Write an SQL query to answer the following question: Is any instructor qualified

Question

Write an SQL query to answer the following question: Is any

instructor qualified to teach ISM 3113 and not qualified to

teach ISM 4930?

Write SQL queries to answer the following questions:

a. How many students were enrolled in section 2714 during

semester I-2008?

b. How many students were enrolled in ISM 3113 during

semester I-2008?

STUDENT (StudentiD, StudentName) QUALIFIED (FacultylD, CourselD, DateQualified StudentID FacultylDCourselD 38214 54907 FACULTY (FacultylD, FacultyName) FacultylD 2143 4756 SemestCourseID I-2008 I-2008 I-2008 I-2008 ISM 3113 ISM 3113 ISM 4212 COURSE (CourselD, CourseName) REGISTRATION (StudentID, SectionNo, Semester) StudentiD SectionNo ISM 31 ISM 3112 ISM 4212 ISM 4930 13 Syst Analysis 12 Syst Design -2008 -2008 -2008 -2008 38214 2 Database

Explanation / Answer

Quries

1)

SELECT FACULTY.FacultyNAME FROM FACULTY, QUALIFIED WHERE QUALIFIED.FacultyID=FACULTY.FacultyID
AND QUALIFIED.CourseID='ISM 3113'
AND NOT (QUALIFIED.CourseID='ISM 4930')

2)

a) SELECT COUNT (DISTINCT (StudentID)) FROM REGISTRATION WHERE SectionNo = 2714
        AND SEMESTER = 'I-2008'

b) SELECT COUNT (DISTINCT (StudentID)) FROM SECTION, REGISTRATION WHERE SECTION.SectionNO = REGISTRATION.SectionNO AND CourseID = 'ISM 3113' AND Semester = 'I-2008'

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