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MIS 562 Week 7 Homework Roles and Privileges
Part 1
Using the following Data Dictionary views write the statements that will perform the following actions. Be sure to test your statements. (Do not use SELECT *)
ROLE_ROLE_PRIVS
ROLE_SYS_PRIVS
ROLE_TAB_PRIVS
USER_ROLE_PRIVS
USER_SYS_PRIVS
USER_TAB_PRIVS
Question SQL statement or Answer
1. Determine what privileges your account has been granted through a role. (10 points)
2. Determine what system privileges your account has been granted. (10 points)
3.Execute the following statement then determine what table privileges your account has been granted. (15 points)
Grant select on student to public;
4. Determine what system privileges the DVONLINE role has. (10 points)
5. Analyze the following query and write a description of the output it produces. (15 points)
SELECT COUNT(DECODE(SIGN(total_capacity-20), -1, 1, 0, 1)) "<=20",
COUNT(DECODE(SIGN(total_capacity-21), 0, 1, -1, NULL,
DECODE(SIGN(total_capacity-30), -1, 1)))"21-30",
COUNT(DECODE(SIGN(total_capacity-30), 1, 1)) "31+"
FROM
(SELECT SUM(capacity) total_capacity, course_no
FROM section
GROUP BY course_no)
6. Determine the top three zip codes where most of the students live. Use an analytical function. The query will product 10 rows. (10 points)
Part 2
Analyze the file from Doc Share called utlpwdmg.sql and analyze the code in this file. Write a paragraph that describes what the function performs. What are the inputs parameters, the output parameter and what does the function do? (30 points)
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