![]() A relational database, on the other hand, is based on the relational model proposed by E.F. Since both the programming language and OODBMS use the same object-oriented model, the programmers can maintain the consistency easily between the two environments.The main difference between Object Oriented Database and Object Relational Database is that Object Oriented Database is a database that represents data in the form of objects like in Object Oriented Programming while Object Relational Database is a database that is based on the relational model and object-oriented database model.Ī database allows storing and managing data easily. Object-oriented languages such as Java, C#, Visual Basic. OODBMSs enforce object oriented programming concepts such as encapsulation, polymorphism and inheritance as well as database management concepts such as Atomicity, Consistency, Isolation and Durability. OODBMSs provide an integrated application development environment by joining object-oriented programming with database technology. OODBMSs were developed in 1980s to overcome the limitations in RDMSs such as handling large and complex data. OODBMS is a DBMS which allows information to be represented in the form of objects as used in object-oriented programming. Currently most of the dominant DBMSs such as IBM’s DB2 family, Oracle, Microsoft’s Access and SQL Server are RDMS. Further, RDMSs do not have enough storage area to handle data such as images, digital audio and video. ![]() One limitation is that their lack of efficiency when working with languages other than SQL and also all the information must be in tables where relationships between entities are defined by values. There are some notable limitations in RDBMSs also. After a database is created, user can add new data categories to the database without changing the existing application. The biggest advantage of RDBMSs is its easiness for users to create/ access and extend data. Secondly, each value found in the table columns should not be repeated and finally the Standard Query Language (SQL) must be used. Firstly, all information must be held in the form of a table. Following three important fundamentals should be followed by a RDBMS. These concepts are based on the 13 rules for a relational system developed by Ted Codd. ![]() Main elements of a RDBMS are the concepts of relational integrity and normalization. RDMSs are developed by extending hierarchical and the network models, which were two previous database systems. Each column corresponds to an attribute of the relation and each row corresponds to a record that consists of data values for an entity. So, a relational database can simply be seen as a collection of one or more relations or tables with columns and rows. ![]() As mentioned earlier RDBMS is based on the relational model and data in a RDMS are stored in the form of related tables. ![]()
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