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Oracle IS NULL and IS NOT NULL MCQs
Oracle IS NULL and IS NOT NULL MCQs: This section contains multiple-choice questions and answers on IS NULL and IS NOT NULL in Oracle.
Submitted by Anushree Goswami, on June 27, 2022
1. ____ is used by Oracle to check whether a value is not null.
- IS NULL
- IS NOT NULL
- Both A and B
- None of the above
Answer: B) IS NOT NULL
Explanation:
"IS NOT NULL" is used by Oracle to check whether a value is not null.
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2. Oracle uses IS NOT NULL when it is ____ data.
- Selecting
- Inserting
- Updating
- All of the above
Answer: D) All of the above
Explanation:
Oracle uses IS NOT NULL when it is selecting data, inserting data, updating data, and deleting data.
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3. What is the syntax of Oracle IS NOT NULL?
- Expression IS NULL
- Expression IS NOT NULL
- Expression NOT NULL IS
- IS Expression NOT NULL
Answer: B) Expression IS NOT NULL
Explanation:
The syntax of Oracle IS NOT NULL is Expression: "IS NOT NULL".
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4. What is the parameter in the syntax of Oracle IS NOT NULL?
- Expressions
- Conditions
- Values
- None
Answer: A) Expressions
Explanation:
The parameter in the syntax of Oracle IS NOT NULL is Expressions.
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5. Any ____ can be expressed as an expression to check if it is not null.
- Column name
- Value
- Both A and B
- None of the above
Answer: C) Both A and B
Explanation:
Any column name or value can be expressed as an expression to check if it is not null.
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6. A ____ value is returned in IS NOT NULL.
- True
- False
Answer: A) True
Explanation:
A true value is returned in IS NOT NULL.
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7. What is the syntax of Oracle NULL?
- Expression IS NULL
- IS Expression NULL
- NULL IS Expression
- IS NULL Expression
Answer: A) Expression IS NULL
Explanation:
The syntax of Oracle NULL is Expression IS NULL.
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8. The condition returns ____ in NULL.
- True
- False
Answer: B) False
Explanation:
The condition returns false in NULL.
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