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Teacher's note: Since many relationships and cardinalities are determined by an organization's business rules, some students will produce E-R diagrams that are different from those presented here. You
Design an er schema for keeping track of information about votes taken in the U.S. House of Representatives during the current two- year congressional session. The database needs to keep track of the
Draw a simple class diagram representing the relationships among magazines, magazine publishers, and magazine subscribers
Data mining is an extension of database technology. What do you see as the advantages and disadvantages of data mining? Do you think data mining is ethical?
Should the government have a centralized database on all its citizens? Why or why not? Support your answer with at least three resources.
Design a relational database containing information about music performers, their recordings, and the composers of the music they recorded.
Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form
Design a relational database containing information about the physicians, patients, patient history,patient payment history, and patient medications.
Write a two paragraphs explaining why a relational database of the attached document was the best choice for this project. Essay must be logical and free of grammar and spelling errors.Citations are o
Using your knowledge of Premiere Products, determine the functional dependencies that exist in the following table. After determining the functional dependencies, convert this table to an equivalent c
If you operated a business in this city how could you use this tool to support your business. Please give specific examples of how this tool could help a business.
You are the CIO of the newly established Data Mining, Inc. (DMI), a company that specializes in collecting, storing, and analyzing data on customer purchasing habits and then selling its findings to l
Using the EMP and DEPT tables, show a list of all department names and the names of all employees for each department. Be sure to show all departments whether there is an employee in the department or
A Relational Model of Data for Large Shared Data Banks", by Dr. Edgar F. Codd, was published in June 1970 in the Association for Computing Machinery journal. Codd's model became widely accepted as the
The library System stores 3 type of informations:
The lucky Dog Grooming Parlor maintains data about each of its clients in a table named tblClients. Attributes include each dog's name, breed, and ownder's name, all of which are text attributes. The
What are some of the key differences between a flat file and a relational database? Which of the two storage methods do you think is most useful in a real-world application?
A new supplier, RGF (Really Good Food) has been approved. RGF supplys all the same items as CBC, but 50 cents cheaper. Show the insert statements required to enter this information into the l_foods an
The security accounts manager (SAM) database contains information on all user profiles. User account set-up populates the database. Describe the fields and options associated with user account set-up.
Create an XML file that's the equivalent of this database. Enter some data - let's say 2 racetracks, 8 horses, 10 races, and 15 results. The data can be real or fictional.
Design a database for Ray. He is interested in movies and wants to keep information on movies, actors, and directors in a database. The only user is Ray, and he needs to produce the following reports:
Student(sum: integer, sname: string, major: string, level: string, age: integer) Class(name: string, meets at: time, room: string, fid: integer) Enrolled(snum: integer, cname: string) Faculty(fid: int
Describe what the term "data redundancy" means in database design. Explain if it is bad and if a normalized database design is always the best design. Discuss the pros and cons of a normalized databas
Provide the SQL, save it as Q5A.sql that will crate the Video_ Title table. The table contain information about videos in a database.