onsider the below scenario and identify the entities and their relationships and then draw and ER diagram and then its physical design: Consider the following environment of a university. There are academic departments. Each department is identified by a 4 letter code, and has a name, a chairperson, an office and a telephone extension. Each department offers a set of courses. Each course is identified by the department code and a 3 digit number, and has a title and number of units; each course may require any number of prerequisite courses. Certain courses are currently offered; an offering of a course is called a class. A class is identified by a 9 digit class number, is taught by a particular faculty, and meets 1-3 times a week at the particular location. Each faculty is assigned to a single department. Each faculty is identified by a social security number, and has a name, a rank (e.g., assistant professor, associate professor, full professor), and a telephone extension and a set of office hours. The chairperson of a department is always assigned to that department. Each student is identified by a SSN, and has a name, a major department, and an academic status (e.g., undergraduate, graduate, non-degree). Each student is currently enrolled in a number of classes. For each course that the student had taken in the past, a letter grade is available. All locations and office consist of a 3 lette
Consider the below scenario and identify the entities and their relationships and then draw and ER diagram and then its physical design:
Consider the following environment of a university. There are academic departments. Each department is identified by a 4 letter code, and has a name, a chairperson, an office and a telephone extension. Each department offers a set of courses. Each course is identified by the department code and a 3 digit number, and has a title and number of units; each course may require any number of prerequisite courses. Certain courses are currently offered; an offering of a course is called a class. A class is identified by a 9 digit class number, is taught by a particular faculty, and meets 1-3 times a week at the particular location. Each faculty is assigned to a single department. Each faculty is identified by a social security number, and has a name, a rank (e.g., assistant professor, associate professor, full professor), and a telephone extension and a set of office hours. The chairperson of a department is always assigned to that department. Each student is identified by a SSN, and has a name, a major department, and an academic status (e.g., undergraduate, graduate, non-degree). Each student is currently enrolled in a number of classes. For each course that the student had taken in the past, a letter grade is available. All locations and office consist of a 3 letter building code and a 3 digit room number. All telephone extensions are 4 digits.
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