A Query Language is a specialized language used to request information from databases. It allows users to communicate with the database by writing specific commands to retrieve, update, or manipulate data. One of the most popular query languages is SQL (Structured Query Language), which is widely used for managing relational databases. Using a query language, users can easily filter and sort data, making it simpler to find the information they need. For example, a user might write a query to find all customers from a specific city in a database of customers. This makes data management more efficient and user-friendly.