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

Author Question: Briefly describe Bradley's three-level database model. What will be an ideal ... (Read 69 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
on: Jul 7, 2018
Briefly describe Bradley's three-level database model.
 
  What will be an ideal response?

Question 2

In a three-tiered architecture, middleware is housed in:
 
  A)
 
  Tier 0.
  B)
 
  Tier 1.
  C)
 
  Tier 2.
  D)
 
  Tier 3.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dajones82

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 7, 2018
Answer to Question 1

1. Level 1 is the external, conceptual, or local level. This level is not concerned with how the data is physically stored or what data is used by other applications.
2. Level 2 is the logical or enterprise data level. It encompasses all of the organization's relevant data under the control of the data administrators.
3. Level 3 is the physical or storage level. It specifies the way the data is physically stored.

Answer to Question 2

C


Brittanyd9008

  • Member
  • Posts: 500
Reply 2 on: Jul 7, 2018
Excellent

hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

A model of the 70S ribosome based upon early structural data A model of the 70S ribosome based upon early structural data
Model of cI repressor binding to DNA Model of cI repressor binding to DNA
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Model for ecosystems on land Model for ecosystems on land
The sliding-filament model The sliding-filament model
Model of the CFTR protein Model of the CFTR protein
Video: Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library