Chapter 1. Product Overview
The purpose of ETL (Extract, Load, Transform) tools is to help with the consolidation of data that is dispersed throughout the information system. Data is stored in disparate applications, databases, files, operating systems, and in incompatible formats. The consequences of such a dispersal of the information can be dire, for example, different business units operating on different data will show conflicting results and information cannot be shared across different entities of the same business.
Imagine the marketing department reporting on the success of their latest campaign while the finance department complains about its lack of efficiency. Both have numbers to back up their assertions, but the numbers do not match! ...
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