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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 data
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
How Relational Calculus is different from Relational Algebra? What do understand by TRC queries and DRC queries? Ans: Relational calculus contain two calculi, the tuple relati
#questiontypes of keys examples..
What is it ?
Which are the two ways in which entities can participate in a relationship? Total and partial are the two ways in which entities can participate in a relationship
Object Oriented model :An object has values stored in instance variables within the object. An object also has bodies of code that execute on the object. These bodies of code are
Define Database layer? The database layer defines the data formats used in the database.
Which two tools are used to administer users for Active Directory?
What is theta join explain? Theta Join - The theta join operation is an extension to the natural-join operation which permits us to merge selection and a Cartesian
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