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 176 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?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Nitrogen fluxes in Sycamore Creek, Arizona (data from Grimm 1988). Nitrogen fluxes in Sycamore Creek, Arizona (data from Grimm 1988).
Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa
Summary of US Census Data Summary of US Census Data
4.1 Age changes in total IQ based on cross-sectional data (lower line) and longitudinal data ... 4.1 Age changes in total IQ based on cross-sectional data (lower line) and longitudinal data ...
Areas of sclerosis (see arrows) in the white matter of a patient with MS. Areas of sclerosis (see arrows) in the white matter of a patient with MS.
Satellite data on primary productivity in the equatorial Pacific Ocean Satellite data on primary productivity in the equatorial Pacific Ocean
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library