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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.
University XYZ needs a database that keeps track of students, what classes they taken and the grades for each of the classes.
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 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.
Create 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 reports.
Indicate the changes (using the shorthand representation) that you would need to make to the original premiere products database desing to support the following requirements.
What is the order P of the B+-tree if B+-tree access structure on the key is constructed? What is the number of leaf-level blocks needed if blocks are approximately 69% full (round up for convenience)?
Examples for small n are given bellow, where a small square box represents an unsuccessful search. Prove that leaves of any binary search tree are located in the bottom two levels.
Create a report which identifies five most expensive bicycles. The report must list bicycles in descending order from most expensive to lease expensive, the quantity on hand for each, and the markup percentage for each.
Find the average number of books borrowed per member. Take into account that if a member does not borrow any books, then that member does not appear in the borrowed relation at all.
What advantage is there in storing metadata in tables? Is Microsoft Access a DBMS? Why or why not? List the several consequences of a poorly designed database.
Describing the purpose of database an its functionality, plus a detailed E-R diagram.
Identify and explain the differences between a stack and a queue data structure
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