Object extending method
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United States of America Patent
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Jan 20, 1998
Grant Date -
N/A
app pub date -
Dec 23, 1994
filing date -
Dec 28, 1993
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Abstract
In an object extending method for use in an object-oriented data base system having an object having an attribute, a relation and a procedure and a definition object having definition information determining a structure of the object, information on changes in attribute, relation and procedure which accompany a change in the definition object is held as a parts object in the definition object, and data to be newly appended to the object as a result of the change in the definition object is held as a parts object in the object, so that work to change the object in accordance with a change in schema may be reduced.
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