Question asked about ETL (little explanation needed)

View previous topic View next topic Go down

Question asked about ETL (little explanation needed)

Post  aashaya m on Mon Nov 14, 2011 12:48 pm

What do you understand by the term ETL (Extraction Transfer Load) with respect to data mining and data warehousing ? ??

M.tech ..DOEACC

aashaya m

Posts : 18
Join date : 2011-04-25

View user profile

Back to top Go down

Extract, Transform, Load

Post  Alan Musnikow on Tue Nov 22, 2011 11:38 pm

In my experience, the "T" in "ETL" is an abbreviation of "Transform", not "Transfer."

http://en.wikipedia.org/wiki/Extract,_transform,_load has an article that starts with the following.
Extract, transform and load (ETL) is a process in database usage and especially in data warehousing that involves:
  • Extracting data from outside sources

  • Transforming it to fit operational needs (which can include quality levels)

  • Loading it into the end target (database or data warehouse)
avatar
Alan Musnikow

Posts : 6
Join date : 2010-06-17
Location : Lexington, Massachusetts, U.S.

View user profile http://musnikow.com/

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum