're preparing for campus placements, backend roles, or software engineering interviews, understanding DBMS concepts...
Join discussionFeb 16 · 6 min read · This article documents a real-world PostgreSQL production incident.All business names, schemas, queries, IPs, and identifiers have been anonymized for confidentiality. 📌 System Overview OS: Ubuntu Server 24.04 LTS Database: PostgreSQL 16.x CPU:...
Join discussionFeb 6 · 4 min read · Hello Friends! 👋 Welcome back! After understanding the basic architecture in Unit 1, today we dived into the Logic behind databases. Unit 2 is all about "How to talk to the Database" (Relational Algebra & SQL) and "How to keep the Database clean" (N...
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Feb 4 · 3 min read · In system design, SPOF means: When one part of the system fails and the whole system stops working. In short: One problem → Entire app is down Good companies always try to remove SPOF so users don’t face downtime. 💻 Example: One Developer Doing Al...
Join discussionJan 30 · 4 min read · Hello Friends! 👋 Today, I sat down to tackle one of the most important subjects in Computer Science: Database Management Systems (DBMS). We live in a world of data (Instagram, Bank, Zomato), but have you ever wondered how they manage terabytes of in...
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Jan 26 · 14 min read · What is the Database? Database is nothing but the collection of the organised data which can be the actually easy to accessed,retrieved and update.Consider it as the digital filing system where information are kept in organized way . What is the Data...
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Jan 24 · 4 min read · If you’ve ever wondered how massive companies like Amazon or Netflix keep track of millions of customers and orders without losing their minds, the answer is the Relational Data Model. It sounds technical, but it’s actually a very logical way of orga...
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