Currently the Section_identifier in the SECTION schema serves as the unique identifier for that schema. Suppose we change it so that it now just stores the section number for each course, i.e. MTH321-01 and MTH110-01 would both have the same section number (01). Describe the changes required (if any) in other schemas due to this change.

Figure 2.1 Schema diagram for the database in Figure 1.2. STUDENT Name Student number Class Major COURSE PREREQUISITE Course_number Prerequisite_number SECTION Section_identifier Course number Semester Year Instructor GRADE REPORT Student_number Section_identifier Grade