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 215 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
Gracias!

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Some male birds and mammals congregate in communal courting grounds called leks. Some male birds and mammals congregate in communal courting grounds called leks.
Files come in many different shapes and sizes. Never use a file without a handle. Files come in many different shapes and sizes. Never use a file without a handle.
A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ... A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ...
A thin cleft, called the synapse, separates one cell from another. A thin cleft, called the synapse, separates one cell from another.
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin
The Equinox Fabrication Plant suffered a fire incident in August, and most of the records for ... The Equinox Fabrication Plant suffered a fire incident in August, and most of the records for ...
Video: Mendel's pea plant, Pisum sativum experimental

For a complete list of videos, visit our video library