What are the different levels of abstraction in a DBMS?Physical LevelLogical LevelTop LevelView LevelEntity Level

The different levels of abstraction in a Database Management System (DBMS) are:

1. Physical Level: This is the lowest level of abstraction. It describes how the data is stored in the database, including all the complex low-level data structures and storage mechanisms. It deals with the physical storage of the data.

2. Logical Level: This level represents the data and the relationships that exist between various data. It provides a view that hides the details of the physical level and represents the data in the database in a form that users or applications can understand.

3. View Level: This is the highest level of abstraction. It provides a user-friendly interface by hiding the complexity of the physical and logical levels. It allows users to interact with the database system by providing them with a customized view of the database, which may include only a subset of the database.

4. Top Level: This level is also known as the external level. It describes the way in which data is viewed by individual users. Each user can have a different view of the data, depending on their needs.

5. Entity Level: This level is not typically considered a standard level of abstraction in a DBMS. However, in some contexts, it might refer to the conceptual or schema level, which describes what data is stored in the database and what relationships exist among those data. This level is typically designed by a database administrator or a database designer.