DATABASE FUNDAMENTALS
DATA WAREHOUSING AND DATA MINING
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Data transformation includes which of the following?
|
|
A process to change data from a detailed level to a summary level
|
|
|
A process to change data from a summary level to a detailed level
|
|
|
Joining data from one source into various sources of data
|
|
|
Separating data from one source into various sources of data
|
Explanation:
Detailed explanation-1: -Processes such as data integration, data migration, data warehousing, and data wrangling all may involve data transformation.
Detailed explanation-2: -Data transformation is the process of converting data from one format to another, typically from the format of a source system into the required format of a destination system. Data transformation is a component of most data integration and data management tasks, such as data wrangling and data warehousing.
Detailed explanation-3: -Answer» A. a process to change data from a detailed level to a summary level.
There is 1 question to complete.