September 2017
Intermediate to advanced
360 pages
9h 43m
English
Decision Support Systems (DSS) and data warehouse technologies were developed to address the reporting and analysis shortcomings of the 3NF schemas employed by enterprise applications. A data warehouse is a subject-oriented integrated copy of data in one or more applications or operational systems. A data warehouse is made up of an ecosystem of several functions with the end goal of maintaining an operational history, and enabling and performing analytics to support decision making. As many enterprises have grown through acquisitions, they may have multiple systems performing the same function at various locations from different vendors. As they are from different vendors, there is no integration between ...