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 171 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
Thanks for the timely response, appreciate it

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19 Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
Tangential flow filtration model Tangential flow filtration model
Schematic of a mitochondrion and Computer model generated from electron tomograms of a mitochondrion Schematic of a mitochondrion and Computer model generated from electron tomograms of a mitochondrion
A model for the RuvA-RuvB-Holliday junction structure A model for the RuvA-RuvB-Holliday junction structure
The Solow Model Incorporating Population Growth The Solow Model Incorporating Population Growth
Three-Box Model Three-Box Model
Video: Muscular System Animation

For a complete list of videos, visit our video library