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Database Systems MCQ Questions

Database Systems MCQs - Chapter

Introduction to SQL Multiple Choice Questions and Answers PDF p. 1

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"The with clause, was introduced in" Multiple Choice Questions (MCQ) on introduction to sql with choices sql:1999, sql:1998, sql:2000, and sql:2001 for computer information science. Practice nested subqueries quiz questions for jobs' assessment test and online courses for jobs' assessment test and online courses for computer software engineer online degree.

MCQs on Introduction to SQL Quiz

1.

The with clause, was introduced in

SQL:1998
SQL:1999
SQL:2000
SQL:2001

2.

To specify duplicate retention, we can use the keyword in place of distinct, which is

Select distinct
Duplicate
Whole
All

3.

An identifier, that is used to rename a relation is referred to as a

Input variable
Clone name
Correlation name
Table alias

4.

The exist construct returns true as a value, if the argument subquery is

Empty
Not empty
Exist
Not exist

5.

If any of the input values is null, the result of an arithmetic expression, would be

0
Null
1
Undefined