A data warehouse is a repository for structured, filtered data that has already been processed for a specific purpose. Dataware collect the data from multiple sources and transform the data using ETL process then load it to the Data Warehouse for business purpose.
Operational Database are those databases where data changes frequently. They are mainly designed for high volume of data transaction. They are the source database for the data warehouse.It is used for maintaining the online transaction and record integrity in multiple access environments.
|Sr. No.||Key||Data warehouse||Operational Database|
|1||Basic||A data warehouse is a repository for structured, filtered data that has already been processed for a specific purpose||Operational Database are those databases where data changes frequently|
|2||Data Structure||Data warehouse has denormalized schema||It has normalized schema|
|3||Performance||It is fast for analysis queries||It is slow for analytics queries|
|4.||Type of Data||It focuses on historical data||It focuses on current transactional data|
|5.||Uses Case||It is used for OLAP||It is used for OLTP|