« previous next »

Author Question: How is maximum cardinality expressed in crow's foot E-R diagrams? What will be an ideal ... (Read 58 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 7, 2018
How is maximum cardinality expressed in crow's foot E-R diagrams?
 
  What will be an ideal response?

Question 2

In a common form of RFM analysis, customers with an R score of 5 are in the 20 of customers who have the most recent orders.
 
  Indicate whether the statement is true or false


diana chang

  • Sr. Member
  • ****
  • Posts: 288
Reply #1 on: Jul 7, 2018
Answer to Question 1

The crow's foot E-R diagram notation uses a hash mark to indicate a maximum cardinality of one and a crow's foot to indicate a maximum cardinality of many. Each symbol is placed immediately next to the rectangle symbolizing an entity. These symbols are combined in various forms to signify 1:1, 1:N and N:M relationships.

Answer to Question 2

FALSE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Toe Abnormalities: Syndactyly in the 2nd and 3rd Metatarsals of the Right Foot Toe Abnormalities: Syndactyly in the 2nd and 3rd Metatarsals of the Right Foot
Eversion and inversion of the foot. Eversion and inversion of the foot.
To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad
Sheryl Crow - If It Makes You Happy Sheryl Crow - If It Makes You Happy
How to find the maximum and minimum of a quadratic relation How to find the maximum and minimum of a quadratic relation
Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ... Calculus help: Find a cubic function f (x) = ax3 +bx2 +cx+d that has a local maximum value of 3 ...
Video: Protein digestion - stomach & small intestine

For a complete list of videos, visit our video library