Question

Which of the following criteria was a key milestone for the object-relational model created in the mid-1980s?

A. the creation of a single structure that contained both data and its relationships
B. the existence of support for unstructured data
C. the use of this data model on ibm mainframe systems
D. identification of all of the data to be stored in a collection of tables with each table being independent and each of the rows in a table being related by common values

Answer 1

The key milestone for the object-relational model was the creation of a single structure combining data and relationships, thus enhancing database technology.

Step-by-step explanation:

The key milestone for the object-relational model created in the mid-1980s was A. the creation of a single structure that contained both data and its relationships. This advancement allowed for the incorporation of complex data types and the relationships between data to be integrated into one system.

This was a significant development in database technology as it extended the relational database model to support more complex applications and types of data.