In database management, what is a 'query'?

• A. A function used for sorting data
• B. A request for specific data from a database
• C. An extension file type for databases
• D. A process of deleting data from a database

Answer: (B)

A 'query' in database management refers to a request for specific data from a database. It allows users to retrieve data that meets certain criteria, making it essential for data manipulation and retrieval. Queries can be simple, fetching a limited number of records, or complex, allowing the combination of data from multiple tables, filtering results, and performing calculations.

This functionality empowers users to extract meaningful information from large datasets efficiently, which is crucial for analysis, reporting, or integrating data into applications. Understanding how to formulate and execute queries is fundamental when interacting with databases, as it allows for tailored information retrieval according to user needs.