Differences Between ODS & Staging Areasby Nicholas Johnson
When handling databases, data can be transferred, acted upon and returned to the database. Especially in enterprise-level databases, this data can be in massive quantities and needed in a time-sensitive manner. The Operational Data Store and staging area exist to help process database interactions and calculations while optimizing performance. The systems can act independently, or together.
Operational Data Store
The development of the Operational Data Store (ODS) revolutionized the process for retrieving and acting upon data from a database. The ODS is fed a small amount of data as calculations and transactions are made, creating a data store of the newest data and processed information. By utilizing this information, rather than pulling from a data warehouse, applications can process the data more quickly and ensure the data is the most recent available.
A staging area in a database application consists of a temporary data store and a staging area application. The staging area receives a portion of data, applies necessary calculations and returns cleaned and finished data for placement into a data store or data warehouse.
In many database applications, the ODS will receive its information directly from staging areas. The staging area will process the data and return it to an ODS as the newest information available. The ODS can also perform on its own without the need for a staging area, or provide the original data for a staging area.