Database - Data Modeling
32. Which database level is closest to the users?
- Option : A
- Explanation :
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33. The result of the UNION operation between R1 and R2 is a relation that includes
- Option : C
- Explanation :
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34. A set of possible data values is called
- Option : D
- Explanation :
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35. Which of the operations constitute a basic set of operations for manipulating relational data?
- Option : C
- Explanation :
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