Author Question: Which order is correct in the retrieval and presentation of data? I. Select rows from the ... (Read 59 times)

lracut11

  • Hero Member
  • *****
  • Posts: 536
Which order is correct in the retrieval and presentation of data?
 
  I. Select rows from the relation.
  II. Derive new attributes.
  III. Join two relations together.
  IV. Present data.
  V. Choose a relation from the database.
  VI. Project columns from the relation.
  VII. Calculate totals and performance measures.
  VIII. Index or sort rows.
  A) V - III - II - I - VIII - IV - VI - VII
  B) V - III - VI - I - II - VIII - VII - IV
  C) III - V - VI - I - II - VIII - VII - IV
  D) V - III - II - I - VI - IV - VII - VIII
  E) III - V - II - I - VI - VII - VIII - IV

Question 2

In drawing the tree, identify all conditions and actions and the order and timing of these.
 
  Indicate whether the statement is true or false



jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Answer to Question 1

B

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

For a complete list of videos, visit our video library