Question: Define candidate key.

Define candidate key.

Step by Step Solution

★★★★★

3.37 Rating (178 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

A candidate key is a column or collection of columns on which all c... View full answer

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

Document Format (1 attachment)

Word file Icon

671-CS-DB (993).docx

120 KBs Word File

Students Have Also Explored These Related Databases Questions!

Q:

Contrast the following terms: a. Normal form; normalization b. Candidate key; primary key c. Partial dependency; transitive dependency d. Composite key; recursive foreign key e. Determinant;...

Q:

What is a candidate key? How does a candidate key differ from a superkey?

Q:

Identify the superkeys, candidate key(s), and the primary key for the following relation instance of the STU-CLASS relation schema. Student Number Student ACCOUNTING STEDRY ANTHROPOLOGY AP150 MWE9 5...

Q:

1. Define functional dependence. 2. Give an example of a column A and a column B such that B is functionally dependent on A. Give an example of a column C and a column D such that D is not...

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:

3. Proceed with formal normalizatio Doctor Prescription of Drug System. n form to show all required steps to normalize the following treating many patients, and may prescribe a list of drugs patient....

Q:

Question 1 10 pts What do you do if a table has no candidate keys? Pick the best answer. Group of answer choices Use any column as primary key Cannot create primary key for this kind of table Add a...

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:

Define the term unique key and non-unique key give an example. (Points 5) Define the terms candidate key and primary key. Explain the difference between a primary key and a candidate key. Explain the...

Q:

Can you please help me with database question: Based on the description in question a, Draw the dependency diagram of Flight -reservation-system system highlighting Partial Dependency, Transitive...

Q:

How can one make a profit form a transaction in light of the bid-ask spread, assuming the spread remains constant?

Q:

The decision to drop a product line should be based on what factors?

Q:

answer this in great detail. be specific becasue the software is picky Please answer showing work in detail. The Michner Corporation is trying to choose between the following two mutually exclusive...

Q:

What does a Content Management System do. 6 ? a. Allows the automation of specific marketing activities. b. Allows the creation, editing, management, and tracking of content on a website. c. It...

Q:

What therapist is performing unlisted modality on 10/17/2021? a. Steven Wilder b. Bridgette McClain c. Saritha Nair d. No therapist has that session TherapyCode Description 90901 92240 92507 92530...

Q:

Who is having self-care/home management therapy? a. Tammy Wilson b. Tobey Short c. Brianna Waggoner d. Isaiah Venable TherapyCode Description 90901 92240 92507 92530 92540 95831 97010 97012 97014...

Q:

What treatment is Ben Odepaul having? a. Paraffin bath b. Knee strapping c. Electrical stimulation d. Hot or cold pack application TherapyCode Description 90901 92240 92507 92530 92540 95831 97010...

Q:

UUU Company has a current dividend of $ 2 . 5 0 . Shareholders require a 1 0 % rate of return. Although the dividend has been growing at a rate of 2 5 % per year in recent years, this growth rate is...

Q:

The interest rate is 5% per year. The stock price of ILG is currently $125 and it pays no dividends. The stock price a year from now will either be $175 or $88. You sell your client a call option on...

Q:

Risk that a financial institution may be unable to transfer their financial claims or assets into cash, is the definition of Liquidity Risk Credit risk Political risk . Interest rate risk . Risk that...