GeekInterview.com
   Home |  Tech FAQ  |   Interview Questions |  Placement Papers |  Tech Articles |  Learn |  Freelance Projects |  Online Testing |  Geeks Talk |  Job Postings |  Knowledge Base | Site Search |  Add/Ask Question

  GeekInterview.com  >  Interview Questions  >  Data Warehousing  >  Basics

 Print  |  
Question:  What is the Difference between OLTP and OLAP

Answer:
Answered by swetha on 2005-03-30 12:00:33: OLTP 
 
Current data 
Short database transactions 
Online update/insert/delete 
Normalization is promoted 
High volume transactions 
Transaction recovery is necessary 
 
 
OLAP 
Current and historical data 
Long database transactions 
Batch update/insert/delete 
Denormalization is promoted 
Low volume transactions 
Transaction recovery is not necessary 
 


October 10, 2005 01:40:39 #3
 senthil kumar.B CRM Expert  Member Since: October 2005    Total Comments: 15 

RE: What is the Difference between OLTP and OLAP
 

OLTP is nothing but OnLine Transaction Processing ,which  contains a normalised tables and online data,which have frequent insert/updates/delete.

But OLAP(Online Analtical Programming) contains the history of OLTP data, which is, non-volatile ,acts as a Decisions Support System and is used for creating forecasting reports.

     

 

Back To Question