Generalized key indexes
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United States of America Patent
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Feb 9, 1999
Grant Date -
N/A
app pub date -
Jul 9, 1996
filing date -
Jul 9, 1996
priority date (Note) -
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Abstract
Generalized key indexes enable a first table of a relational database to be indexed using an index key and index conditions, wherein either or both of the index key and index conditions may reference multiple tables of the database or may be an expression using fields of one or more tables other than the first table. The generalized key indexes directly associate generalized index key values with record identifiers of records of the first table, thus enabling efficient storage and data retrieval.
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