What is the key for table t

Assignment Help Computer Engineering

Reference no: EM1331006

Given the following table T and the set of functional dependencies F:

T
A B C D
a1 b1 c1 d1
a1 b1 c2 d2
a2 b1 c1 d3
a2 b1 c3 d4
a2 b1 c4 d5

F = {A → B, C → B, D → ABC, AC → D}

a. What is the key for table T?
b. What is the highest normal form for table T? Please explain.

c. Given the following records or rows:
(a5, b6, c7, d8)
(a2, b2, c1, d8)
(a3, b1, c4, d3)
(a1, b1, c2, d5)

Please indicate which record can be added into table T without violating any of the functional dependencies in F. If the record or row cannot be legally added, please indicate which functional dependency is violated.

Reference no: EM1331006

Questions Cloud

Show the factors influencing employee issues : Show the factors influencing employee issues: including the right to work, employment at will, due process and employee participation, health and safety standards, family responsibilities

Write down a class named testscores : Write down a class named TestScores. The class constructor should accept an array of test scores as its argument. The class should have a process that returns the average of the test scores.

Calculation of base salaries : What factors influence the calculation of base salaries and How is the Human Resources department involved in salary determinations?

Identifying business methods to resolve issues : Intersect Investments executives are pointing fingers because of internal problems. Identify business methods that would help resolve their issues.

What is the key for table t : What is the highest normal form for table T explain.

Where project management software is especially beneficial : Software Pluses and Minuses - Check three areas where project management software is especially beneficial and how it is beneficial.

Response rates in personal interviews : How environmental factors affect response rates in personal interviews?

Explain how do you balance human suffering : Explain how do you balance human suffering with the economic realities.

Advancement corporation''s staffing dilemma : Explain the greatest opportunity and the greatest challenge that you will face in relation to planning and executing an ongoing solution to Advancement Corporation's staffing dilemma?

User Account

All Pages