This topic contains a solution. Click here to go to the answer

Author Question: A processing unit is an entity that applies the logical rules of data to the information system. ... (Read 86 times)

yoroshambo

  • Hero Member
  • *****
  • Posts: 566
A processing unit is an entity that applies the logical rules of data to the information system.
 
  Indicate whether the statement is true or false

Question 2

Define entity integrity.
 
  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

hugthug12

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

FALSE

Answer to Question 2

Entity integrity is assured by the primary key: one, and only one, entity within a table can be identified by a specific value (or combination of values) in the primary key. Inter-table integrity is called referential integrity and is implemented by enforcing the constraints of foreign keys. Dependency between tables, established through foreign keys, is bidirectional and the designer can control the behavior of referential integrity by setting cascading rules.




yoroshambo

  • Member
  • Posts: 566
Reply 2 on: Jul 7, 2018
Great answer, keep it coming :)


cpetit11

  • Member
  • Posts: 321
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

For a complete list of videos, visit our video library