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

Author Question: A weak entity is an entity that cannot exist in the database without (and is logically dependent ... (Read 287 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
on: Jul 7, 2018
A weak entity is an entity that cannot exist in the database without (and is logically dependent upon) another type of entity also existing in the database.
 
  Indicate whether the statement is true or false

Question 2

The INTERSECT of two relations A and B consists of all rows that are in relation B but are not in relation A.
 
  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

Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

FALSE


c0205847

  • Member
  • Posts: 531
Reply 2 on: Jul 7, 2018
:D TYSM

upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

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

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Comparison of the titration curves of three weak acids Comparison of the titration curves of three weak acids
The age-dependent curve of salivary progresterone levels in three populations. The age-dependent curve of salivary progresterone levels in three populations.
Effect of pH on drug absorption: (a) A weak acid such as aspirin (ASA) is in a nonionized form in an ... Effect of pH on drug absorption: (a) A weak acid such as aspirin (ASA) is in a nonionized form in an ...
Effect of pH on drug absorption. (a) A weak acid such as aspirin (ASA) is in a nonionized form in an ... Effect of pH on drug absorption. (a) A weak acid such as aspirin (ASA) is in a nonionized form in an ...
pH Scale - Weak Acid and their conjugate Base pH Scale - Weak Acid and their conjugate Base
Proposed mechanism of glutamine-dependent amidotransferases Proposed mechanism of glutamine-dependent amidotransferases
Video: Structures that affect circulation - heart and systolic/diastolic BP

For a complete list of videos, visit our video library