Database Management System20765 marksThree-Schema Architecture and Data Independence
What is data abstraction? What are three levels of data abstraction? Explain.
What is data abstraction? What are three levels of data abstraction? Explain. [5]
Data abstraction refers to the hiding mechanism of details of data organization and storage, while highlighting the essential features for an improved understanding of data. It allows users to interact with the database without needing to know how data is physically stored or organized internally...