Difference Between Relational Database And Object Oriented Database Pdf

difference between relational database and object oriented database pdf

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There are multiple types of database systems, such as relational database management system, object databases, graph databases, network databases, and document db.

Comparing the Object and Relational Data Models

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Object-oriented database design is not only a simple extension of relational database design. By modeling structure as well as behavior of real-world entities as coherent units, object-oriented database design succeeds in capturing more semantics of applications already in the design phase. The use of objectoriented concepts like inheritance promises a more adequate modeling and a better application implementation based on an object-oriented database system. However, the results of object-oriented design can also be applied to classical database systems. In this paper we briefly compare object-oriented database design with traditional design of relational databases.

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. The basic need of object—relational database arises from the fact that both Relational and Object database have their individual advantages and drawbacks. The isomorphism of the relational database system with a mathematical relation allows it to exploit many useful techniques and theorems from set theory.

Object–relational database

An object-relational database acts as an interface between relational and object-oriented databases because it contains aspects and characteristics from both models. An object-oriented database is organized around objects rather than actions and data rather than logic. Therefore, an object database is a database management system in which information is represented in the form of objects as used in object-oriented programming. Usually, when OODBMS is integrated with an object programming language, there is a much greater consistency between the database and the programming language because both use the same model of data representation. When compared to a relational database management system, an object-oriented database stores complex data and relationships between data directly, without mapping to relational rows and columns whereas a relational database stores information in tables with rows and columns.

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. Ghongade and P. Ghongade , P. Object DBMSs add database functionality to object programming languages.

It is a database management system based on the relational model i. It is a DBMS that enables the user to create, update, administer and interact with a relational database. It is a DBMS where data is represented in the form of objects, as used in object-oriented programming. OODB implements object-oriented concepts such as classes of objects, object identity, polymorphism, encapsulation, and inheritance. An object-oriented database stores complex data as compared to relational database.

What is a Database Model

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Comparing the Object and Relational Data Models

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Database Design: Object-Oriented versus Relational

Types of Database Management Systems

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12 Difference Between Object-Oriented Database And Object-Relational Database

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