Database Systems MCQs – Mock Test 394

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Download "Additional Basic Operations MCQ" App (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 MCQs – Mock Test 394 PDF Download

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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