« previous next »

Author Question: Discuss the role of backup and test databases in database redesign. What will be an ideal ... (Read 82 times)

bio_gurl

  • Hero Member
  • *****
  • Posts: 524
on: Jul 7, 2018
Discuss the role of backup and test databases in database redesign.
 
  What will be an ideal response?

Question 2

In a linked list, the sequence field holds the address of the next record in the logical sequence.
 
  Indicate whether the statement is true or false


matt95

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 7, 2018
Answer to Question 1

Typically, there are at least three different copies of the database schema used in database redesign: (1 ) a small test database for initial testing, (2 ) a large or full copy test database for further testing, and (3 ) the operational database itself. There must be a process to restore the test databases to their original state during the testing process so that tests can be rerun as needed. If it is not possible to use a full copy of a very large operational database for testing, an appropriate large scale test version must be created and used.

Answer to Question 2

FALSE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter. Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter.
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
The obturator test The obturator test
Performing the whisper test Performing the whisper test
Discuss the trend you notice about enbridge inc Discuss the trend you notice about enbridge inc
The functional role of pRB. The pRB protein product of RB1 The functional role of pRB. The pRB protein product of RB1
Video: Automated external defibrillator (AED)

For a complete list of videos, visit our video library