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What is the way a particular application views the data from the database that the application uses?
Sub schema is the way a particular application views the data from the database that the application uses.
explain normalisation
Every simple attribute of an entity type have a possible set of values that can be attached to it. This is known as the domain of an attribute. An attribute cannot have a value out
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
Differentiate between various levels of data abstraction? Data Abstraction - Abstraction is the procedure to hide the irrelevant things from the users and represent the rele
what benefit can a company gain by managing its own infrasture and services
Partial Key : It is a group of attributes that can uniquely identify small entities and that are related to same base entity. It is sometime named as Discriminator. Altern
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
how the string works as keyword?
Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
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