Getting Started with Oracle SQL: A Beginner-Friendly Introduction
Welcome to my blog! In this post, we’ll explore the basics of Oracle SQL in a simple and clear way — perfect for beginners. --- What is SQL? SQL (Structured Query Language) is used to interact with databases. Oracle SQL is Oracle's version of this powerful language, used to: - Create tables - Insert, update, delete data - Fetch data with queries ------------------------------------------------------------------------------------------------------------------------------ Basic SQL Commands: 1. SELECT – to read data SELECT * FROM employees; 2. WHERE – Filter records SELECT * FROM employees WHERE department = 'HR'; 3. INSERT – Add new data INSERT INTO employees (id, name, department) VALUES (101, 'Hari', 'Finance'); 4. UPDATE – Modify existing data UPDATE employees SET department = 'IT' WHERE name = 'Hari'; 5. DELETE – Remove data DELETE FROM employees WHERE id = 101; 6. CREATE TABLE – Create a new table CREATE TABLE employees ( id NU...