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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 1 of 8

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Q1.
The on condition appears at the _______ of the join expression

a.

Beginning

b.

End

c.

Between

d.

The on condition is not related to join expression

Discuss
Answer: (b).End
Q2.
What is the difference between a join and an outer join operation?

a.

There is no difference

b.

Join preserves a few tuples that are otherwise lost in the outer join

c.

Outer join preserves a few tuples that are otherwise lost in the join

d.

An outer join can be used only on outer queries whereas a join operation can be used in Subqueries

Discuss
Answer: (c).Outer join preserves a few tuples that are otherwise lost in the join
Q3.
The join operations that do not retain mismatched tuples are called as _________ operations

a.

outer join

b.

natural join

c.

full outer join

d.

inner join

Discuss
Answer: (d).inner join
Q4.
What is the function of a left outer join?

a.

It preserves tuples only in the relation named before the operation

b.

It preserves tuples only in the relation named after the operation

c.

It preserved tuples in the relations named on both the sides of the operation

d.

It does not preserve any tuples on either side of the relation

Discuss
Answer: (a).It preserves tuples only in the relation named before the operation
Q5.
What is the function of a full outer join?

a.

It preserves tuples only in the relation named before the operation

b.

It preserves tuples only in the relation named after the operation

c.

It preserved tuples in the relations named on both the sides of the operation

d.

It does not preserve any tuples on either side of the relation

Discuss
Answer: (c).It preserved tuples in the relations named on both the sides of the operation
Q6.
What is the function of a right outer join?

a.

It preserves tuples only in the relation named before the operation

b.

It preserves tuples only in the relation named after the operation

c.

It preserved tuples in the relations named on both the sides of the operation

d.

It does not preserve any tuples on either side of the relation

Discuss
Answer: (b).It preserves tuples only in the relation named after the operation
Q7.
What is the function of inner join?

a.

It preserves tuples only in the relation named before the operation

b.

It preserves tuples only in the relation named after the operation

c.

It preserved tuples in the relations named on both the sides of the operation

d.

It does not preserve any tuples on either side of the relation

Discuss
Answer: (d).It does not preserve any tuples on either side of the relation
Q8.
State true or false: on and where behave differently for outer join

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q9.
Which off the following is not a valid type of join?

a.

left outer join

b.

outer join

c.

join

d.

full join

Discuss
Answer: (d).full join
Q10.
If a left outer join is performed and the tuple on the left hand side does not match with the tuple on the right hand side, what happens to the values that are preserved on the left hand side?

a.

They are given null values

b.

They are given a random value

c.

The user is asked to enter data

d.

The query is declared invalid by the compiler

Discuss
Answer: (a).They are given null values
Page 1 of 8

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