Given the following relational database schema:

Student = (SSN, Name, Major)

Course = ( CourseNumber, PrerequisiteCourseNumber, Course Title, NumberUnits)

Section = ( CourseNumber, Quarter, RoomNumber, DayTime), where DayTime is of the form MW 1:0-2:00PM.

Enrollment = (SSN,CourseNumber, Quarter, Grade)// Grade is either Null or a letter grade.

Express the following queries using appropriate SQL statements with a minimum number of operations:

List the name, SSN , the number of courses the student has taken, and the number of courses completed(courses with the same CourseNumber taken in different quarters are counted as different courses).