Query language

A query language is a type of computer language used to request and manage information from databases or data systems. It allows users to ask questions and retrieve specific data in a structured way. For example, when you search for a book in an online library, the system uses query language to find and display the results based on your request. Common query languages include SQL (Structured Query Language) for relational databases. Essentially, it helps users communicate effectively with data systems to get the information they need.