Object-Relational Database Management System


An Object-Relational Database Management System (ORDBMS) is a database management system that incorporates elements of both relational and object-oriented database models. It stores data in the form of objects, akin to object-oriented programming, while also providing relational database functionalities, such as SQL querying. This database system allows enhanced modularity, reusability, and faster performance.


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Key Takeaways

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  1. ORDMS combines features of Object-Oriented and Relational Models: A powerful feature of an ORDMS is that it combines the capabilities of both the object-oriented database model and the relational database model. This combination allows users to create and manage databases that can handle a greater variety of data types than traditional relational databases.
  2. High-performance and Flexibility: The ORDMS provides high-performance with flexibility for handling complex types of data such as time series, spatial and multimedia data. It allows you to use inheritance, classes, and instances while maintaining all the robust features of a relational system like SQL, atomicity, scalability, and reliability.
  3. Complex Applications: The ORDMS is ideal for complex applications, such as those involving multimedia, geographic information systems, and computer-aided design/computer-aided manufacturing. It provides a high level of integrity, security and recovery mechanisms, which are crucial in managing complex applications.

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The term Object-Relational Database Management System (ORDBMS) is important as it represents a modern and advanced method of data management that combines the capabilities of both relational and object-oriented databases. This hybrid approach enables organizations to handle a wider variety of data types and structures, rendering flexibility and adaptability in processing complex, unstructured, and semi-structured data. Furthermore, ORDBMS facilitates advanced querying and data manipulation features, thus supporting extensibility, reusability, and higher efficiency in managing data. Hence, ORDBMS plays a significant role in powering real-world applications such as geographic information systems, computer-aided design, and web databases that require the management of diverse and intricate data.


The primary purpose of an Object-Relational Database Management System (ORDBMS) is to provide developers with the efficiency of a relational database system, combined with the advantages of an object-oriented programming model. This type of system is important in managing and organizing vast amounts of complex data, especially in applications where the data relationships are complicated or need more descriptive capabilities. For example, geometric and spatial databases, computer-aided design and manufacturing systems use ORDBMS efficiently due to its capacity to handle complex objects and relationships.ORDBMS is exceptionally helpful in scenarios where the data being managed doesn’t fit neatly into a table structure. It allows users to define their data, and the relationships between various kinds of data, directly in the database schema with an abstraction of real-world objects. As a result, ORDBMS brings in greater semantic expressiveness and robust data integrity, enabling programmers to tackle operations and computations from a subtle, abstract level. It’s used extensively in applications that require complex transaction processing, robust utility control, and telecommunications & networking technologies.


1. PostgreSQL: It is a highly popular open-source Object-Relational Database Management System (ORDBMS) used around the world by many organizations for its advanced functionalities, robustness, and scalability. PostgreSQL supports user-defined objects, inheritance, and functions which makes it a perfect example of an ORDBMS.2. Oracle Database: This is a widely used ORDBMS by many large corporations for managing and structuring their data. As an ORDBMS, Oracle supports complex objects, user-defined types, and also supports embedding objects in a relational table.3. IBM’s DB2: DB2 is an example of a hybrid model ORDBMS that offers the ability to store, retrieve, manage, and manipulate data stored as objects in a relational database. IBM DB2 is used by many businesses and organizations for its scalability and efficient handling of both structured and unstructured data.

Frequently Asked Questions(FAQ)

**Q: What is an Object-Relational Database Management System (ORDBMS)?**A: An ORDBMS stands for Object-Relational Database Management System. It integrates the features of traditional database systems with the added support for object-oriented programming and data models. **Q: What is the purpose of an ORDBMS?**A: The main purpose of an ORDBMS is to bridge the gap between the relational and object-oriented models by providing functionalities to support both models in a single system.**Q: What are the major benefits of using an ORDBMS?**A: An ORDBMS offers a few significant benefits including flexibility, faster development of applications, increased reliability, enhanced performance and scalability, and support for complex objects and relationships.**Q: Can you provide examples of applications or fields where an ORDBMS would be beneficial?**A: ORDBMS is beneficial in areas such as data warehousing, computer-aided design, and web-based e-commerce systems where advanced database capabilities, transaction support, and performance are required.**Q: How does an ORDBMS differ from a traditional database management system?**A: Unlike a traditional DBMS, an ORDBMS supports advanced operations such as object-oriented data modeling. This allows more complex types of data and relationships to be represented which is not possible in a conventional DBMS. **Q: What are the popular ORDBMS products available on the market?**A: Some of the popular ORDBMS products include Oracle Database, IBM DB2, and PostgreSQL.**Q: Does handling ORDBMS require special skills or knowledge?**A: It does require some knowledge in both relational database concepts and object-oriented programming principles. The blend of these two different concepts can make it a bit complex for beginners to understand.**Q: Is it necessary for a business to shift from a DBMS to an ORDBMS?**A: It depends on the specific needs of the business. If a business requires more complex data management support and benefits related to object-oriented programming, then it may consider moving to an ORDBMS.

Related Tech Terms

  • Entity-Relationship Model
  • SQL (Structured Query Language)
  • Data mapping
  • Inheritance
  • Polymorphism

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