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Database 1-20. For each of the following pairs of related entities, indicate whether (under typical circumstances) there is a one-to- many or a many-to-many relationship.

Database

1-20. For each of the following pairs of related entities, indicate whether (under typical circumstances) there is a one-to- many or a many-to-many relationship. Then, using the shorthand notation introduced in the text, draw a diagram for each of the relationships. a. STUDENT and COURSE (students register for courses) b. BOOK and BOOK COPY (books have copies) c. COURSE and SECTION (courses have sections) d. SECTION and ROOM (sections are scheduled in rooms) e. INSTRUCTOR and COURSE

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