« previous next »

Author Question: What are the record-level data transformation functions? What will be an ideal ... (Read 18 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?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

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?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Treatment of Depression with Ketamine The graph shows the effects of ketamine on symptoms of depress Treatment of Depression with Ketamine The graph shows the effects of ketamine on symptoms of depress
Level II HCPCs Codes Level II HCPCs Codes
Minerals: Functions and RDAs Minerals: Functions and RDAs
Selective breeding of maze-bright and maze-dull strains of rats by Tryon (1934). (Data from Cooper, ... Selective breeding of maze-bright and maze-dull strains of rats by Tryon (1934). (Data from Cooper, ...
Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011 Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011
Video: Resting membrane potential - electrical polarity and maintenance requirements

For a complete list of videos, visit our video library