Q. 1 Consider a university database for the scheduling of classrooms for final exams. This database could be modeled as the single entity set exam, with attributes course-name, section-number, room-number, and time. Alternatively, one or more additional entity sets could be defined, along with relationship sets to replace some of the attributes of the exam entity set, as 1. course with attributes name, department, and c-number 2. section with attributes s-number and enrollment, and dependent as a weak entity set on course 3. room with attributes r-number, capacity, and building Show an E-R diagram illustrating the use of all three additional entity sets Listed and also specify the primary keys all

Q. 1 Consider a university database for the scheduling of classrooms for final exams. This database could be modeled as the single entity set exam, with attributes course-name, section-number, room-number, and time. Alternatively, one or more additional entity sets could be defined, along with relationship sets to replace some of the attributes of the exam entity set, as 1. course with attributes name, department, and c-number 2. section with attributes s-number and enrollment, and dependent as a weak entity set on course 3. room with attributes r-number, capacity, and building Show an E-R diagram illustrating the use of all three additional entity sets Listed and also specify the primary keys all

Principles of Information Systems (MindTap Course List)

12th Edition

ISBN:9781285867168

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter5: Database Systems And Applications

Section: Chapter Questions

Problem 4PSE: Using a graphics program, develop an entity-relationship diagram for a database application for an...

