September 2010
Intermediate to advanced
1704 pages
111h 8m
English
A data explosion has been occurring over the past several years. In a 2006 study, International Data Corporation (IDC; http://www.idc.com) reported that 5 exabytes of digital media (5 billion gigabytes) were stored in 2003, and in 2006 this had ballooned to 161 exabytes. Not only is more data being stored, but users are accessing more data than before. Part of this data growth is a result of the need for business intelligence (BI) systems to deliver actionable insights becoming more critical in the enterprise. Obtaining these insights requires large data volumes for trending and forecasting. As a result, data warehouses are becoming more critical in every enterprise.
This data explosion frequently results ...