Method and apparatus for modifying existing relational database schemas to reflect changes made in a corresponding object model
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United States of America Patent
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Feb 10, 1998
Grant Date -
N/A
app pub date -
Jul 7, 1995
filing date -
Jul 7, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An object model comprises one or more semantic objects that represent items about which data is stored in a relational database in a computer system. Each semantic object has one or more components that define the data stored for each item. The object model is mapped into a current relational database schema. As a user makes changes to the model the computer system generates a proposed relational database schema, and the differences between the current relational database schema and the proposed relational database schema are determined. The relation database is modified to reflect changes made in the corresponding object model based upon the differences between the current and proposed relational database schemas.
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