Set operations can be applied on any two relations with the same number of attributes.Question 3Select one:TrueFalse
Question
Question 3
Set operations can be applied on any two relations with the same number of attributes.
Select one:
- True
- False
Solution
Break Down the Problem
-
Understanding Set Operations: Set operations like union, intersection, and set difference typically apply to sets (relations) that share the same schema, meaning they have the same number of attributes and compatible types.
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Attributes Comparison: The statement refers to whether set operations can be applied on relations with the same number of attributes.
Relevant Concepts
- Set Operations: Union, Intersection, and Set Difference can only be performed if the relations involved have the same attribute structure (same number of attributes and compatible data types).
Analysis and Detail
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Same Number of Attributes: The key part of this question is whether simply having the same number of attributes is sufficient for set operations to be applied. It is also necessary that the attributes be of the same type and order.
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Implications: If two relations have the same number of attributes but different types or order, set operations cannot be performed.
Verify and Summarize
- Conclusion: Therefore, the statement is not entirely true since having the same number of attributes alone does not guarantee that set operations can be applied.
Final Answer
False
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