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

Author Question: Which of the following is true about a relation? A) The order of the columns in a relation must ... (Read 67 times)

abarnes

  • Hero Member
  • *****
  • Posts: 556
on: Jul 7, 2018
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
Reply #1 on: Jul 7, 2018
Answer to Question 1

B

Answer to Question 2

D


abarnes

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

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

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.

A true albino squirrel. Note the pink eyes. A true albino squirrel. Note the pink eyes.
The F integration site determines the order of gene transfer in Hfrs The F integration site determines the order of gene transfer in Hfrs
The Primate order displays a diversity of ways of moving around. The Primate order displays a diversity of ways of moving around.
Inverse Relation Between IQ and Disease. Could this explain the Flynn effect? Inverse Relation Between IQ and Disease. Could this explain the Flynn effect?
The human hypothalamus (in color) in relation to the optic chiasm and the pituitary gland. The human hypothalamus (in color) in relation to the optic chiasm and the pituitary gland.
The order of gene transfer in four Hfr strains The order of gene transfer in four Hfr strains
Video: Methods of carbon dioxide transport - carbaminohemoglobin and bicarbonate ions

For a complete list of videos, visit our video library