HomeworkLib
Question

At a college, the college offers courses. For each course, one or more sections can be...

At a college, the college offers courses. For each course, one or more sections can be offered. A section is only for one course. A section is identified by CourseID and SectionID combined. A section is taught by only one instructor. An instructor can teach many courses. Assume you are doing this for the current semester and are not worried about past or future semesters. a. Identify the entities for this college. b. Identify the relationships between entities and the cardinalities of the relationship. c. Draw an ER diagram for the college. Think of some relevant attributes for your entities and show them on the diagram.

business   Operations-Management   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

rb Se cheng Couse Dunatten Tsa cha Tach Insh a ctr Phone first ame

0 0
Add a comment
Know the answer?
Add Answer to:
At a college, the college offers courses. For each course, one or more sections can be...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • At a college, the college offers courses and students register for courses. A student can register...

    At a college, the college offers courses and students register for courses. A student can register for one or more courses. In a course there can be one or more students. Assume you are doing this for the current semester and are not worried about past or future semesters 1. a. Identify the entities for this college. b. Identify the relationships between entities and the cardinalities of the relationship. c. Draw an ER diagram for the college. Think of some...

  • Design an ER diagram for a database for the Emory College. Here are some facts about...

    Design an ER diagram for a database for the Emory College. Here are some facts about the college: The Emory College consists of a number of Departments (MathCS, Physics, etc) A department has a unique name, address, phone number and can have a number of faculty members. A faculty member has SSN, name, office, phone number and salary A department has one department chair with a starting date A department can teach a number of courses A course has a...

  • 1) A university database contains information about professors (identified by emp_id) and courses (identified by course_id)....

    1) A university database contains information about professors (identified by emp_id) and courses (identified by course_id). Professors teach courses. Each of the following situations concerns the Teaches relationship set. For each situation, draw an ER diagram that describes it (assuming no further constraints hold). a) Professors can teach the same course in several semesters, and each offering must be recorded. b) Professors can teach the same course in several semesters, and only the most recent such offering needs to be...

  • Draw the domain class diagram for the following question. You should identify the necessary classes and...

    Draw the domain class diagram for the following question. You should identify the necessary classes and the types of relationships connecting them, in order to closely model the provided information. Include the names, role names, and multiplicities for all associations. Provide the directionality for the aggregations and reflexive associations, if you use them in your diagram. Identify at least two attributes for each class. Methods are not required. Question: At a university, courses are offered as course sections, and a...

  • Questions of this part analyze the students’ understanding in analyzing the given scenario and practical skills...

    Questions of this part analyze the students’ understanding in analyzing the given scenario and practical skills to build Class diagrams studied in chapters 8, 10 and 12of IT242. The “SES” administration would desire to have a database system to keep track of students, instructors, courses, assessments, and grades. Read the following paragraph to answer the given questions. The system maintains courses’ information. For each course, the system keeps a unique course code, name and credit hours. Each course offered in...

  • write sql queries] 9. The total number of sections taught by each instructor in each (semester,...

    write sql queries] 9. The total number of sections taught by each instructor in each (semester, year) 10. The total number of D and F grades in each (semester, year) 11. The total number of D and F grades in each (semester, year) for the “Graph Theory” course write sql queries U Ausigrument 11 * C Gullerewors llea With Chege x + - IX € → C a su.instructure.com/courses/34607/assignments/863706 Part 1 For the following database schema, write SQL queries to...

  • Create an ER Diagram showing all entities and relationships that describe the scenario below: You are...

    Create an ER Diagram showing all entities and relationships that describe the scenario below: You are commissioned to design a database to keep records of a small college. You talked with various key members of this community and obtained the following information: The college keeps information about students and student performance. Every student is known by her/his first name, initials and last name. They are also identified by a unique StudentID provided by the University. Every student also belongs to...

  • A University database contains information about students (identified by social security number, or SSN) and courses...

    A University database contains information about students (identified by social security number, or SSN) and courses (identified by courseid). Students enroll in courses; each of the following situations concerns the Enrolls-In relationship set. For each situation, draw an ER diagram that describes it (assuming no further constraints hold). 1.Students can enroll in the same course in several semesters, and each offering must be recorded. 2. Students can enroll in the same course in several semesters, and only the most recent...

  • Find all courses taught by Mozart. For each such course, output the title, semester, and year.

    Query 1 (2 pts)Find all courses taught by Mozart. For each such course, output the title, semester, and year.Query 2 (2 pts)Find the names of all students who took both “Intro. to Computer Science” and “Game Design”.Query 3 (2 pts)Find the names of all instructors in the computer science department who never taught “Intro. to Computer Science”.Query 4 (2 pts)For each student, find the number of courses taken by this student. Output a table consisting of two columns: name of...

  • Part. II Please draw ER Diagram and write relational data model for the following business. 1....

    Part. II Please draw ER Diagram and write relational data model for the following business. 1. IT Training IT Specialists is a company to provide IT courses in programming, database development and Web applications. Business rules include: » Each course is identified by a unique course number (cNo) and other course attributes include: course name (cName), course description, pre-requirements . At least one and up to many sections can be offered by each course. » Each section is identified by...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT