Method and apparatus for performing an aggregate query in a database system
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United States of America Patent
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Apr 6, 1999
Grant Date -
N/A
app pub date -
Jan 31, 1997
filing date -
Jan 31, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a computer-implemented method for generating a response to an aggregate query request on a source database, a random sample of records is extracted from the source database to generate a sample database. Then an aggregate query is performed on the sample database to generate a sample result, and an estimate of the aggregate query request on the source database is derived from the sample result.
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