This topic contains a solution. Click here to go to the answer

Author Question: A relation corresponds to a computer file. Indicate whether the statement is true or ... (Read 111 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
A relation corresponds to a computer file.
 
  Indicate whether the statement is true or false

Question 2

When displaying tables and lists, you should break long sequences of alphanumeric data into small groups of three to four characters each.
 
  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

milbourne11

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

FALSE
Explanation: Each relation (or table) consists of a set of named columns and an arbitrary number of unnamed rows. Each column in a relation corresponds to an attribute of that relation. Each row of a relation corresponds to a record that contains data values for an entity.
CL

Answer to Question 2

TRUE
Explanation: This is a best practices guideline for formatting numeric, textual, and alphanumeric data.
CL




kellyjaisingh

  • Member
  • Posts: 540
Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it


sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Excellent

 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

For a complete list of videos, visit our video library