« previous next »

Author Question: What type of functional dependency does NOT exist in the table FLIGHT? A) Trivial B) Full key ... (Read 81 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
on: Jul 7, 2018
What type of functional dependency does NOT exist in the table FLIGHT?
 
  A) Trivial
  B) Full key
  C) Partial
  D) Transitive

Question 2

When does a circular foreign key dependency occur?
 
  What will be an ideal response?


HandsomeMarc

  • Sr. Member
  • ****
  • Posts: 360
Reply #1 on: Jul 7, 2018
Answer to Question 1

D

Answer to Question 2

Circular foreign key dependency occurs when Table A has a foreign key referring to the primary key of Table B, and Table B has a foreign key referring to the primary key of Table A.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 7, 2018
TY


HandsomeMarc

  • Sr. Member
  • ****
  • Posts: 360
Reply #3 on: Jul 7, 2018
Happy to Help


« previous next »
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Table 6.1 illustrates the main regime types and their differences. It breaks the regimes into four Table 6.1 illustrates the main regime types and their differences. It breaks the regimes into four
Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
Mobilize the rib cage. Redrape to cover the chest, and stand to one side of the table. Place your ... Mobilize the rib cage. Redrape to cover the chest, and stand to one side of the table. Place your ...
Is this glass half empty or half full? Is this glass half empty or half full?
Use the information in the above table to establish a Born-Haber cycle to determine the ... Use the information in the above table to establish a Born-Haber cycle to determine the ...
table table
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

For a complete list of videos, visit our video library