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Question 5: ERD and Relational Schema 10 marks Figure 1 shows an ER diagram for a...
2. The following figure shows an ER schema for a university database. a) Map this schema into a relational schema b)Show the SQL statements needed to create the relations, using proper constraints. If your translation cannot capture any constraints in the ER diagram, explain why. COffice CName CPhone COLLEGE 0. 1 D Rank Office IName IPhone INSTRUCTOR D EAN (0.NO CStartDate (0.1) <ADMINS . CHIAR (1,1) EMPLOYS (MName FName LName (SName DOB DName Sid IO.NO Name Poate DEPT on H...
DATABASES You are required to design and implement a relational database to help the local community center better serve the residents in your neighborhood. Database Specifications: In your preliminary analysis, you have determined the following basic facts about the community center and the services it provides to the residents in the neighborhood: - The community center serves multiple areas which fall into different zip codes. - The community center provides collaborative family based care services. An immediate family is...
DATABASE SYSTEMS Project INDIVIDUAL WORK DELIVERABLE #: SUBMISSION DATE No Group Work Allowed April 8 Introduction to Coursework You have been approached by a University for the design and implementation of a relational database system that will provide information on the courses it offers, the academic departments that run the courses, the academic staff and the enrolled students. The system will be used mainly by the students and the academic staff. The requirement collection and analysis phase of the database...
ChangeRequest(CRID, CRType, CRTitle, CROriginDate, CRPriority, CRNeedEvent, CRStatus) NeedByEvent(Event) CRPrevState(CRID, CRState, StartDate, EndDate) CRAssigned(CRID, EmpID, StartDate, EndDate) Employees(EmpID, FirstName, LastName, JobTitle) ChangeRequest(CRID, CRType, CRTitle, CROriginDate, CRPriority, CRNeedEvent, CRStatus) The CRID is the primary key, it is unique, and it is an positive integer The CRType may be one of two values: "Deficiency" or "Enhancement" CRTitle is a variable length string that may be up to 2048 characters CROriginDate is a date CRPriority is an integer that may assume a value of...