SQL, or Structured Query Language, is a standard programming language designed for managing and manipulating databases. It allows users to create, read, update, and delete data within a database.
For example, if you have a database of customers, you can use SQL to find all customers from a specific city or to add a new customer to the database. SQL commands are often used in web applications to retrieve and store data efficiently.
Common SQL commands include SELECT for retrieving data, INSERT for adding data, and UPDATE for modifying existing data. Understanding SQL is essential for anyone working with data-driven applications.
Example
SELECT * FROM customers WHERE city = 'New York';
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