SQL MCQs – Practice Test for Exam Prep

SQL Server Multiple Choice Questions and Answers PDF

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The MCQ: Output generated by boolean expression not unknown is; "SQL MCQs" App Download [Free] with answers: unknown, true, false, and null for online software engineering classes. Study SQL Server Multiple Choice Questions and Answers FAQs, download Google e-Book (Free Chapter) for free online classes.

SQL MCQs with Answers – PDF Download

MCQ 1: The output generated by the boolean expression not unknown is:

Unknown
True
False
Null

MCQ 2: Aggregate functions are said to take a set or multiset of values as input and return:

Single value
Multiple sets
Multiple attributes
Multiple values

MCQ 3: An aggregate function of SQL that demands the input to be a collection of numbers is known to be:

Avg
Sum
Both A and B
Min/Max

MCQ 4: The clause when is used in a query, demands elimination of duplicate tuples, is called:

Select Clause
Where Distinct Clause
Select distinct Clause
From Distinct Clause

MCQ 5: Built-in aggregate functions introduced by SQL can be classified into:

2 types
3 types
4 types
5 types

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