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What does authentication refer?
Authentication refers to the task of verifying the uniqueness of a person.
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
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Give the two reasons for allowing concurrency
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
Q.1 Briefly discuss the different layers of ANSI SPARC architecture. Ans: The three layers of ANSI SPARC architecture are like this: 1. Internal view is at the lowest leve
how to calculate frequency count of algorithm
Question: AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
What is inheritance? Inheritance is an object orientation concept that allows reusability of code / design. Basic sense of inheritance is that if one class is predefined than a
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