Database Systems MCQs – Mock Test 394

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The "Additional Basic Operations MCQ" App Download (Android & iOS): Special character % is used to match; MCQ with answers: a number only, an alphabet only, string, and substring. Practice Introduction to SQL Questions and Answers, Google Book to download free chapter for database optimization studies.

Additional Basic Operations MCQ PDF Download – Mock Test 394

MCQ 1966: The special character % is used to match:

An alphabet only
A number only
Substring
String

MCQ 1967: A relation schema is a set of attributes, but not all sets of attributes are:

Schemas
Relationship sets
Domain
Multi-leveled

MCQ 1968: The local date and time without time zone is returned with the method:

timestamp.current
current.timestamp
localtimestamp
system.localtimestamp

MCQ 1969: The type of constraint that relates to more than one lower-level entity set within a single generalization, is said to be:

System-defined
Condition-defined
Data-defined
User-defined

MCQ 1970: If the argument subquery contains no duplicate tuples, the unique construct returns:

TRUE
False
Unknown
Exists

Database Systems MCQ App & eBook – Additional Basic Operations Study Material

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