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Computer Science WK3 Assignment

please review the attachment for assignment

Use the PDF book provided to answer the questions listed below. This is not an essay. Do not answer the questions in an essay format. Keep the format the same and answer the questions from each chapter below.


CH 8: The Relational Algebra and Relational Calculus

#8.7 – How are outer join operations different from inner join operations? How is the outer union operation different from unions?

#8.9 – How does tuple relational calculus differ from domain relational calculaus?


CH 9: Mapping EER Model Constructs to Relations

#9.3

Map the relational schema into an ER schema.
This is part of a process known as reverse engineering, where a conceptual schema is created for an existing implemented database.

On page 462 create an ER schema from figure 14.1 below and State any assumptions you make.

#9.4 – On page 304 Figure 9.8 shows an ER schema for a database that may be used to keep track of transport ships and their locations for maritime authorities.

Map this schema into a relational schema, and specify all primary keys and foreign keys.


CH 10: Database Programming Techniques

#10.1 – What is ODBC? How it is related to SQL/CLI?

#10.3 – List the three main approaches to database programming. What are the advantages and disadvantages of each approach?

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