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This question was created from Lab 8 SQL https://www.coursehero.com/file/14087858/Lab-8-SQL/

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Here is an example of what the answers should look like this #3 from this document, select student.course.COURSE_NO, DESCRIPTION, REVENUE FROM student.COURSE inner join student.COURSE_REVENUE on student.course.course_no = student.course_revenue.course_no WHERE REVENUE IS NOT NULL order by revenue desc;

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20. Display the following result table using the Coalesce function.
MIDTERM_GRADE
FINALEXAM GRADE
QUIZ_GRADE
Default of 0
90
50
100
90
80
95
(null)
80
(null )
(null )
98
98
[null )
78
85
78
(null )
[null )
(null )

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