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Use SQL to create the following database; to including referential integrity. You may NOT use the GUI for this part of the exercise.
COURSE ( CourseNu, CourseName, CreditHrs)SECTION ( CallNu, Semester, Year, BuildName, RoomNu, EnrollmentMax)STUDENT ( SID, SName, SAdd, STelephone)INSTRUCTOR ( IID, IName, IRoomNu)
Courses have sections; each section is associated with one course. Students enroll in sections, but each section may only have that student enrolled once. Instructors teach sections. There is NO team teaching.
Create use case to describe a typical sales process. Then make a sequence diagram for use case.
Create tables in 3NF. As you create the database, include different codes for at least three of the fields. Use sample data to populate fields for at least three records in each table.
Sketch hash table of length 11 which results from using hash function h(i) = (2i + 5) mod 11, to hash the keys 12, 44, 13, 88, 23, 94, 11, and 39,
You have a file which contains credit card records. Each record contains field for the card number, expiration date, and name of card holder. Explain what primary problem you try to solve is.
The DBA denormalized some of the data in the Premiere Products database to improve performance. Which field or fields cause the table to no longer be in third normal form? In which normal form is the denormalized table?
Design and build a prototype data warehouse using the data on Spend over £25,000 in the Science and Technology Facilities Council
Difference between obsolescent and redundant stocks
Select an appropriate statistical measure to compare consistency of sales. Make the calculations and write a report. In your calculations, include the mean sales for each salesperson.
Suppose that we replace the wait and signal operations of monitors with a single construct await(B), where B is a general Boolean expression. Write a monitor using this scheme to implement the readers--writers problem.
Write a program that models an employee. An employee has an employee number, a name, an address, and a hire date. A name consists of a first name and a last name.
Explain what is the purpose of Database? The purpose of a database is to store information about certain types of objects. Give an example of two related TABLES.
Design an updateable database for storing customer and sales data. Explain how to deal with the problems of missing data.
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