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Database Systems: Concepts, Design and Applications by S. K. Singh

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16.2. History of Object-relational DBMS (ORDBMS)

In response to the weaknesses of relational database systems (RDBMSs) and in defence of the potential threats posed by the rise of the OODBMSs, the RDBMS community extended the RDBMS with objected-oriented features. Let us first discuss the inherent weaknesses of legacy RDBMS, the requirement of storage and manipulation of complex objects by the modern database applications followed by the emergence of relational ODBMSs.

16.2.1. Weaknesses of RDBMS

The inherent weaknesses of relational database management systems (RDBMSs) make them unsuitable for the modern database applications. Some of the weaknesses of RDBMSs are listed below:

  • Poor representation of ‘real world’ entities resulting out of the ...

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