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| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Dean Liu | -- | 1123 | 2022-11-04 01:48:34 |
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An object-relational database (ORD), or object-relational database management system (ORDBMS), is a database management system (DBMS) similar to a relational database, but with an object-oriented database model: objects, classes and inheritance are directly supported in database schemas and in the query language. In addition, just as with pure relational systems, it supports extension of the data model with custom data types and methods. An object-relational database can be said to provide a middle ground between relational databases and object-oriented databases. In object-relational databases, the approach is essentially that of relational databases: the data resides in the database and is manipulated collectively with queries in a query language; at the other extreme are OODBMSes in which the database is essentially a persistent object store for software written in an object-oriented programming language, with a programming API for storing and retrieving objects, and little or no specific support for querying.
References
- Frank Stajano (1995), A Gentle Introduction to Relational and Object Oriented Databases, https://www.cl.cam.ac.uk/~fms27/db/tr-98-2.pdf
- Naman Sogani (2015), Technical Paper Review, http://home.iitk.ac.in/~namansg/cs300/3C.pdf, retrieved 2015-10-05
- Date, Christopher ‘Chris’ J; Darwen, Hugh, The Third Manifesto
- Stonebraker,. Michael with Moore, Dorothy. Object-Relational DBMSs: The Next Great Wave. Morgan Kaufmann Publishers, 1996. ISBN:1-55860-397-2.
- There was, at the time, a dispute whether the term was coined by Michael Stonebraker of Illustra or Won Kim of UniSQL.
