Final answer:
A query is used to retrieve information from a database that exactly matches the criteria or example provided. It is a fundamental method of interacting with databases and is essential for filtering and obtaining specific data subsets.
Step-by-step explanation:
To retrieve information that precisely matches a provided example, you use a query. In databases, a query is a method used to request information where the information retrieved matches specific criteria or examples given. This is handled by a query language such as SQL (Structured Query Language). Queries are a fundamental part of database interactions and are essential for extracting subsets of data based on the user's request. They allow users to filter and retrieve data that match the conditions specified in the query.