This topic contains a solution. Click here to go to the answer

Author Question: In a relation, the sequence of columns can be interchanged without changing the meaning or use of ... (Read 69 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
In a relation, the sequence of columns can be interchanged without changing the meaning or use of the ________.
 
  A) Relation
  B) Attribute
  C) Row
  D) Primary key

Question 2

A(n) ________ is an attribute that may take on more than one value for each entity instance.
 
  A) Multi-valued attribute
  B) Single-valued attribute
  C) Identifier
  D) Candidate key



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tuwy

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

A

Answer to Question 2

A




Medesa

  • Member
  • Posts: 507
Reply 2 on: Jul 7, 2018
Wow, this really help


samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

For a complete list of videos, visit our video library