Pearson eText for Modern Database Management -- Instant Access (Pearson+)
13th Edition
ISBN: 9780137305940
Author: Jeffrey Hoffer, Ramesh Venkataraman
Publisher: PEARSON+
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Chapter 8, Problem 8.45PAE
Program Plan Intro
To choose the oracle data types for the attributes in the normalized relations for the given figure.
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Using the relations that I attached, defined and normalized, create the SQL DDL statements necessary to implement database schema as an OpenOffice database. You may also implement your database in MySQL, IBM DB2 Express, Microsoft Access, SQL Server if you have access to these database systems. The answer should include a document that contains all of the SQL statements that you created and a screenshot that shows the structures that you implemented in the database of your choice. Your DDL statements must accommodate the following elements:
Create statements to create tables from the entities defined as part of the attachment.
Appropriate use of Null (and Not Null) parameters to ensure data validity
Appropriate use of constraint clauses to implement appropriate referential integrity
Use of data types and formats that is appropriate for the data in your database schema.
Appropriate use of keys including automatic generation of key values if appropriate
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* the…
Question
a. Normalization is an important concept for database professionals. Whether
you are the designer, database analyst or administrator, it is useful for
designing, situation verification as well as performance tuning. In your
opinion discuss the basic issues to be aware of before carrying out the
normalization process.
b. Given the following relational schema and its functional dependencies:
Rentallnfo
custNo propertyNo custName pAddress rentStart ownerNo OName
fd1
fd2
fd3
fd4
fd5
Specify candidate keys and state the primary key.
Assuming that the relation is in first normal form (1NF), describe
and illustrate the process of normalizing the relational schema to
second (2NF) and third (3NF) normal forms. Identify the primary
and foreign keys in your third normal forms.
ii.
Question 2
UNISHOP is a company that manages equipment products,
invoices from their respective vendors and sales representatives
(SalesRep). UNISHOP vendors have been complaining about poor
management of their product handling in the current manual
system. As a result, the top management has decided that
information related to the vendors should be organized using a
DBMS. You have been hired to design the database. Draw an
Entity Relationship Diagram (ERD) to represent the database based
on the requirements given below:
· An Invoice is used to keep track of the Product manage by
SalesRep.
customerName, customerAddress and customercity. The
invoice is uniquely identified by its unique invoiceld. The
invoice is written by only one salesrep but a salesrep may
write zero or many invoices
· SalesRep stores information about SalesRepID, SalesRepName
and SalesRep Tel.
· SalesRep manages the products. The Products store information
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Chapter 8 Solutions
Pearson eText for Modern Database Management -- Instant Access (Pearson+)
Ch. 8 - Prob. 8.1RQCh. 8 - Prob. 8.2RQCh. 8 - Prob. 8.3RQCh. 8 - Prob. 8.4RQCh. 8 - Prob. 8.5RQCh. 8 - Prob. 8.6RQCh. 8 - Prob. 8.7RQCh. 8 - Prob. 8.8RQCh. 8 - Explain why you sometimes have to reserve much...Ch. 8 - Why are field values sometimes coded?
Ch. 8 - Prob. 8.11RQCh. 8 - Prob. 8.12RQCh. 8 - Explain why normalized relations may not comprise...Ch. 8 - Prob. 8.14RQCh. 8 - List three common situations that suggest that...Ch. 8 - Explain the reasons why some experts are against...Ch. 8 - Prob. 8.17RQCh. 8 - Prob. 8.18RQCh. 8 - Prob. 8.19RQCh. 8 - Prob. 8.20RQCh. 8 - Prob. 8.21RQCh. 8 - Prob. 8.22RQCh. 8 - One of the strongest recommendations regarding...Ch. 8 - Explain why an index is useful only if there is...Ch. 8 - Indexing can clearly be very beneficial. Why...Ch. 8 - Prob. 8.26RQCh. 8 - Prob. 8.27RQCh. 8 - Describe the role of data dictionary in the...Ch. 8 - Prob. 8.29RQCh. 8 - Prob. 8.30RQCh. 8 - Explain how creating a view may increase data...Ch. 8 - Prob. 8.32RQCh. 8 - Prob. 8.33RQCh. 8 - Prob. 8.34RQCh. 8 - Prob. 8.35RQCh. 8 - Prob. 8.36RQCh. 8 - Prob. 8.37RQCh. 8 - Prob. 8.38RQCh. 8 - Prob. 8.39RQCh. 8 - How can views be used as part of data security?...Ch. 8 - Prob. 8.41RQCh. 8 - Prob. 8.42RQCh. 8 - Consider the following two relations for...Ch. 8 - Prob. 8.44PAECh. 8 - Prob. 8.45PAECh. 8 - Prob. 8.46PAECh. 8 - Prob. 8.47PAECh. 8 - Suppose you are designing a default value for the...Ch. 8 - When a student has not chosen a major at a...Ch. 8 - Prob. 8.50PAECh. 8 - Prob. 8.51PAECh. 8 - Consider the relations in Problem and Exercise...Ch. 8 - Prob. 8.53PAECh. 8 - Prob. 8.54PAECh. 8 - Prob. 8.55PAECh. 8 - Prob. 8.56PAECh. 8 - Prob. 8.57PAECh. 8 - Consider the relations specified in Problem and...Ch. 8 - Prob. 8.59PAECh. 8 - Prob. 8.60PAECh. 8 - Prob. 8.61PAECh. 8 - Prob. 8.62PAECh. 8 - Prob. 8.63PAECh. 8 - Prob. 8.64PAECh. 8 - Problems and Exercises 8-65 through 8-68 refer to...Ch. 8 - Prob. 8.66PAECh. 8 - Problems and Exercises 8-65i5 through 8-68 refer...Ch. 8 - Refer to Figure 4-5 0. For each of the following...Ch. 8 - Prob. 8.69PAECh. 8 - Prob. 8.70PAECh. 8 - Prob. 8.71PAECh. 8 - Prob. 8.72PAECh. 8 - Prob. 8.73PAECh. 8 - Prob. 8.74PAECh. 8 - Prob. 8.75PAECh. 8 - Prob. 8.76PAECh. 8 - Prob. 8.77PAE
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