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 103 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
Gracias!


nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Excellent

 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

For a complete list of videos, visit our video library