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

Author Question: The binary constraint MUST NOT indicates that ________. A) a specific binary relationship must ... (Read 161 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jul 7, 2018
The binary constraint MUST NOT indicates that ________.
 
  A) a specific binary relationship must not be included in a ternary relationship
  B) a table includes values that must not occur in a binary relationship
  C) a table includes values that must not occur in a ternary relationship
  D) a binary relationship includes value combinations that must not occur in a ternary relationship

Question 2

Suppose you have created a data model for an airline based on a variety of forms, reports, user interviews, data sources, etc.
 
  Your client comes forward with a new desired report that includes passenger weights and a relationship between passengers and employees, neither of which is in your E-R diagram. You should ________.A) create a new, separate E-R diagram with just the new information
  B) add the relationship and the weight attribute to the existing data model
  C) add the relationship but not the weight attribute
  D) add the weight attribute but not the relationship


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dunkey

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 7, 2018
Answer to Question 1

D

Answer to Question 2

B


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jul 7, 2018
YES! Correct, THANKS for helping me on my review

  • Member
  • Posts:
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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.

Accompanying Markers in Specific P1 Transductions Accompanying Markers in Specific P1 Transductions
Establishing a caring and trusting relationship helps the client come to terms with a terminal illne Establishing a caring and trusting relationship helps the client come to terms with a terminal illne
Measuring the Specific Gravity of Urine with a Refractometer Measuring the Specific Gravity of Urine with a Refractometer
Specific Gravity of Selected Materials Specific Gravity of Selected Materials
The urinary system: Relationship of the kidneys to the vertebrae The urinary system: Relationship of the kidneys to the vertebrae
The relationship between the Golgi complex and lysosomes The relationship between the Golgi complex and lysosomes
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library