System analysis and designIT243Assignment 2Considering the following ER-Diagram, answer the following questions:Course OfferingsTime : datetimeStudentStudent CourseSectionNum : intSID : intName : varchar(255)Program : varchar(255)Roomld : intCourseNo : intSemester : char(2)Year : intStudentSID : intStudentSID : intMarks : intExaminationID : intStudent_Course StudentSID : intName : varchar(255)Place : varchar(255)Columna) What is the main role of an ER diagram in data modelling?b) How many courses each student can have?c) What is the relationship degree between the entities?d) Is there an associative entity, if yes can you name it?e) What is uniquely identifying the student entity table (Primary Key)?

An ER diagram stands for entity relationship diagram. In an E-R diagram, an entity is a real-world…

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Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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ITCS 285
Explain the diagram
Topic: Database Design and Entity Relationship Diagrams Please convert the below diagram to Crow's Foot notation. Here is the relational schema: Relational Diagram (Schema) Position: Position_ID Title Volunteer: Person_ID Gender_ID Occupation Status Notes Position_ID Location: Location_id Location_Name Street_No Street_Name PostalCode Phone CommunityContact: Organization_ID Person_ID Notes Location_ID Event: Event_ID Type Event_Date Location_Name Location_ID VolunteerShift: Shift_ID Start_Time End_Time Event_ID Person_ID Pending: Pending_ID CV Cover_Letter Interview VolunteerClass: VolunteerClass_ID Training_Graduation_Date NonPending: Person_ID Active Date_Inactive VolunteerClass_ID Workshop: Workshop_ID Event_ID Name GuestSpeaker: Event_ID Person_ID Subject_ID GuestSpeakerShift: Event_ID Person_ID Subject_ID Start_Time…
What is the difference between a data attribute and a data item in the data hierarchy? What is an attribute's scope?
Indicate the changes (using the shorthand representation) that you would need to make to the original KimTay Pet Supplies database design to support the following requirements. There is no relationship between customers and sales reps. When a customer places an order, any sales rep can process the order and create the invoice. On the invoice, you need to identify both the customer placing the order and the sales rep responsible for the invoice. Draw an E-R diagram for the new design.
You have been asked to design and implement a database for CTU, which includes 3 entities (tables), as follows: Students Faculty Courses Part 1 Create a Word document that includes the following: Identify at least 3 attributes for each entity, including the following: Student's entity should have an attribute for the program the student is enrolled in. Faculty should have an attribute identifying their rank. Properly identify all of the primary keys (use solid underlines). Create an entity relationship diagram (ERD) from the entities. You may use SmartDraw, Visio, Erwin, or even Word to draw the diagram. Take a screenshot (no need if you use Word), and insert it into the Word document. Part 2 Use Microsoft Access to implement the database that you designed in Part 1, and include the following: Create the Student, Faculty, and Course tables in Access. Add a few instances in each table. Create 2 queries for the following objectives: Find the student names for all students who are in the…
Database Lab (CE 450) ( Task 9) B) Objective: Design the Appropriate Database Schema for ER diagram: 1. Identify the tables for the Database. 2. Identify the columns for the tables. 3. Identify the constraints(PRIMARY KEY,UNIQUE,NOT NULL,FOREIGN KEY ) constraints for the columns. An ER diagram for a BANK database schema BRANCHES BANK_BRANCH BANK Code Name Addr Addr Branch_no АСCTS LOANS Acct_no Balance Loan_no Amount ACCOUNT Туре Туре LOAN M A_C LC (Tname Mname Lname Bdate Ssn Name Age Phones CUSTOMER Addr
Normalize to third normal form and complete the crow's foot ER Diagram for the following: Career Services would like to keep track of internships. A first attempt at a "database" placed information in an excel worksheet - here is an example: Stu-Name Stu-Cell 223334433 Gimli Gloin 980-224-3333 2169 Stu-ID Stu-Advisor-ID Stu-Advisor-Name Arwen Elrond Stu-Advisor-email Internship-ID/Internship-Desc/Internship-Company/Hire-Date arwen@uncc.edu 01 - DB Analyst - Wells Fargo - 1/1/2021 55 - DB Analyst2 - Bank of America - 6/2/2021 39 - Programmer - Food Lion - 9/2/2021 Business Rules: • A student can have zero to many internships. • An internship can have zero to many students • A student has one and only one advisor • An advisor has one to many students • You do not have to subdivide elements (i.e. turn Stu-Name into Stu-First and Stu-Last)
Design an E-R model for garage repair shop based on the following order form: DATE: UTD WORK ORDER #: GARAGE REPAIR ORDER NAME ACCOUNT SIGNATURE WITH AUTHORITY FOR ACCOUNT DEPARTMENT EXTENSION DESCRIPTION OF PROBLEM LICENSE * MILEAGE YEAR MAKE MODEL QTY PART NO. PARTS UNIT PRICE SERVICES PERFORMED (1) Labor SUBLET (2) Parts MECHANIC SIGNATURE UTD Labor TOTAL PARTS & LABOR Revised 8/oe
Transform the above ER diagram into Relational Schemas Only Anser
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