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write on the various type of relationalkey
word limit no mentioned
Spanned and unspanned organisation? Spanned and unspanned organization: If records are not permited to cross block boundaries then the organisation is called unspanned record
Functional Dependency Consider a relation R that has 2 attributes A and B. The attribute B of the relation is functionally dependent on the attribute A if and only if for every
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
Identify the need and use of data control through problem solving, illustration
This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
What is the need for triggers? Triggers are useful mechanisms for alerting humans or for starting particular tasks automatically when particular conditions are met.
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