| 摘要 |
A system addresses backward compatibility between two databases by capturing the latest definition and structure of a referenced model database and providing the information for use in creating object information usable by a database management application of a first database for accessing data in a different second database and that supports compatible operation following a version upgrade of either or both the database management application and the second database. A system for providing compatibility between different first and second databases includes a repository of first object information. The first object information indicates characteristics of a first version of a second database including, a data structure, data objects accessed by a management application of a first database and associated properties of the data objects. A data processor uses the first object information in generating second object information by incorporating in the second object information, data objects acquired from a second version of the second database. The second object information being for use by the management application of a first database in accessing data objects from the second version of the second database.
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