« previous next »

Author Question: What are the record-level data transformation functions? What will be an ideal ... (Read 50 times)

nautica902

  • Hero Member
  • *****
  • Posts: 591
on: Jul 7, 2018
What are the record-level data transformation functions?
 
  What will be an ideal response?

Question 2

Databases were developed as the first application of computers to data processing.
 
  Indicate whether the statement is true or false
Modern Database Management ¦ Hoffer, Venkataraman, Topi ¦ 13th Edition
Buy Test-Bank


kingdude89

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 7, 2018
Answer to Question 1

Record-level data transformation functions operate on a set of records, such as a file or a table. The most important record level functions are:
1. Selectionthis is the process of partitioning data according to some pre-defined conditions
2. Joiningcombines the data from several tables into a single view
3. Normalizationdecomp osing relations with anomalies
4. Aggregationprocess of transferring data from a detailed level to a summary level

Answer to Question 2

FALSE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

nautica902

  • Hero Member
  • *****
  • Posts: 591
Reply #2 on: Jul 7, 2018
Thank you


kingdude89

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 7, 2018
No problemo


« previous next »
 

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?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

A health history is essential in collecting subjective data about metabolic acidosis. A health history is essential in collecting subjective data about metabolic acidosis.
Medical assistants can quickly pull up a patient record when a phone call is received. Medical assistants can quickly pull up a patient record when a phone call is received.
Fluidization - Data Table of experiment Fluidization - Data Table of experiment
The Skeletal System and Its Functions The Skeletal System and Its Functions
Chi-Square Analysis of Mendel’s Trihybrid-Cross Data Chi-Square Analysis of Mendel’s Trihybrid-Cross Data
Avery, MacLeod, and McCarty’s use of in vitro transformation Avery, MacLeod, and McCarty’s use of in vitro transformation
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library