Elance Exams Answers PDF file

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Download PDF file of elance Zoho Creator Exam Answers
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A data warehouse is built as a separate repository of data, different from the operational data of an enterprise because?

It is necessary to keep the operational data free of any warehouse operations
It contains data derived from multiple sources
A data warehouse cannot afford to allow corrupted data within it
A data warehouse contains summarized data whereas the operational database contains transactional data
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