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Comprehensive Database Design and Implementation: EER, Normalization, SQL Injection, Triggers, and Airline Database Schema

A study on advanced database design and implementation techniques.

Ethan Wilson
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Comprehensive Database Design and Implementation: EER, Normalization, SQLInjection, Triggers, and Airline Database SchemaPart 1:Question 1:ExplainthemajorchallengesyoumayencounterwhenyouimplementanEERwithasuperclass/subclass relationship.Explain the possible ways to implement it.What factors willyou will consider when implementing a superclass/subclass relationship? (10 points)Answer:The model which is resulted from enlarging the original E-R model with fresh modelingconstructs such as super-types and subtypes is known as Enhanced entity relationship model(EER). Everything in the real world about which information can be stored is known as entity.The variouschallengesandimplementationways are as described below:Entity relationship diagram is a basically a picture or snapshot about the business system thatis the information stored, created represented by this diagram. Any analyst who knows aboutthe ERD can easily determine the needs of the system and can easily read the everyinformation stored in it.The first category is terms. It relates to the conditions which are implemented for undergoingchanges required.The second category is relationship constraint which is based upon the dependency ofvarious teams upon one another.The third category is super-type or subtype relationships.The variety of types of business rules that are usually confine in an EER diagram areconditions, relationship constraints, and super-type or subtype relationships.The points to show theconsideredfactorsare as given below:There can be a comparison made for distinctive features for an EER diagram. It can be keptunder more details.It can be filled with the statement which describes its requirements. It may also addinformation regarding the volunteers associated. It also is associated with the techniciansused.It gives a clear and a sophisticated approach to the work done.There are many variations in the working of the diagram. It can also bring changes ininformation. It also adds variations in the project.Question 2:

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