This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In a relation, the sequence of columns can be interchanged without changing the meaning or use of ... (Read 20 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
on: Jul 7, 2018
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
Reply #1 on: Jul 7, 2018
Answer to Question 1

A

Answer to Question 2

A


Medesa

  • Member
  • Posts: 507
Reply 2 on: Jul 7, 2018
Excellent

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

The conduction system of the heart; traces the path of the electrical impulse that stimulates the he The conduction system of the heart; traces the path of the electrical impulse that stimulates the he
Effect of changing a set point for hypothalamic values Effect of changing a set point for hypothalamic values
Burial caves from Mangaia, Cook Islands, document the changing patterns of mortuary ritual. Burial caves from Mangaia, Cook Islands, document the changing patterns of mortuary ritual.
Suggested sequence for palpating lymph nodes Suggested sequence for palpating lymph nodes
Posterior view of midbrain in relation to brain stem Posterior view of midbrain in relation to brain stem
BLAST results showing a 280-base sequence of a chromosome 12 contig from rats BLAST results showing a 280-base sequence of a chromosome 12 contig from rats
Video: TRH/TSH/Thyroid hormone

For a complete list of videos, visit our video library