Automatic database statistics creation
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United States of America Patent
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Mar 19, 2002
Grant Date -
N/A
app pub date -
Dec 16, 1998
filing date -
Dec 16, 1998
priority date (Note) -
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Abstract
A system for automatic statistics creation comprises a query optimizer which automatically generates statistics derived from data in a database and selects an executable procedure from a plurality of procedures that operate on data in a database using the automatically generated statistics. A counter is maintained of updates made to each statistic that has been automatically generated. If the counter breaches a threshold, the automatically generated statistic is removed from the database.
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