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Welcome to the SQL MCQs Page

Dive deep into the fascinating world of SQL with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of SQL, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of SQL, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

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Check out the MCQs below to embark on an enriching journey through SQL. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of SQL. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

SQL MCQs | Page 35 of 38

Q341.
Using the _______ clause retains only one copy of identical tuples
Discuss
Answer: (a).distinct
Discuss
Answer: (d).The query gives the student names where a finite value exists for ID and it excludes identical names
Discuss
Answer: (b).All the values of the studentid for which section is c and roll > 10
Discuss
Answer: (a).It is used to check whether a value is in between two specified values
Q345.
Which of the following is not a built in aggregate function in SQL?
Discuss
Answer: (c).total
Q346.
Observe the given SQL query and choose the correct option.
SELECT branch_name, COUNT (DISTINCT customer_name) 
FROM depositor, account 
WHERE depositor.account_number = account.account_number 
GROUP BY branch_id
Discuss
Answer: (b).The query is syntactically wrong
Q347.
State true or false: SQL does not permit distinct with count(*)
Discuss
Answer: (a).True
Q348.
We apply the aggregate function to a group of sets of tuples using the _______ clause.
Discuss
Answer: (a).group by
Q349.
Choose the correct option regarding the query:
SELECT branch_name, COUNT (DISTINCT customer_name) 
FROM depositor, account 
WHERE depositor.account_number = account.account_number 
       GROUP BY branch_id
       HAVING avg(balance) = 10000;
Discuss
Answer: (c).The having clause allows only those tuples that have average balance 10000
Q350.
The _____ aggregation operation adds up all the values of the attribute
Discuss
Answer: (d).sum

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