What is data independent? Types of independent.(BCA 5 SEM)

 Data Independent:-

The data base structure there are two types of mapping use in different view for data processing and resource processing. It is data many way of working process. It is many devices. It includes

1). Logical data independent:- it describe the conceptual view to be changed without editing the original record store in data base. This change can be create mapping between the external and conceptual level.

2). Physical data independent:- it describe the physical storage space or structure use for store data could be change without necessary changes in conceptual view. It is change can be consist of logical and internal view.

Data base management system user

1. Naive user:- user who need not be aware of data base system or any other system which support to data base and application program.

Example:- Railway and Bank employees.

2. Online user:- many user who communication with directly through online system and create user interface to a application program. It supports all naive user. 

3. Application program:- professional program who are responsible for developing application program.

4. Data base administrater:- It is a individual group of persons which help to control data base in the program system and support to all user which directly represent for create , modify and maintain three level of structure.

Role of Data base management system

1. Safety and security.

2. Recovery of data base.

3. Provide rule and regulation.