Question: What normal forms are there based on concepts of functional dependencies? please input . What is a superkey A superkey is a combination of columns

What normal forms are there based on concepts of functional dependencies? please input .


What is a superkey


A superkey is a combination of columns that uniquely identifies any row within a relational database management system (RDBMS) table. 


 What is a key please input 4. Below which is not correct? 


A relation Risi 3NF but not in 2NF Every 2NF relation is in INF Every Nation is in 25 Every BCN relations in NF

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

Normal Forms Based on Concepts of Functional Dependencies There are several normal forms based on co... 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

Students Have Also Explored These Related Databases Questions!

Q:

Introduction This research paper mainly focuses on history of evolvement of normalization from a set of relation schemas, along with sequential normalization forms with suitable examples. This paper...

Q:

Do some amendment and enhance the given research paper: Table of Content Abstract..3 Action Research.4 Research Methodology and Design...5 Literature Review: NoSQL Database7 Proposal.7 Iteration 1..8...

Q:

MULTIPLE CHOICE QUESTIONS 1. Nulls, if used improperly, can create problems because they can represent ____. a. a default value b. a known, but missing, attribute value c. zero d. an unsortable value...

Q:

QUESTION 1 Select the correctly written query. SELECT ALL FROM CUSTOMERS WHERE 10243 IS CUSTOMERID PULL * FROM CUSTOMERS WHERE CUSTOMERID = 10243 SELECT * FROM CUSTOMERS WHERE CUSTOMERID = 10243 GET...

Q:

Database Design Problem You have been hired to review the accuracy of the books of Northeast Seasonal Jobs International (NSJI), a job broker. NSJI matches employers whose business is seasonal (like...

Q:

Dear Tutor, Attached please find my assignment. Could you help me? Thanks in advance . Database Design Problem You have been hired to review the accuracy of the books of Northeast Seasonal Jobs...

Q:

Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two samples isolated from the Deepwater Horizon leak in the Gulf of Mexico were...

Q:

My name is Salam Abdulhussein and I need this to be done as soon as possible. Please follow the steps one by one and make sure everything is correct Global Bike, Inc. ERP for Sales / Collection USING...

Q:

Duplication of data or the storing of the same data in more than one place Integrity B. Security C. Redundancy D. Attribute Ans c Structure that can store information about different categories of...

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:

According to this chapter, what employment trends are expected for professionals in the fields of fraud examination and financial forensics? Why?

Q:

A certain accelerometer consists essentially of a box containing a mass-spring system with a known natural frequency of 1760 Hz. The box is rigidly attached to a surface which is moving according to...

Q:

Evaluate the definite integral " by hand" to find the exact solution. Show all work. 0 1 x 2 l n x d x

Q:

Senior Life Co. is an HMO for businesses in the Portland area. The following account balances appear on the balance sheet of Senior Life Co.: Common stock (800,000 shares authorized; 500,000 shares...

Q:

The declaration, record, and payment dates in connection with a cash dividend of $135,000 on a corporation's common stock are January 12, March 13, and April 12. Journalize the entries required on...

Q:

Refer to the scenario described in Problem 10 and the file BlueOrRed. Partition the data into training (50 percent), validation (30 percent), and test (20 percent) sets. Use logistic regression to...

Q:

Meg OByte wants to buy a new computer for her business for Internet access on a cable modem. The computer system cost is $5,100. The cable company charges $200 (including the cable modem) for...

Q:

Arthur Doyle is a currency trader for Baker Street, a private investment house in London. Baker Street's clients are a collection of wealthy private investors who, with a minimum stake of 250,000...

Q:

Ability tests measure job applicant's performance on actual job tasks.TrueFalse

Q:

Match each of the key terms above with the definition that best fits it. Cloud computing ____The practice of turning over responsibility for some or all of an organizations information systems...

Q:

Match each of the key terms with the definition that best fits it. ____________ Technologies that enable the breaking of long-held business rules that inhibit organizations from making radical...

Q:

Match each of the key terms above to the definition that best fits it. Natural language interaction ____ A method by which users interact with information systems. ____ A humancomputer interaction...

Q:

IBM Inc. is going to award a contract for fine-line pens to be used nationally in its offices. Two suppliers, Bic and Pilot, have submitted bids. To determine the preference of office employees,...

Q:

The Citrus Council of America wants to determine whether consumers prefer plain orange juice or juice with some orange pulp in it. A random sample of 212 consumers was selected. Each member of the...

Q:

Refer to the Baseball 2012 data, which report information on the 30 Major League Baseball teams for the 2012 season. Set up a variable that divides the teams into two groups, those that had a winning...