Statistical database query using random sampling of records
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Dec 23, 1996
filing date -
Dec 23, 1996
priority date (Note) -
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Abstract
A system and method for expediting database queries by using random sampling. Data associated with a database attribute is partitioned into multiple data classes using a query language grouping command. Each of the data classes is randomly sampled on an individual basis to obtain a corresponding number of class data samples, each of which are stored in a separate sample database table. Database queries are then applied to each of the class data samples in the sample database table.
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