Object-Relational Model: A Key Milestone in Database Development
What is the object-relational model and what were some key milestones in its development in the mid-1980s?
Using object-oriented programming languages, object-relational mapping is a programming technique used in computer science to convert data between type systems. As a result, the programming language becomes a "virtual object database" that may be used.
One of the significant achievements throughout the development of the object relational model was the development of a data model that accurately reflected the real world.
One of the milestones during this period was the use of Unified Modeling Language to represent the data models.
Which of the following criteria was a key milestone for the object-relational model created in the mid-1980s?
a.) One of the milestones during this period was introducing the schema.
b.) One of the milestones during this period was the creation of a tuple or a table row within a relation.
c.) One of the milestones during this period was the use of Unified Modeling Language to represent the data models.
d.) One of the milestones during this period was focusing on having support for large databases at a terabyte size.
Answer:
The object-relational model refers to a programming technique used in computer science to convert data between type systems, effectively turning programming languages into virtual object databases. This model was a key milestone in database development in the mid-1980s.
One of the key milestones during this period was the development of data models that accurately represented the real world and stored data and relationships in one place. These data models also supported star schemas in data warehouses, grouping objects with similar characteristics into classes with shared attributes and behaviors.
The use of Unified Modeling Language to represent the data models was another milestone in the object-relational model's development. It allowed for a standardized and visual representation of complex data structures.
The correct option for the key milestone criteria in the object-relational model's creation in the mid-1980s is c.) One of the milestones during this period was the use of Unified Modeling Language to represent the data models.
Detail Explanation:
The object-relational model revolutionized database development by combining object-oriented programming with relational databases, making it easier to manage complex data structures and relationships. This hybrid approach allowed for the representation of real-world entities in a more intuitive and efficient manner.
By creating data models that closely mirrored the real world and supporting star schemas in data warehouses, the object-relational model improved data storage and retrieval processes. The use of Unified Modeling Language further enhanced the understanding and visualization of these data models.
Overall, the object-relational model was a significant milestone in database development history, paving the way for more advanced data management techniques and systems.