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

Author Question: A key that consists of two or more attributes combined to make a unique value is called: A) ... (Read 87 times)

abc

  • Hero Member
  • *****
  • Posts: 543
on: Jul 7, 2018
A key that consists of two or more attributes combined to make a unique value is called:
 
  A) Candidate key
  B) Natural key
  C) Surrogate key
  D) Composite key

Question 2

Which of the following is the term for an anomaly in which you cannot enter data because other data is required?
 
  A) Insertion anomaly
  B) Update anomaly
  C) Deletion anomaly
  D) None of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

helenmarkerine

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 7, 2018
Answer to Question 1

D

Answer to Question 2

A


abc

  • Member
  • Posts: 543
Reply 2 on: Jul 7, 2018
:D TYSM

laurnthompson

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

« previous next »
 

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Mechanism of transport by a transporter, also called a carrier. Mechanism of transport by a transporter, also called a carrier.
Cnidarians have specialized stinging cells called cnidocytes Cnidarians have specialized stinging cells called cnidocytes
A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ... A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ...
Severe arthritis can make everyday activities, like writing, typing, and handling objects Severe arthritis can make everyday activities, like writing, typing, and handling objects
A polysome consists of an mRNA molecule loaded with many ribosomes, all engaged in translation. A polysome consists of an mRNA molecule loaded with many ribosomes, all engaged in translation.
The eukaryotic cell cycle consists of two parts: (1) interphase and (2) mitosis followed by cytokine The eukaryotic cell cycle consists of two parts: (1) interphase and (2) mitosis followed by cytokine
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library