With respect to data warehouses, databases, and files, which one of the following statements is not true?
A data warehouse is one or more very large databases containing both detailed and summarized data for a number of years.
Data mining is using queries to investigate hypothesized relationships among data.
Data warehouses complement transaction processing databases by providing support for strategic decision making.
A database system consists of the database, the DBMS, and the application programs that access the database through the DBMS.