Extracting data for a data warehouse
A)cannot be done from flat files
B)should only involve active files
C)requires that the files be out of service
D)all of the above

Name: Extracting data for a data warehouse A)cannot be done from flat files B)should only involve active files C)requires that the files be out of service D)all of the above
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Quizplus · Accepted Answer

Extracting data for a data warehouse often requires that the files be out of service to ensure data consistency and integrity during the extraction process.

Extracting Data for a Data Warehouse