What type of database provides an integrated view of data from multiple information systems?

A data warehouse provides an integrated view of data from multiple information systems, allowing organizations to consolidate data from various sources. This integration enables comprehensive data analysis and reporting, facilitating decision-making processes. Data warehouses are specifically designed to store large volumes of historical data and support complex queries, making them essential for generating insights that rely on data from different operational systems.

In contrast, a data dictionary serves as a catalog of data elements and their meanings within a database but does not provide integrated data views. A data repository is more general and may not focus on integration or analysis. A data mart is a subset of a data warehouse, designed for a specific business line or team, but it may not encompass the broader integration that a full data warehouse does. Thus, the correct answer highlights the primary function of a data warehouse in bringing together data for comprehensive analysis across multiple sources.