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

Author Question: Which of the following is true about a relation? A) The order of the columns in a relation must ... (Read 65 times)

abarnes

  • Hero Member
  • *****
  • Posts: 556
Which of the following is true about a relation?
 
  A) The order of the columns in a relation must go from largest to smallest.
  B) All entries in any column must be of the same kind.
  C) A relation may have duplicate column names.
  D) A relation may have duplicate rows.
  E) A relation may have multiple names.

Question 2

SQL views are constructed from:
 
  A) CREATE statements.
  B) INSERT statements.
  C) UPDATE statements.
  D) SELECT statements.
  E) VIEW statements.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ryhom

  • Sr. Member
  • ****
  • Posts: 366
Answer to Question 1

B

Answer to Question 2

D




abarnes

  • Member
  • Posts: 556
Reply 2 on: Jul 7, 2018
Excellent


dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

For a complete list of videos, visit our video library