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

Author Question: Double-ended arrows are used to represent data flowing in both directions. Indicate whether the ... (Read 175 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 7, 2018
Double-ended arrows are used to represent data flowing in both directions.
 
  Indicate whether the statement is true or false

Question 2

An order number is a good example of a candidate key.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yeungji

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 7, 2018
Answer to Question 1

FALSE
Explanation: Although data may flow in both directions, it is usually indicated by two separate arrows.
CL

Answer to Question 2

TRUE
Explanation: An order number is a unique characteristic that distinguishes entity instances.
CL


roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Jul 7, 2018
Thank you


yeungji

  • Sr. Member
  • ****
  • Posts: 319
Reply #3 on: Jul 7, 2018
No problemo


« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

A double bond between two oxygen atoms A double bond between two oxygen atoms
This Russian godfather is leaving a Moscow court just after he was acquitted of a double murder. Do ... This Russian godfather is leaving a Moscow court just after he was acquitted of a double murder. Do ...
Material safety data sheets (MSDS), now called safety data sheets (SDS), should be readily available ... Material safety data sheets (MSDS), now called safety data sheets (SDS), should be readily available ...
Business Intelligence, Analytics, and Data Science: A Managerial Perspective, 4th Edition Business Intelligence, Analytics, and Data Science: A Managerial Perspective, 4th Edition
Prometaphase Chromosomes are clearly double structures Prometaphase Chromosomes are clearly double structures
Linkage Data from 39 Families with Cystic Fibrosis Linkage Data from 39 Families with Cystic Fibrosis
Video: HIV replication/ Replication cycle of HIV

For a complete list of videos, visit our video library