RKRahul kanyalinrahulkanyal.hashnode.dev·Mar 29 · 8 min readSQl Imp. Topics📘 SQL Interview Guide — Basic to Intermediate 💡 🔹 1. What is SQL? SQL (Structured Query Language) is a programming language used for interacting with Relational Database Management Systems (RDBMS)00
RKRahul kanyalinrahulkanyal.hashnode.dev·Mar 29 · 26 min readOPerating system imp. topics⚡ Purpose of Operating System (with Example) Purpose: To act as a bridge between hardware and user/programs, managing resources efficiently. Example: Without OS → To type a letter, you’d need to wr00
RKRahul kanyalinrahulkanyal.hashnode.dev·Feb 28 · 11 min readDBMS full Revision Imp. Topics1. What is DBMS? A Database Management System (DBMS) is software that manages data in a structured way, allowing users to store, retrieve, manipulate, and secure data efficiently. Advantages: Data Re00
