Using an epoch number to optimize access with rowid columns and direct row access
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United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
May 28, 1999
filing date -
Sep 24, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method, apparatus, and article of manufacture for accessing a row in a database. In accordance with the present invention, the database is stored on a data storage device connected to a computer. An identification number is generated for a region, wherein the identification number associated with the region reflects row movement in the region. The identification number is updated when there is row movement in the region. When accessing a row in the region, whether to perform a direct row access is determined based on the identification number.
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