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

Author Question: In a database, columns are also called ________. A) records B) tables C) files D) ... (Read 160 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
on: Jul 7, 2018
In a database, columns are also called ________.
 
  A) records
  B) tables
  C) files
  D) fields

Question 2

Distinguish between the physical description and the semantic description of an attribute domain.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

eliasc0401

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 7, 2018
Answer to Question 1

D

Answer to Question 2

The physical description of an attribute defines the data type, data length, and other data value constraints, and thus indicates specifications for the storage and processing of the attribute. The semantic description of the attribute indicates the logical meaning of the attribute in the users' environment, and thus the semantic description differentiates between attributes having the same physical description.


tingc95

  • Member
  • Posts: 556
Reply 2 on: Jul 7, 2018
Excellent

nguyenhoanhat

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Platycnemididae are a family of damselfly called white-legged damselflies. Platycnemididae are a family of damselfly called white-legged damselflies.
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
A typical office file room. (Paper medical records are rapidly being replaced by electronic ... A typical office file room. (Paper medical records are rapidly being replaced by electronic ...
Five layers or sheaths called koshas in Ayurvedic philosophy. Five layers or sheaths called koshas in Ayurvedic philosophy.
Video: Isovolumetric VC, Ventricular ejection, Isovolumetric & Passive ventricular filling

For a complete list of videos, visit our video library