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What are advantages of object models?
Object models are efficient for communicating with the application experts and reaching a consensus about the significant aspects of the problem. Object models help developers to achieve a consistent, efficient, understandable and correct database design.
examples of fields in a database
.#question. Discuss the problem which may arise during concurrency control and recovery in distributed database which are not encountered in controlized database environment.
What are the two types of blocks in the fixed -length representation? Define them. Anchor block: Have the first record of a chain. Overflow block: Have the records other tha
random file sharing
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
Give the reasons for allowing concurrency? The reasons for allowing concurrency is if the transactions run serially, a short transaction might have to wait for a preceding long
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
Explain the Weak Entity Set An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in
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