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
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.
Index
OLTP : FEW
OLAP : MANY
JOINS
OLTP : MANY
OLAP : FEW
oltp:
1.current data only
2.insert,update,delete operations are possible
3.continous changing of data
4.1 year data is present
5.only one record is processed at a time
6.data is present in 2d format
olap:
1.current+historical data
2.used for reprting and analysis
3.non volatile in nature
4.5-30 yrs of data is stored
5.group of records processed at a time
6.data is present in muti dim format
