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

Author Question: Recovering a database via rollback involves ________. A) restoring the database from the save and ... (Read 138 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
Recovering a database via rollback involves ________.
 
  A) restoring the database from the save and reprocessing all the transactions since the save
  B) restoring the database from the save and reapplying all the changes made by transactions since the save
  C) undoing the changes made by erroneous or partially processed transactions and restarting the valid transactions that were in process at the time of the failure
  D) re-creating the database by re-entering all of the data from the beginning and, then reprocessing all of the transactions

Question 2

In IDEF1X, extended E-R model N:M relationships are called ________.
 
  A) nonidentifying connection relationships
  B) identifying connection relationships
  C) nonspecific relationships
  D) category clusters



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ashely1112

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

C

Answer to Question 2

C




JGIBBSON

  • Member
  • Posts: 538
Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it


peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

For a complete list of videos, visit our video library