by Jintien C
A data staging area is in part of data warehouse. In the data staging area, it extracts data from a source, transforms data, and loads data into the data warehouse. There are many reasons and advantages to have a staging area in the data warehouse. It can load tables directly so that it can prevent semantic disintegrity or any structure changes. In addition, by having data staging area, the source will not be affected while data warehouse is performing process. Moreover, it makes easier to do aggregation and summation; especially for complex transformation process.
I think the data warehouse is nice to a data staging area. It can reduce errors while performing a query. It also maintains the source integrity. It potentially helps to reduce transformation processing time because of its staging table data.
Rahman, N. (2007). Refreshing data warehouses with near real-time updates. The Journal of Computer Information Systems, 47(3), 71-80. Retrieved November 27, 2011, from ABI/INFORM Complete: http://search.proquest.com/docview/232574587?accountid=10357
This blog took me about 60 minutes to write up.
I read about 4 blogs post by my classmates this week.
Each comment took me about 5 minutes to comment on.