Bill Inmon, known as the "Father of Data Warehousing" described a data warehouse as a collection of data that is:

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Bill Inmon's definition of a data warehouse includes all of the choices. The data in a data warehouse is subject-oriented, meaning it is organized around a specific subject or theme, such as sales, customers, or products. The data is also integrated and time-variant, meaning it is consistent and accurate across different sources and can be analyzed over time. Finally, data in a data warehouse is non-volatile, meaning it is not updated or deleted once it has been added, allowing for historical analysis of trends and patterns.

Bill Inmon, Known as the "Father of Data Warehousing" Described