📄 que_058.htm
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<b>QUESTION 058 </b>
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<p>Examine the structure of the STUDENTS table:</p><table border="1" bordercolor="gray">
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<p><b>STUDENTS table: </b></p>
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<p><b>STUDENT_ID NUMBER NOT NULL, Primary Key </b></p>
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<p><b>STUDENT_NAME VARCHAR2(30) </b></p>
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<p><b>COURSE_ID VARCHAR2(10) NOT NULL </b></p>
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<p><b>MARKS NUMBER </b></p>
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<p><b>START_DATE DATE </b></p>
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<p><b>FINISH_DATE DATE </b></p>
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<p>You need to create a report of the 10 students who achieved the highest ranking in the course INT SQL and who completed the course in the year 1999.
Which SQL statement accomplishes this task? </p><table border="1" bordercolor="gray" width="665">
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<p><b><input type="radio" name="AN" value="A"> A.</b></p>
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<p> SELECT student_ id, marks, ROWNUM "Rank" <br>
FROM students <br>
WHERE ROWNUM <= 10 <br>
AND finish_date BETWEEN '01-JAN-99' AND '31-DEC-99' <br>
AND course_id = 'INT_SQL' <br>
ORDER BY marks DESC;
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<p><b><input type="radio" name="AN" value="B"> B.</b></p>
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<p> SELECT student_id, marks, ROWID "Rank" <br>
FROM students <br>
WHERE ROWID <= 10 <br>
AND finish_date BETWEEN '01-JAN-99' AND '31-DEC-99' <br>
AND course_id = 'INT_SQL' <br>
ORDER BY marks;
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<p><b><input type="radio" name="AN" value="C"> C.</b></p>
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<p> SELECT student_id, marks, ROWNUM "Rank" <br>
FROM (SELECT student_id, marks <br>
FROM students <br>
WHERE ROWNUM <= 10 <br>
AND finish_date BETWEEN '01-JAN-99' AND <br>
AND course_id = 'INT_SQL' <br>
ORDER BY marks DESC);
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<p><b><input type="radio" name="AN" value="D"> D.</b></p>
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<p> SELECT student_id, marks, ROWNUM "Rank" <br>
FROM (SELECT student_id, marks <br>
FROM students <br>
ORDER BY marks DESC) <br>
WHERE ROWNUM <= 10 <br>
AND finish_date BETWEEN '01-JAN-99' AND '31-DEC-99'AND course_id = 'INT_SQL';</b></p>
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