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Welcome to the Advanced SQL MCQs Page

Dive deep into the fascinating world of Advanced SQL with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Advanced SQL, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Advanced 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 Advanced 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 Advanced SQL. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Advanced SQL MCQs | Page 7 of 8

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Q61.
The project operation’s function in relational algebra is identical to the _______ clause in SQL

a.

where

b.

from

c.

select

d.

none of the mentioned

Discuss
Answer: (c).select
Q62.
What does the following relational operation perform?
ρx(A1,A2,A3…) (E)

a.

It returns the result of expression E with the previous attribute names

b.

It returns the result of expression E renaming the attributes as A1, A2, …

c.

It returns the result of the relation E but saves the old attributes

d.

None of the mentioned

Discuss
Answer: (b).It returns the result of expression E renaming the attributes as A1, A2, …
Q63.
What does the following relational algebra expression do?
σamount > 1200 (loan)

a.

Finds all the tuples in loan

b.

Finds the tuples in loan where the amount is greater than 12000

c.

Finds all the tuples in loan where the amount is greater than 1200

d.

Finds all the amounts in loan where the number of values is greater than 1200

Discuss
Answer: (c).Finds all the tuples in loan where the amount is greater than 1200
Q64.
How is the left outer join symbol represented in relational algebra?

a.

⟕

b.

⟖

c.

⟗

d.

⋈

Discuss
Answer: (a).⟕
Q65.
How is the right outer join symbol represented in relational algebra?

a.

⟕

b.

⟖

c.

⟗

d.

⋈

Discuss
Answer: (b).⟖
Q66.
Πcustomer_name, loan_number, amount (borrower ⋈loan)

What does the above expression perform?

a.

It finds the customer_name, loan_number and amount from borrower

b.

It finds the customer_name, loan_number and amount from loan

c.

It finds the customer_name, loan_number and amount from the full outer join of borrower and loan

d.

It finds the customer_name, loan_number and amount from the natural join of borrower and loan

Discuss
Answer: (d).It finds the customer_name, loan_number and amount from the natural join of borrower and loan
Q67.
Updating, Deleting and Inserting in relational algebra is done using the ________ operator

a.

Assignment

b.

Modification

c.

Alteration

d.

Inclusion

Discuss
Answer: (a).Assignment
Q68.
State true or false: There exists a division operator in Relational Algebra

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q69.
The collections on which aggregate functions can operate are called as __________

a.

Multisets

b.

Multivalues

c.

Multicollections

d.

Multivariables

Discuss
Answer: (a).Multisets
Q70.
A join of the form r ⨝r.A=s.B s is called as

a.

Equi join

b.

Left outer join

c.

Right outer join

d.

Full outer join

Discuss
Answer: (a).Equi join
Page 7 of 8

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