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Define the term Domain.
For each n every attribute there is a set of permitted values known as the domain of that attribute.
what is bogus empowerment. And what is genuine empowerment
explain normalisation
Question: (a) Prepare an ERD for the scenario given below. (b) Convert the ER diagram produced in (a) above into its physical design. You have to choose an appropriate Pri
Define the terms entity, attribute, role and relationship between the entities, giving examples for each of them. Ans: Entity: An entity is a "thing" or "object" in th
Discuss how the bi-directional Implementations are made. In bi-directional implementation of the association, a pair of references must implement every link. The declarations a
What is Hierarchical DBMS In HDBMS, data is structured in a tree like manner. There is a parent-child relationship between data items and the data model is very suitable for re
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
What are the ways in which the variable-length records arise in database systems? Storage of many record types in a file. Record types that permit variable lengths for one o
Performance of Various Concurrency Control Mechanisms
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