Database Systems MCQs - Chapter 15

Introduction to SQL Multiple Choice Questions (MCQs) PDF Download - 57

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Introduction to SQL Questions & Answers PDF Download: MCQ Quiz 57

MCQ 281: Any attribute that is present in the having clause without being aggregated must appear in the

Group by clause
Select clause
Where clause
Distinct clause

MCQ 282: SQL implicitly extracts the value from the single attribute of the single tuple in the relation, and returns

True
False
Unknown
Value

MCQ 283: The symbol that can be used in the select clause to denote 'all attributes', is

MCQ 284: In SQL, identification of patterns are

Complex
Special case
Case sensitive
Not case sensitive

MCQ 285: The constraint on an attribute specifies that the null value is not allowed for that attribute, is known to be

Candidate key attribute
Foreign key attribute
Unique key attribute
Not Null attribute

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