From the data analyst's point of view,decision support data differ from operational data in three main areas: time span,granularity,and ____.
A) usability
B) dimensionality
C) transaction processing
D) sparsity
Correct Answer:
Verified
Q26: _ can serve as a test vehicle
Q46: _ splits a table into subsets of
Q50: A characteristic of operational data is _.
A)
Q52: _ systems provided no data extraction/integration process.
A)
Q53: Computed or derived facts are sometimes called
Q54: Data _ implies that all business entities,data
Q56: In a star schema,attributes are often used
Q57: The _ dimension of a data cube
Q58: In 2008,Wal-Mart,the world's largest company,had over four
Q60: Had _ been as pivotal to business
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