Suppose that a data warehouse consists of the four dimension
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Suppose that a data warehouse consists of the four dimensions date, spectator, location, and game, and the two measures
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Suppose that a data warehouse consists of the four dimensions date, spectator, location, and game, and the two measures count and charge, where charge is the fare that a spectator pays when watching a game on a given date. Spectators may be students, adults, or seniors, with each category having its own charge rate. (a) Draw a star schema diagram for the data warehouse. (b) Starting with the base cuboid [date,spectator,location, game], what specific OLAP operations should you perform in order to list the total charge paid by student spectators at GM Place in 2010? (c) Bitmap indexing is useful in data warehousing. Taking this cube as an example, briefly discuss advantages and problems of using a bitmap index structure.
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