Question: We consider the table Teaching below. Check all statements that are True. We consider an ideal DBMS that would enforce all reactive constraints. CREATE TABLE
We consider the table Teaching below. Check all statements that are True. We consider an ideal DBMS that would enforce all reactive constraints. CREATE TABLE Teaching ( Profld INTEGER, CrsCode CHAR (6), Semester CHAR (6), PRIMARY KEY (CrsCode, Semester), FOREIGN KEY (CrsCode) REFERENCES Course, FOREIGN KEY (Profld) REFERENCES Professor (Id)) If we update a semester in Teaching, nothing happens in Professor. If we delete a professor in Professor, nothing happens in Teaching. If we delete a course (CrsCode) in Course, we set to null the value of CrsCode in Teaching. If we delete a course (CrsCode) in Course, we delete the data about this course in Teaching. Question 10 (10 points) A view exists physically. True False
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