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

Author Question: Explain how NULLS are treated by Aggregate functions. Provide examples. What will be an ideal ... (Read 13 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Jul 7, 2018
Explain how NULLS are treated by Aggregate functions. Provide examples.
 
  What will be an ideal response?

Question 2

An operation such as login, read, perform, I/O or execute that is performed by the subject on or with an object is the _________ audit record field.
 
  A. resource-usage  B. subject
 
  C. object  D. action


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akpaschal

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 7, 2018
Answer to Question 1

Aggregate functions ignore nulls. They are not included in the SUM, MAX, MIN, or AVG. This probably has the most effect on averages. An average consists of the SUM of the values divided by the number of rows. Rows with NULLS are not counted, which effects the value of the average.

Answer to Question 2

D


justinmsk

  • Member
  • Posts: 524
Reply 2 on: Jul 7, 2018
Gracias!

peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Examples of the results of sexual selection, a type of natural selection. Examples of the results of sexual selection, a type of natural selection.
Examples of cell types derived from ectoderm, mesoderm, and endoderm. Examples of cell types derived from ectoderm, mesoderm, and endoderm.
Examples of intervention and associated nursing activities Examples of intervention and associated nursing activities
Cranial Nerves and Functions Cranial Nerves and Functions
Food Labels Provide Nutrient Content Information Food Labels Provide Nutrient Content Information
Domain of Functions Domain of Functions
Video: Egg and Sperm Formations in Animals Animation

For a complete list of videos, visit our video library