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

Author Question: An update anomaly occurs when the entire primary key is not known and the database cannot insert a ... (Read 118 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jul 7, 2018
An update anomaly occurs when the entire primary key is not known and the database cannot insert a new record.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is one of Codd's principles?
 
  A) All data must be numerical
  B) Tables must have no more than 1000 rows
  C) Logical design must match physical design
  D) Logical design must be kept separate from physical design


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 7, 2018
Answer to Question 1

FALSE

Answer to Question 2

D


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jul 7, 2018
Excellent

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Red algae and primary plastid of the supergroup Archaeplastida. Red algae and primary plastid of the supergroup Archaeplastida.
The leaf is usually the primary site of photosynthesis in plants. The leaf is usually the primary site of photosynthesis in plants.
Regions of the Primary Motor Cortex and Associated Axons of the Corpus Callosum Regions of the Primary Motor Cortex and Associated Axons of the Corpus Callosum
Insert the terminals into the relay socket in 30 and 87. Insert the terminals into the relay socket in 30 and 87.
Rub the ears between your thumbs and index fingers. Follow the curves to rub the entire ear, ... Rub the ears between your thumbs and index fingers. Follow the curves to rub the entire ear, ...
How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ... How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ...
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library