. For more detailed information, you can review the presentation slides on SlideShare Database Chapter 2 | PPT - Slideshare

Data independence is defined as the capacity to change the schema at one level of a database system without having

If there is one concept from Chapter 2 that is guaranteed to be on an exam, it is . The Navathe PPT derives this concept directly from the Three-Schema Architecture.

The PPT begins by defining the blueprint of any database: the Data Model. You will learn the distinction between: