SQL Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to SQL. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 2 - What is returned by SUBSTR(‘TUTORIALS POINT’, 1, 9)?

A - TUTORIAL

B - POINT

C - TUTORIALS

D - UTORIALS

Answer : C

Q 3 - Consider the following schema −

HONOURS_SUBJECT(subject_code, subject_name, department_head);
LOCATIONS(subject_code, department_name, location_id, city);

Which query will perform a natural join between the HONOURS_SUBJECT table and the LOCATIONS table?

A - select subject_code, subject_name, location_id, city from honours_subject cross join locations;

B - select subject_code, subject_name, location_id, city from honours_subject join locations;

C - select subject_code, subject_name, location_id, city from honours_subject outer join locations;

D - select subject_code, subject_name, location_id, city from honours_subject natural join locations;

Answer : D

Q 5 - You want to calculate the minimum percentage of marks obtained under each honours group students, where the minimum marks is more than the minimum marks in economics department. Under which clause should the subquery be?

A - WHERE clause

B - FROM clause

C - HAVING clause

D - None of the above.

Answer : C

Q 8 - Consider the following schema −

STUDENTS(student_code, first_name, last_name, email, 
         phone_no, date_of_birth, honours_subject, percentage_of_marks);

Which of the following code will create a simple view named all_marks_english that contains the names and percentage of marks of the students in the honours_subject ‘Eng01’?

A - create view all_marks_english as select first_name, last_name, percentage_of_marks from students where honours_subject = ‘Eng01’;

B - create view all_marks_english as ( first_name, last_name, percentage_of_marks from students where honours_subject = ‘Eng01’);

C - select view all_marks_english as select first_name, last_name, percentage_of_marks from students where honours_subject = ‘Eng01’;

D - None of the above.

Answer : A

Answer : C

Q 10 - Which of the following statements allows William to change his database user account password to bill?

A - create user william identified by bill;

B - alter user william identified by bill

C - create user william password bill;

D - alter user william password bill;

Answer : B

sql_questions_answers.htm
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