| Summary: | 碩士 === 國立成功大學 === 資訊工程學系研究所 === 85 === In this thesis, we dicuss the design and implement action of a Gateway for O
ODB users to access freely to both OODB and any connecting RDBs. The Gatewa
y designed here use the ObjectPro/ODB developed by Institute for Information I
ndustry (III) as an example DBMS. The theory developed in this research, howev
er,is generally applicable to other OODBMSs. In between the Gateway and RDBs,
there is an interface command converter ODBC ( Open DataBase Connectivity ). W
e adopt ODBC because of its popularity and supporting for most existing RDBMSs
. In this thesis, we discuss schema translation ( translation between OODB sch
ema and RDB schema), query translation ( translating OODB query to standard SQ
L), and data transformation ( transforming RDB tuples to OODB objects).
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