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

Author Question: Give a definition of entity integrity constraint. What will be an ideal ... (Read 96 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
Give a definition of entity integrity constraint.
 
  What will be an ideal response?

Question 2

An advantage of PERT diagrams is the easy determination of slack time.
 
  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

morganmarie791

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

In a relational table, no primary key column can have null (empty) values.

Answer to Question 2

TRUE




neverstopbelieb

  • Member
  • Posts: 534
Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it


robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

For a complete list of videos, visit our video library