Business Services Industry
Wal-Mart Stores Sales, Customer Information in Data Warehouse.
Knight Ridder/Tribune Business News, August, 1999 by Bischoff, Laura A.
Knight Ridder/Tribune Business News
Aug. 18 -- Wal-Mart Stores Inc. has more than doubled the size of its data warehouse so that it can continue tracking sales, inventories and customer behavior in more than 3,500 stores worldwide.
Wal-Mart has been using NCR Corp. computer equipment to track sales since 1990. The need for more storage space led Wal-Mart to go from a 41 terabyte data warehouse to a 101 terabyte warehouse.
How much data does a single terabyte hold? Try 250 million pages of text, or 362,318 copies of the Dayton area White Pages, or a 15.78 mile stack of copier paper. Multiply that by 101 terabytes and you have a whole lot of information.
Wal-Mart started out with a relatively puny 300 gigabyte data warehouse from NCR...
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