MySQL Questions and Answers – The order by Clauses – 2

This set of MySQL Multiple Choice Questions & Answers (MCQs) focuses on “The order by Clauses – 2”.

1. Keyword “ASC” and “DESC” cannot be used without which clause in Mysql?
a) ORDER BY
b) GROUP BY
c) SELECT
d) HAVING
View Answer

2. What is the significance of “ORDER BY emp_id DESC” in the following MySQL command?

SELECT emp_id, fname, lname
FROM person
ORDER BY emp_id DESC;

a) Data of emp_id will be sorted in descending order
b) Data of emp_id will be sorted in ascending order
c) Data of emp_id will be sorted in either ascending or descending order
d) All of the mentioned
View Answer

3. What is the significance of “ORDER BY emp_id ASC” in the following MySQL command?

SELECT emp_id, fname, lname
FROM person
ORDER BY emp_id ASC;

a) Data of emp_id will be sorted in descending order
b) Data of emp_id will be sorted in ascending order
c) Data of emp_id will be sorted in either ascending or descending order
d) All of the mentioned
View Answer

4. If emp_id contain the following set {9, 7, 6, 4, 3, 1, 2}, what will be the output on execution of the following MySQL command?

SELECT emp_id
FROM person
ORDER BY emp_id DESC;

a) {9, 7, 6, 4, 3, 1, 2}
b) {1, 2, 3, 4, 6, 7, 9}
c) {2, 1, 3, 4, 6, 7, 9}
d) None of the mentioned
View Answer

5. If emp_id contain the following set {9, 7, 6, 4, 3, 1, 2}, what will be the output on execution of the following MySQL command?

SELECT emp_id
FROM person
ORDER BY emp_id ASC;

a) {9, 7, 6, 4, 3, 1, 2}
b) {1, 2, 3, 4, 6, 7, 9}
c) {2, 1, 3, 4, 6, 7, 9}
d) None of the mentioned
View Answer

6. Find odd one out?
a) GROUP BY
b) DESC
c) ASC
d) ORDER BY
View Answer

7. Is there any error in the following MySQL command?

SELECT emp_id, title, start_date, fname, fed_id
FROM person
ORDER BY RIGHT (fed_id, 3);

a) Yes
b) No error
c) Depends
d) None of the mentioned
View Answer

8. Is there any error in the following MySQL command?

SELECT emp_id, title, start_date, fname, fed_id
FROM person
ORDER BY LEFT (fed_id, 3);

a) Yes
b) No error
c) Depends
d) None of the mentioned
View Answer

9. Is there any error in the following MySQL command?

SELECT emp_id, title, start_date, fname, fed_id
FROM person
ORDER BY 2, 5;

a) Yes
b) No
c) Depends
d) None of the mentioned
View Answer

Sanfoundry Global Education & Learning Series – MySQL Database.

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