Professional DBAs that have worked with real-world business applications may think, how does the object-relational
approach work with modern Oracle?
Oracle8i was an object-relational database management system (ORDBMS), which means that users could define additional kinds of data, specifying both the structure of the data and the ways of operating on the data and use these types within the relational model. This approach added value to the data stored within a database.
User-defined data types make it easier for application developers to work with complex data such as images, audio, and video.
Object types store structured business data in its natural form and allow applications to retrieve it that way. For this reason, they work efficiently with applications developed using oject-oriented programming techniques.
The object-relational model allows users to define new sets of data types and models drawn from the object programming languages.
This means you can create persistent objects
within the database and access them through an API (application programming interface) from C++, Java, and other programming languages. This object-relational approach
specifies both the structure of the data and the methods of operating on the data.
We will look at the details of defining methods later in the course. In the next lesson, we will begin by explaining the reasons to use Oracle objects.
The object-relational model allows users to define object types, specifying both the structure of the data and the methods of operating on the data,
and to use these datatypes within the relational model.