Relational database extenders for handling complex data types
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United States of America Patent
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Aug 25, 1998
Grant Date -
N/A
app pub date -
Nov 1, 1995
filing date -
May 1, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention is directed to relational extenders for a computer-based relational database. Each relational extender includes at least one column, in a first, business, table containing a user defined application database, dedicated to object handles for defining the complex data type of an object; a second, attribute, table containing at least one column defining a unique characteristic associated with the one object and one column dedicated to containing the object handle; and a third, metadata, table containing at least one column defining a common characteristic associated with all objects defined within the business table and one column dedicated to containing the object handle and at least one column dedicated to containing a reference to object data associated with the object. The relational extender further includes a fourth table containing a reference to each object handle column defined in the first table, and a fifth table containing the names of the second and third tables for each object defined in the first table.
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