Comparison of object–relational database management systems
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This is a comparison of object-relational database management systems (ORDBMSs). Each system has at least some features of an object-relational database; they vary widely in their completeness and the approaches taken.
The following tables compare general and technical information; please see the individual products' articles for further information. This article is not all-inclusive nor necessarily up to date. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs.
Fundamental features
Information about what fundamental ORDBMSes features are implemented natively.
Type | Method | Type inheritance | Table inheritance | |
---|---|---|---|---|
CUBRID | Yes | Yes | Yes | Yes |
LogicSQL[1] | ? | ? | ? | ? |
Oracle | Yes | Yes[2] | Yes | Yes |
OpenLink Virtuoso | Yes | Yes | Yes | Yes |
PostgreSQL | Yes | Yes | Yes | Yes |
Informix | Yes | Yes | Yes | Yes |
Data types
Information about what data types are implemented natively.
Array | List | Set | Multiset | Object reference | |
---|---|---|---|---|---|
CUBRID | Yes | Yes | Yes | Yes | Yes |
LogicSQL | ? | ? | ? | ? | ? |
Oracle | Yes | Yes | Yes | Yes | Yes |
OpenLink Virtuoso | Yes | Yes | Yes | Yes | Yes |
PostgreSQL | Yes | Yes | Yes | Yes | Yes |
Informix | No | Yes | Yes | Yes | Yes |
References
- ^ http://webdocs.cs.ualberta.ca/~yuan/databases/index.html
- ^ No private methods, no way to call super method from a child.
See also
- Comparison of database tools
- Comparison of relational database management systems
- List of relational database management systems
External links
- Arvin.dk, Comparison of different SQL implementations