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Briefly explain what is to be done during defining problem statement.
To define Problem Statement of a system, define what is to be done and how you can go to implement that. Your statement should include mandatory features, as well as the optional features of system to be developed.
You should include:
What is problem and its scope,
What is required?
Application context
Assumptions
Performance needs.
Describe the candidate key functions ? Candidate Key and Alternate Key: In some instances, an entity will have more than one attribute which can serve as a primary key. Any key
In which format database schema is written ? Data base schema is written in the DDL format.
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
What is disadvantage of multiple inheritances? There is potential ambiguity if the similar variable or method can be inherited from more than one superclass.eg: student class m
Normal 0 false false false EN-US X-NONE X-NONE
need a DBMS system on any data for assignment.
Relational Algebra is a set of basic operations used to influence the data in relational model. These operations allow the user to specify basic retrieval request. The result of re
Describe the shadow paging technique.
Differentiate between horizontal & mixed horizontal fragmentation?
Describe Specialsation and generalization? Specialisation /generalization: This is a top down and bottom up approach to the design of database. It displays the IS_A relation
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