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Set Operations MCQ (Multiple Choice Questions) PDF Download
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The Set Operations Multiple Choice Questions (MCQ Quiz) with Answers PDF (Set Operations MCQ PDF e-Book) download to practice Database Systems Tests. Learn Introduction to SQL Multiple Choice Questions and Answers (MCQs), Set Operations quiz answers PDF to learn computer science courses. The Set Operations MCQ App Download: Free learning app for additional basic operations, aggregate functions, nested subqueries test prep for online degrees.
The MCQ: SQL uses the special keyword in a predicate to test for a null value; "Set Operations" App Download (Free) with answers: Escape; Unknown; Known; Null; to learn computer science courses. Practice Set Operations Quiz Questions, download Google e-Book (Free Sample) for online computer engineering programs.
Set Operations MCQs: Questions and Answers PDF Download
If any of the input values is null, the result of an arithmetic expression, would be
- 0
- Null
- 1
- Undefined
SQL uses the special keyword in a predicate to test for a null value
- Escape
- Unknown
- Known
- Null
The union operation automatically eliminates duplicates, unlike the
- Select clause
- From clause
- Define clause
- Where clause
Duplicate tuples must be eliminated, when the query uses the clause
- Select Clause
- Where Distinct Clause
- Select distinct Clause
- From Distinct Clause
The SQL set operations include
- Union
- Intersect
- Except
- All of the Above
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