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

Author Question: What is query optimization? What will be an ideal response?[br][br][b][color=#7BCCB5]Question ... (Read 61 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
What is query optimization?
 
  What will be an ideal response?

Question 2

What type of columns does a fact table contain?
 
  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

cpetit11

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

Query optimization refers to examining multiple ways of executing the same query and choosing the fastest option.

Answer to Question 2

A fact table contains fact-measure attributes and foreign keys that connect the fact table to the dimension tables.




roselinechinyere27m

  • Member
  • Posts: 557
Reply 2 on: Jul 7, 2018
Great answer, keep it coming :)


elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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.

For a complete list of videos, visit our video library