McMillan’s Quizzes. Multiple choice, open book, open notes Not open computers, not open classmates Partial credit: if less than half the class gets a question right, he’ll give half-credit for the next best answer Not easy!. Of the following, which is an advantage of using a
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schema?StudID1( Course1Course2( (T1(1StudID1, 2Course1, 3Semester1, 4Grade1), Transcript)
⋈StudID1=StudID2 (T2(1StudID2, 2Course2, 3Semester2, 4Grade2), Transcript)))
sqlite> SELECT * FROM Sample;
sqlite> SELECT a, MAX(b) FROM Sample;
CREATE TABLE Courses ( schema? number TEXT, semester TEXT, seats INTEGER, PRIMARY KEY(number, semester));CREATE TABLE Enrollment ( student_name TEXT, course_number TEXT, course_semester TEXT, grade INTEGER, PRIMARY KEY(student_name, course_number, course_semester), FOREIGN KEY student_name REFERENCES Students(name), FOREIGN KEY (course_number, course_semester)
REFERENCES Courses(number, semester));