A declarative database is a type of database management system that allows users to specify what data they want to retrieve or manipulate, rather than how to retrieve it. This approach is in contrast to imperative databases, where users must specify the exact steps and commands to retrieve data. In a declarative database, users can simply declare their desired outcome, and the system will automatically generate the necessary steps to fulfill the request. This makes it easier for non-technical users to interact with the database, as they do not need to have a deep understanding of the underlying structure and language. Declarative databases are often used in business intelligence and data analytics, as they allow for more efficient and intuitive data querying and reporting.