Author Question: A(n) ________ is a working demonstration of selected portions of the future system. Fill in the ... (Read 101 times)

notis

  • Hero Member
  • *****
  • Posts: 596
A(n) ________ is a working demonstration of selected portions of the future system.
 
  Fill in the blank(s) with correct word

Question 2

What are the basic steps of the normalization process?
 
  What will be an ideal response?



krakiolit

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

prototype

Answer to Question 2

Before starting the normalization process, the relation must be in first normal form, which means that it meets the basic requirements of being a relation. The first step of the normalization process is to identify all the candidate keys in the relation. The second step is to identify all the functional dependencies in the relation. Third, check to see if all the identified determinants are candidate keys. If all determinants are candidate keys, the relation is well-formed and nothing more needs to be done. On the other hand, if any of the determinants is not a candidate key, the relation is not well-formed, and it is necessary to: (1 ) place the columns of that functional dependency into a new relation, (2 ) make the determinant of that functional dependency the primary key of the new relation, (3 ) leave a copy of the determinant in the original relation as a foreign key, and (4 ) create a referential integrity constraint between the original relation and the new relation. This process should be repeated for every relation until every determinant in a relation is a candidate key of that relation.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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.

For a complete list of videos, visit our video library