This topic contains a solution. Click here to go to the answer

Author Question: To support rollforward and rollback recovery, transactions must be written to a script before they ... (Read 105 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
To support rollforward and rollback recovery, transactions must be written to a script before they are applied to the database.
 
  Indicate whether the statement is true or false

Question 2

What are inconsistent values, and why are they a problem?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

memslove

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

FALSE

Answer to Question 2

Inconsistent values are different forms of the same data value. For example, in a database of dog owners and their dogs, we might find a border collie listed as b. collie, collie, border, and border collie. This will create query problems. For example, a query for border collie will not return the dogs listed in the other formats. Or, alternatively, we would have to write a query that includes all possible (or at least known) variations of border collie, and that would be a real pain.




ss2343

  • Member
  • Posts: 548
Reply 2 on: Jul 7, 2018
Gracias!


diana chang

  • Member
  • Posts: 288
Reply 3 on: Yesterday
Excellent

 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

For a complete list of videos, visit our video library