Question: QUESTION 79 For the given relation schema, EMPLOYEE(SSN, PNUMBER, NAME, PNAME) Set of functional dependencies: SSN ? NAME PNUMBER ? PNAME Key: SSN, PNUMBER What
QUESTION 79
For the given relation schema,
EMPLOYEE(SSN, PNUMBER, NAME, PNAME)
Set of functional dependencies: SSN ? NAME
PNUMBER ? PNAME
Key: SSN, PNUMBER
What is the highest normal form for the given relation schema EMPLOYEE?
|
| a. | The first normal form (1NF). |
|
| b. | The second normal form (2NF). |
|
| c. | The third normal form (3NF). |
|
| d. | The Boyce-Codd normal form (BCNF). |
For the given relation schema,
EMPLOYEE(SSN, NAME, DNUMBER, DMGRSSN)
Set of functional dependencies: SSN ? NAME, DNUMBER
DNUMBER ? DMGRSSN
Key: SSN
Which attribute(s) is(are) the prime attribute in the relation schema?
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| a. | NAME,SSN |
|
| b. | SSN |
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| c. | DMGRSSN |
|
| d. | DNUMBER |
QUESTION 80
For the given relation schema,
EMPLOYEE(SSN, NAME, DNUMBER, DMGRSSN)
Set of functional dependencies: SSN ? NAME, DNUMBER
DNUMBER ? DMGRSSN
Key: SSN
Which attribute(s) is(are) the non-prime attribute in the relation schema?
|
| a. | SSN |
|
| b. | NAME |
|
| c. | DMGRSSN |
|
| d. | DNUMBER |
QUESTION 81
For the given relation schema,
EMPLOYEE(SSN, NAME, DNUMBER, DMGRSSN)
Set of functional dependencies: SSN ? NAME, DNUMBER
DNUMBER ? DMGRSSN
Key: SSN
What is the highest normal form for the given relation schema EMPLOYEE?
|
| a. | The first normal form (1NF). |
|
| b. | The Boyce-Codd normal form (BCNF). |
|
| c. | The third normal form (3NF). |
|
| d. | The second normal form (2NF). |
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