What is queries meaning?

Queries are used to retrieve or manipulate data from a database. A query in a database is a request for specific information or data from a table or a combination of tables. In essence, it is a question asked of a database. Queries can be straightforward, such as asking for a list of customers' names and email addresses, or more complex, such as retrieving data based on a range of criteria, multiple tables or joining with another query. Query language is used to write queries to access the data in a database. Some popular query languages include SQL, NoSQL, and MongoDB. The results of a query can be displayed in a report, printed, or simply viewed on-screen. A well-designed query returns accurate and relevant data while minimizing processing time and resources.