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 207 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
Excellent

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

The relationship between free energy and electron movement along the electron transport chain The relationship between free energy and electron movement along the electron transport chain
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
Blood pressure and blood volume relationship Blood pressure and blood volume relationship
When teenagers live in single-parent homes, a good relationship with grandparents is related to ... When teenagers live in single-parent homes, a good relationship with grandparents is related to ...
Responses Produced by Activation of Specific Opioid Receptors Responses Produced by Activation of Specific Opioid Receptors
The relationship between allelic frequency and genotypic frequency in a population that is in Hardy- The relationship between allelic frequency and genotypic frequency in a population that is in Hardy-
Video: Pores and Ion Channels

For a complete list of videos, visit our video library