Author Question: An aggregate function works on multiple rows a time. Indicate whether the statement is true or ... (Read 67 times)

theo

  • Hero Member
  • *****
  • Posts: 698
An aggregate function works on multiple rows a time.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is the term for a key that is composed of two or more attributes joined together?
 
  A) Composite Key
  B) Natural Key
  C) Surrogate Key
  D) Candidate Key



robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

TRUE

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library