Author Question: Indexes are most useful for columns that frequently appear in WHERE clauses of SQL commands, either ... (Read 49 times)

stephzh

  • Hero Member
  • *****
  • Posts: 556
Indexes are most useful for columns that frequently appear in WHERE clauses of SQL commands, either to qualify the rows to select or for linking.
 
  Indicate whether the statement is true or false

Question 2

NoSQL systems allow ________ by incorporating commodity servers that can be easily added to the architectural solution.
 
  A) scaling down
  B) scaling out
  C) scaling up
  D) scaling over


Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

TRUE

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

For a complete list of videos, visit our video library