Considering the following ER-Diagram, answer the following questions: Course Offerings Time : datetime Student SID : int Name : varchar(255) Program : varchar(255) Student_Course SectionNum : int...

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Considering the following ER-Diagram, answer the following questions:<br>Course Offerings<br>Time : datetime<br>Student<br>SID : int<br>Name : varchar(255)<br>Program : varchar(255)<br>Student_Course<br>SectionNum : int<br>Roomld : int<br>CourseNo : int<br>Semester : char(2)<br>Year : int<br>StudentSID : int<br>StudentSID : Int<br>Marks: int<br>Examination<br>ID : int<br>Student_Course StudentSID : int<br>Name : varchar(255)<br>Place : varchar(255)<br>Column<br>a) What is the main role of an ER diagram in data modelling?<br>b) How many courses each student can have?<br>c) What is the relationship degree between the entities?<br>d) Is there an associative entity, if yes can you name it?<br>e) What is uniquely identifying the student entity table (Primary Key)?<br>

Extracted text: Considering the following ER-Diagram, answer the following questions: Course Offerings Time : datetime Student SID : int Name : varchar(255) Program : varchar(255) Student_Course SectionNum : int Roomld : int CourseNo : int Semester : char(2) Year : int StudentSID : int StudentSID : Int Marks: int Examination ID : int Student_Course StudentSID : int Name : varchar(255) Place : varchar(255) Column a) 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)?

Jun 04, 2022

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Considering the following ER-Diagram, answer the following questions: Course Offerings Time : datetime Student SID : int Name : varchar(255) Program : varchar(255) Student_Course SectionNum : int...

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