Q3. Map the following relational model to an ER Model EMPLOYEE PK FK: EmpID EmpID EmpFName EmpLName Supervisor SCHEDULE FK: EMPLOYEE.EmpID EmplD FK: MEDICALCENTER.CenterID HoursScheduled CenterID PK MEDICALCENTER FK: EMPLOYEE EmpID Manager PK CenterID CName DOCTOR PK DocID DocFName DocLName Specialty PATIENT PK FK:DOCTOR.DocID PatientID PFName PLName DocID OUTPATIENT PK /FK: PATIENT.PatientID PatientID VisitDate INPATIENT PK /FK: PATIENT.PatientID PatientID AdmissionDate ΕΧΑΜΙΝΑΤION FK: EMPLOYEE.EmpID FK: PATIENT.PatientID PatientID EmpID Height Weight BloodPressure Temperature PK

Q3. Map the following relational model to an ER Model EMPLOYEE PK FK: EmpID EmpID EmpFName EmpLName Supervisor SCHEDULE FK: EMPLOYEE.EmpID EmplD FK: MEDICALCENTER.CenterID HoursScheduled CenterID PK MEDICALCENTER FK: EMPLOYEE EmpID Manager PK CenterID CName DOCTOR PK DocID DocFName DocLName Specialty PATIENT PK FK:DOCTOR.DocID PatientID PFName PLName DocID OUTPATIENT PK /FK: PATIENT.PatientID PatientID VisitDate INPATIENT PK /FK: PATIENT.PatientID PatientID AdmissionDate ΕΧΑΜΙΝΑΤION FK: EMPLOYEE.EmpID FK: PATIENT.PatientID PatientID EmpID Height Weight BloodPressure Temperature PK

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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5. For the following simple seven-activity project, develop a precedence network, calculate all relevant characteristics of each activity (ES, EF, LS, LF, TF), and calculate the project duration. Then draw a time-scaled network and under it a labor resource histogram for the ES. Do the same for the LS. In both cases, use the maximum allowable number of workers. Make adjustments to the noncritical activities, within the constraints of the ES and LF and the maximum and minimum workers allowed to provide what you feel is the best labor distribution. Please use Table B (Table B.pdf) Lastly, Explain in detail what do you feel is the biggest problem with the ES and LS configurations, and how has this been alleviated with your solution?
This Schema diagram to ER diagram
13. An unnormalized table means that: a. it has repeating groups. b. it has partial and transitive dependencies. c. it is in INF. d. it has no partial and transitive dependencies. 14. The four elements of a data model are Entities, Attributes, Relationships and a. Entity-Relationship diagram b. Primary Keys c. Supertypes and Subtypes d. Constraints
3. Use case model: a. What does a use case diagram depict? b. Create a use case model for a travel agency. This should include all 3 parts of the use case model.
Draw an E-R diagram based on the following relational design.SeniorTeachers(teacherId, name, dept, division)TeachingAssistants(teacherId, name, dept, division).# These can be currently registered students who are employed part-time as teaching assistants,# or they can be PhD students who are employed full-time.Programmes(programmeCode, programmeName, dept, director)director → SeniorTeachers.teacherIdCourses(courseCode, courseName, credits, level, dept, division, ownedBy)ownedBy → Programmes.programmeCode# level is one of “first cycle” or “second cycle”.programmeCourses(programme, academicYear, studyYear, course, courseType)programme→ Programmes.programmeCodecourse → Courses.courseCode# studyYear is “1” or “2” for Master’s programmes and “1”, “2” or “3” for Bachelor’s programmes.# courseType is one of: “compulsory”, “compulsory-elective” or “elective”.# Programmes can include different courses in different academic years.# The same course could have a different courseType in different…
Please help me answer the following questions
A relation FarmVisit is defined below with attributes in the table headings. FarmVisit visitorID visitorName date farmID farmName t1 H001 John 1 Feb 2021 A10 Green Field t2 Н005 Ashley 1 Jan 2021 A10 Green Field t3 но05 Ashley 1 Feb 2021 A10 Green Field t4 H005 Ashley 15 Apr 2021 H02 Есо t5 Но06 Ashley 15 Apr 2021 A11 Green Field a) Write down examples of tuples (i.e., tl, t2) to show neither of the following is a functional dependency: (i) visitorID -> date (ii) date -> farmID b) Write down the functional dependency (FDs) using the above data, which can represent all possible data. The FDs should be non-trivial and the determinants of the FDs should contain minimal number of attributes required. c) Using the tuples given, can (visitorID, farmID) be the primary key of FarmVisit? Explain why. d) What the highest normal form by which the FarmVisit relation can be classified? Explain why.
Map the EER diagram to a relational schema and transform the relation into 3NF
4. Transform the PARTNER supertype in the following model for a DJ business, using Single-Table/Supertype Implementation. supervise 1 PARTNER #id *first name *last name EVENT PLANNER *expertise PO DJ *specialty MANAGER authorized expense limit OTHER supervised by
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Swing Jazz Club ERD Problem Follow the Simple Procedure for ERD diagramming to design an ERD using the following user provided information. Remember the ERD will eventually turn into the design for a database from a top down view. Make sure you resolve any many to many conflicts. Label an identifier or primary key and all pertinent attributes given. If an attribute is not readily apparent from the user information, then make one up that makes sense for the particular entity. Therefore, all entities should end up with at least an identifier and another attribute that makes sense. You may use any of the approaches shown by the book, though the ER-Model and Crow’s foot are the most common. Make sure you show entities, relationships, cardinality, and optionality. Swing Jazz Club The Swing Jazz Club teaches swing and jazz dancing and offers both private and group lessons. Swing Jazz charges $60 dollars per hour for a private lesson and $10 dollars per hour for a group lesson.…
Map the EER diagram to a relational schema and transform the relation into 3NF