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Comparison of object–relational database management systems

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The following tables compare general and technical information for a number of object-relational database management systems. Please see the individual products' articles for further information. This article is not all-inclusive or necessarily up-to-date.

For information other than object-relational features, please refer to comparison of relational database management systems.

Fundamental features

Information about what fundamental RDBMSes features are implemented natively.

Type Method Type inheritance Table inheritance
Oracle Yes Yes Yes No
PostgreSQL Yes No No Yes
Type Method Type inheritance Table inheritance

Data types

Information about what data types are implemented natively.

Array Set Multiset Object reference
Oracle Yes Yes Yes Yes
PostgreSQL Yes Yes No No
Array Set Multiset Object reference
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