Structured Query Language (SQL) is a standard programming language used to manage and manipulate relational databases. SQL is designed to query, update, and organize data in database management systems. It allows users to perform tasks such as retrieving specific records, inserting new data, updating existing information, and deleting records. SQL is widely used in various industries to handle large amounts of structured data, from simple applications to complex enterprise systems. Common SQL commands include SELECT, INSERT, UPDATE, and DELETE. The language's ease of use and versatility make it essential for database administrators and developers alike.