A query language, also known as data query language or database query language (DQL), is a computer language used to make queries in databases and information systems.

Nov 12, 2025 · DDL (Data Definition Language) consists of SQL commands that can be used for defining, altering and deleting database structures such as tables, indexes and schemas.

What is SQL? SQL stands for Structured Query Language SQL lets you access and manipulate databases SQL became a standard of the American National Standards Institute (ANSI) in …

Mar 13, 2024 · A query language is a computer programming language used to retrieve and manipulate data from databases. It allows users to communicate with the database …

The interface by which such manipulations are specified is called the query language. Whereas early query languages were originally so complex that interacting with electronic databases …

Aug 9, 2025 · Learning just one language is no longer enough. The ten query languages listed above are important in different situations. Knowing them helps developers work better with …

A query language is a formal language for requesting and transforming data across various data sources, including tables, documents, graphs, arrays, and time series.

Jul 25, 2024 · Top 10 Query Languages Every Developer Should Know In the ever-evolving world of database management, query languages play a critical role in how data is retrieved, …

Aug 23, 2024 · A Query Language (QL) serves as a type of computer programming language designed to retrieve and manage data from databases and information systems. It operates …

Structured Query Language (SQL) (pronounced / ˌɛsˌkjuˈɛl / S-Q-L; or alternatively as / ˈsiːkwəl / ⓘ "sequel") [4][5] is a domain-specific language used to manage data, especially in a …