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Consider a university database for the scheduling of classrooms for -final exams. This database could be modeled as the single entity set exam, with attributes course-name, section number, room-number, and time. Alternatively, one or more additional entity sets could be defined, along with relationship sets to replace some of the attributes of the exam entity set, as 1.course with attributes name, department, and c-number 2. section with attributes s-number and enrollment, and dependent as a weak entity set on course 3. room with attributes r-number, capacity, and building Show an E-R diagram illustrating the use of all three additional entity sets listed
Draw The following ER Model: Consider a university database for the scheduling of classrooms for final exams. This database could be modeled as the single entity set exam, with attributes course-name, section-number, room-number, and time. Alternatively, one or more additional entity sets could be defined, along with relationship sets to replace some of the attributes of the exam entity set, as • course with attributes name, department, and c- number • section with attributes s-number and enrollment, and dependent as a weak entity set on course • room with attributes r-number, capacity, and building a) Show an E-R diagram illustrating the use of all three additional entity sets listed. b) Explain what application characteristics would influence a decision to include or not to include each of the additional entity sets.
Create the Entity Relationship (ER) Diagram for the following scenario. We want to maintain a database for a Faculty within a multi-campus regional university. The faculty has a number of schools and each school is characterized by its school-code which is unique, name and campus location. Schools employ professors who are characterized by their unique staff-id, name and the school they work for. A school offers courses that are characterized by their course-code which is unique, course name and the school. There are subjects offered within the faculty and these arecharacterized by unique subject-code, title and the school that offers them. Students enroll into courses that are characterized by student-id which is unique, name, address and phone.The following business rules apply• A course must belong to only one school, but a school may have many courses• A student must be enrolled in a course, but a course may have 0 or more students• A course must have one or more subjects, but a…
A well-structured database starts from an effective Entity Relationship Diagram (ERD). For this part of the question, you will need to sketch an ERD for the following gym scenario: A member must have a member ID, name and contact number, can be enrolled in one or more gym session. A gym session can be enrolled in by one or more members. Each gym session is identified by a session ID, and has a name, date and instructor details (Instructor ID). An instructor has an instructor ID, name and contact number, and must only be assigned to one gym session. A gym session can have one or more instructors assigned in it.” *show entities, relationship types and cardinalities. Crow’s foot model notations recommended.
ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist office and service details. are there strong and weak entities, recursive relationships and different attribute types are involved ? would you identify what eachentity are relationship are and to describe all constraintsrelated to them
Please written by computer source Part I - Modeling You are building a database for a comic book store customer management system. Given the database specification below, your job is to turn the specification into an ER diagram. Your notation must be consistent with the notation used in our lecture notes. You can use all constructs and notations discussed in our lecture notes and nothing else (i.e.. oven notations used in the textbooks but not in our lectures cannot be used). Your ER diagram should capture all the information and constraints in the specification but, at the same time, be minimal. It means that redundant entities, relationships, attributes and constraints should be avoided. You may use any drawing tool of your choice (for example, Dia, diagrams.net, Lucidchart, etc.) to draw your ER diagram. Hand drawings will not be accepted. Database Specification The database keeps information about comic books, customers, orders, inventory and reviews. First, the database should…
Consider a database that includes the entity sets student, course, and sectionfrom the university schema and that additionally records the marks that studentsreceive in different exams of different sections.a. Construct an E-R diagram that models exams as entities and uses a ternaryrelationship as part of the design.b. Construct an alternative E-R diagram that uses only a binary relationshipbetween student and section. Make sure that only one relationship existsbetween a particular student and section pair, yet you can represent themarks that a student gets in different exams.
Design an Entity-Relationship diagram for the below environment. determine 1-Total participation.2-Partial participation Consider a MAIL_ORDER database in which employees take orders for parts from customers. The data requirements are summarized as follows: o The mail order company has employees, each identified by a unique employee number, first and last name, and Zip Code. o Each customer of the company is identified by a unique customer num, first and last name, and Zip Code. o Each part is identified by a unique part number, a part name, price, and quantity. o Each order placed by a customer is taken by an employee and is given a unique order number. Each order contains specified quantities of one or more parts. Each order has a date of receipt as well as an expected ship date. The actual ship date is also recorded.
Create an ER diagram that correctly describes the database for exams at Campus in Bäcksvängen in accordance with the following description: (Own assumptions must be clearly described.) Staff for various functions are involved in the exams. All staff have a full name and a unique staff code. Some people are examiners on one or more courses. A course has one name and one unique ladok code. For a course, you can add up its points based on the associated elements. One part is part of a course (for example an exam, a laboratory or project). A course can have several different parts. An element has a name, a description, a torque code, one point and two or more grades (eg: U, G, VG). An element can only belong to one course. Since the database is to process the exams, it is obvious that a part like described as an examination has an examination opportunity that is identified, among other things, by the date, start time, end time and that it is possible to calculate total writing time. A…
These questions are in sequence and the previous question needs to be referred to answer the next question: This is the previous question that was askedQuestion 1(question to be answered at the end): Create the Entity-Relationship (ER) Diagram for the following scenario: We want to maintain a database for a Faculty within a multi-campus regional university. The faculty has a number of schools and each school is characterized by its school-code which is unique, name, and campus location. Schools employ professors who are characterized by their unique staff-id, name and the school they work for. A school offers courses that are characterized by their course-code which is unique, course name and the school. There are subjects offered within the faculty and these arecharacterized by unique subject-code, title and the school that offers them. Students enroll into courses that are characterized by student-id which is unique, name, address and phone.The following business rules apply• A…
1. Draw an E/R diagram for a University database. This database should contain information about the university's students, departments, professors, teaching assistants (also students of the university), courses offered by a department, which students are enrolled in what courses, which professors are teaching which courses, student letter grades. You may include any other information deemed appropriate. • Some restrictions apply as listed below| 1. A Professor only works in at most one department. 2. Students and professors have been assigned unique email id's 3. A course is only taught by one professor and offered by one department. 4. A course is uniquely identified by the course number, section number and semester. Example: CSCE520-001 Spring21 5. A course has at most one TA.
Draw the ER diagram based on the following specification. A tutorial school is using a database to manage information about teachers, courses, and students. Each teacher is identified by staff_id, has a name, an email address, and a phone number. Each student is identified by student_id, has a name, an email address, and a registration date. Each course is identified by course_id, year, and semester. In addition, each course has a name. Each course is associated with multiple lessons. A lesson has a lesson number, a location, a date, a start-time, and an end-time. Lesson numbers are sequentially numbers, starting from 1, generated separately for each course. Each teacher teaches at least one course. Each student takes at least one course. Each course is taught by one teacher. Each course can be taken by many students.