DeVry MIS 562 iLab 7 in MySQL

For Part 1 Q1, you don’t need to run SQL and no output is required.
For Part 1 Q2, be sure to include output
For part 2 running the stored procedure, please refer to the document under Announcement. You must include an output for all three questions

Part 1
Question SQL statement or Answer

1) Analyze the following query and write a description of the output it produces. (20 points)
Do not run a query

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1. SELECT COUNT(DECODE(SIGN(total_capacity-20), -1, 1, 0, 1)) “<=20″,
2. COUNT(DECODE(SIGN(total_capacity-21), 0, 1, -1, NULL,
3. DECODE(SIGN(total_capacity-30), -1, 1)))”21-30″,
4. COUNT(DECODE(SIGN(total_capacity-30), 1, 1)) “31+”
5. FROM
6. (SELECT SUM(capacity) total_capacity, course_no
7. FROM section
8. GROUP BY course_no)

You don’t need to execute SQL Query and you are not required to provide executed output

2) Determine the top three highest salary from department 10, 20 and 30 (20 points)

Part 2

Write a stored procedure using the student schema: submit the output with your answer (20 points)
Write a stored function using the student schema: submit the output with your answer (20 points)
Write a trigger using the student schema: submit the output with your answer (20 points)