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1. The DBA denormalized some of the data in the Premiere Products database to improve performance, and oneof the resulting tables is the following:
Customer (CustomerNum, CustomerName, Street, City,State, Zip, Balance, CreditLimit, RepNum, RepName)
Which field or fields cause the table to no longer be in third normal form? In which normal form is the denormalized table?
Implement that entity as a database table with two subtypes, Games and Movie.
Using data mining, it is possible to gather information which has been buried that can be manipulated and cross indexed which could be a valuable information gathering technique for entities.
What rules would have to be enforced based on entity type? Choose one entity type and discuss what enforcement is needed by the database or application.
Draw an object-oriented model for a small private airport database that is used to keep track of airplanes, their owners, airport employees, and pilots.
Your task is to develop a database to support this activity.Here is what you need to be able to provide Custom Auto Body in order to land your first consulting contract:
Explain each of three database models, hierarchical, relational, and object-oriented, and provide specific referenced example of each of these model types implemented in a functioning database
Suppose a database has tables given below. Write the names and e-mail addresses for all customers who have had stove repair which cost more than $50.
Compare activity (quite theoretical) of the disk (in number of bytes) required for each of both relational. Write down the advantages and inconveniences of new relational scheme.
Several times, database triggers are utilized to record logins by users. Here is the example of login trigger that inserts row into table every time a user connects.
Find the name and membership number of members who have borrowed more than five different books of that publisher.
Views are integral part of virtual private databases, yet views are utilized for many other reasons. Find out many other uses for views.
Recognize level within a database system (user, programmer of application software, and designer of the DBMS software) at which each of the following concerns or activities occur.
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