Database Systems MCQs - Chapter 21

SQL Concepts and Queries Multiple Choice Questions (MCQ) PDF - 38

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The MCQ: To specify the number of fractional digits for seconds, a variant is used, known as; "SQL Concepts and Queries" App Download Android & iOS (Free) with answers time(p), t(p), date(p) and date(s) to learn online courses. Practice sql data types and schemas quiz questions, download Apple Book (Free Sample) for free online classes.

SQL Concepts and Queries Questions & Answers PDF Download: MCQ Quiz 38

MCQ 186: To specify the number of fractional digits for seconds, a variant is used, known as

t(P)
time(p)
date(p)
date(s)

MCQ 187: The join that do not preserve non matched tuples are called

Outer join
Inner join
Left inner join
Left outer join

MCQ 188: Complex check conditions can be useful when we want to ensure integrity of data, but may be

Cheap
Not accurate
Not implementable
Costly

MCQ 189: A view is updatable, if any attribute's value can be set to null if it is not listed in the

Select clause
Where clause
Having clause
From clause

MCQ 190: The database system stores the query expression associated with the

View
View definition
View relation
View schema

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