To retrieve records from a relational database,or to sort them,you must use a key.
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Q10: A data warehouse is a large,typically relational,database
Q11: There are two overall approaches to maintaining
Q12: The three phases involved in building a
Q13: Usually,a table in a relational database must
Q14: In the context of data management, _refers
Q16: Multiple characters make up a record.
Q17: The messages sent to access data in
Q18: Data warehouses replace transactional databases.
Q19: The larger the data warehouse,the larger the
Q20: Much of the extraction,transforming,and loading (ETL) activity
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