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 157 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
Gracias!


Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

For a complete list of videos, visit our video library