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6.3
Methodology for Adding an Object-Oriented
Interface into Relational Databases
A frame model metadata is presented to add operations of data to RDBMS. It can
be utilized as an object-oriented interface to RDB. With an object agent, it is used to
implement an open object-oriented database connectivity (OODBC) which acts as
a common interface in the heterogeneous RDBs system. The users can access RDB
with frame model meta-data via an OODB application program interface (API) by
OSQL. The OSQL is a query transaction of OODB and is navigational from class to
class. It allows programming of data operations stored in the database and reduces
application program workload. The method call enables users to develop applica-
tion program in stored procedure inside the frame model metadata. The result is
an object-oriented view for RDB. To meet users' requirements, there is a need to
support various RDBs using OODBAPI. Interoperability means the ability of in-
dependently developing systems to operate with each other. An interoperable data-
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