SQL, or Structured Query Language, is the standard language used to manage and manipulate relational databases. It helps users perform tasks like data retrieval, insertion, updating, and deletion using simple queries. Ideal for beginners and professionals, SQL is essential for data analysis, database management, and backend development. Whether you’re building apps, analyzing big data, or working with cloud databases, learning SQL is a must for anyone in tech. This simple guide covers the basics of SQL, popular query types, and how databases work in real-world applications.