Question: Consider the relation schemas shown in Section below , which were generated from the E-R diagram. For each schema, specify what foreign key constraints, if

course_id course_dept course course id title credits prereq instructor ID name salary prereq_id inst_dept teaches sec_course department dept_name building budget advisor section sec_id. semester Bear sec_class classroom building room number capacity stud_dept takes student ID name tot_cred sec_time_slot Figure 6.15 E-R diagram for a university enterprise. grade time_slot time slot id [day start_time end_time

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