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Question
To provide better performance, some OLAP systems merge data warehouse and data mart approaches by storing small extracts of the data warehouse at end-user workstations.a. True
b. False
Answer
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Related questions
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a. True
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a. True
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Normalization is a process that is used for changing attributes to entities.
a. True
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Overlapping subtypes are subtypes that contain_______--- subsets of the supertype entity set.a. nullb. exclusivec. solitaryd. nonunique
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a. Subtype sets are unique.
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The hierarchical model is software-independent.a. Trueb. False