Question: In a given relation R , if an attribute A uniquely defines all other attributes, then the attribute A is a key attribute which is

In a given relation R, if an attribute A uniquely defines all other attributes, then the attribute A is a key attribute which is also known as the.
Candidate key
Join key
Functional key
Foreign key

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

Throughout this part, all the questions are by default based on the relation instance provided below, which stores information of international students in a university. college D departID stuNo ENG...

Q:

Database Management Systems Question 1: Normalization Consider a relation R with six attributes ABCDEF where AB is a composite primary key for R. Assume R has the following functional dependencies (R...

Q:

Database Management Systems Question 1: Normalization Consider a relation R with six attributes ABCDEF where AB is a composite primary key for R. Assume R has the following functional dependencies (R...

Q:

the following relational algebra questions based on tables S1 and S2 (below) Question 1 What is the output of S1 S2 ? The row identified by sid 22 The rows identified by sid 31 and 58 The row...

Q:

Lesson 12 Quiz (Show/Explain all Work) IST 230 Relations on Sets, Databases 1. Let A = {0, 1, 2, 3, 4, 5, 6, 7, 8} and B = {1, 2, 3, 4, 5, 6, 7, 8}. Now let R be a binary relation R from A to B such...

Q:

Please give genuine thoughts and feedback for each analysis 1. A partial dependency occurs when part of a candidate key is functionally dependent upon a non-prime attribute. Partial Dependency is...

Q:

The tuple relational calculus {SP(S)} is the set of all tuples such that P(S) is neither true nor false. such that P(S) is true. such that P(S) is false. such that S is s subset of P in S Given two...

Q:

Predictive text entry systems are familiar on touch screens and mobile phones. This question asks you to consider how the same principles might be used in a programming editor for creating Java code....

Q:

//Database Management //Answer part 1,2,3,4,5,6 //Part 1 Consider a relation R with attributes ABCDE. You are given the following dependencies B -> C, D -> C, AE -> D. Attribute closure of A?...

Q:

15 Given the following relation: Supplier( Supplier D, name, city, partNumber, partDescription) Where Supplier D is the primary key, and partNumber-> partDescription Which of the following...

Q:

Beginning in 2012, Congress increased the top estate and gift tax rate to 40 percent and permanently increased the unified credit with inflation indexing. What (if any) changes do you think Congress...

Q:

What is the nature and purpose of a letter of representations? Comment on the quality or strength of the audit evidence yielded by a letter of representations.

Q:

The value of a company in the market is a result of: its ROE

Q:

Question 1 Graystone bonds have a maturity value of RM100. The bonds carry a coupon rate of 10 percent. Interest is paid semi-annually. The bonds will mature in nine years. If the current market...

Q:

Jonas Doney has requested that you send him a proposal for a brochure that explains the cultural and economic climate of your state. The brochure will be sent to representatives of industries...

Q:

Should you ever give unsolicited constructive feedback? Why or why not? (Objective 3)

Q:

What role does the youviewpoint play in giving constructive feedback? (Objective 3)