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5] FD1-> {student,language guide FD2-> {guide)-> language
For the above functional dependencies, give appropriate reasons if it is in BCNF form or not?
For the above functional dependencies, give appropriate reasons if it is in BCNF form or not?
Most Upvoted Answer
5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above...
Explanation:
1. Decomposition into FD1 and FD2:
- FD1: {student, language guide}
- FD2: {guide} -> {language}
2. Checking for BCNF:
- A relation is in BCNF if for every non-trivial functional dependency X -> Y, X is a superkey.
3. Analysis:
- FD1: {student, language guide}
- {student} is not a superkey as {student} does not uniquely determine all attributes in the relation.
- Violation of BCNF as {student} is not a superkey.
- FD2: {guide} -> {language}
- {guide} is a superkey as it uniquely determines {language}.
- Satisfies BCNF as {guide} is a superkey.
4. Conclusion:
- The given functional dependencies are not in BCNF form.
- FD1 violates BCNF as {student} is not a superkey.
- FD2 satisfies BCNF as {guide} is a superkey.
1. Decomposition into FD1 and FD2:
- FD1: {student, language guide}
- FD2: {guide} -> {language}
2. Checking for BCNF:
- A relation is in BCNF if for every non-trivial functional dependency X -> Y, X is a superkey.
3. Analysis:
- FD1: {student, language guide}
- {student} is not a superkey as {student} does not uniquely determine all attributes in the relation.
- Violation of BCNF as {student} is not a superkey.
- FD2: {guide} -> {language}
- {guide} is a superkey as it uniquely determines {language}.
- Satisfies BCNF as {guide} is a superkey.
4. Conclusion:
- The given functional dependencies are not in BCNF form.
- FD1 violates BCNF as {student} is not a superkey.
- FD2 satisfies BCNF as {guide} is a superkey.
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5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not?
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5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not? for GRE 2024 is part of GRE preparation. The Question and answers have been prepared according to the GRE exam syllabus. Information about 5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not? covers all topics & solutions for GRE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not?.
5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not? for GRE 2024 is part of GRE preparation. The Question and answers have been prepared according to the GRE exam syllabus. Information about 5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not? covers all topics & solutions for GRE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 5] FD1-> {student,language guide FD2-> {guide)-> languageFor the above functional dependencies, give appropriate reasons if it is in BCNF form or not?.
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