Consider the following schema: Lecturer (LID, Name, Address, Age, Salary) Student (SID, Name, Address, Age, Phone,...
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Consider the following schema: Lecturer (LID, Name, Address, Age, Salary) Student (SID, Name, Address, Age, Phone, Course) - EID is part of a composite primary Course (CID, Name, LID, Department) Department (DID, Name, LID, CID) Instructions: i. A lecturer can teach many courses and each course is taught by one or more lecturers. But, sometimes a lecturer may not teach any course at all. j. A lecturer can be assigned to exactly one department but each department can have one or more lecturers. 1. Draw an ERD Diagram to illustrate the above information or schema. 2pts 2. Discuss three integrity rules in your data model and demonstrate how these were applied in your ERD (1PT) Act Consider the following schema: Lecturer (LID, Name, Address, Age, Salary) Student (SID, Name, Address, Age, Phone, Course) - EID is part of a composite primary Course (CID, Name, LID, Department) Department (DID, Name, LID, CID) Instructions: i. A lecturer can teach many courses and each course is taught by one or more lecturers. But, sometimes a lecturer may not teach any course at all. j. A lecturer can be assigned to exactly one department but each department can have one or more lecturers. 1. Draw an ERD Diagram to illustrate the above information or schema. 2pts 2. Discuss three integrity rules in your data model and demonstrate how these were applied in your ERD (1PT) Act
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Related Book For
Fundamentals of Database Systems
ISBN: 978-0136086208
6th edition
Authors: Ramez Elmasri, Shamkant Navathe
Posted Date:
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