In an nutshell, data warehousing is collecting and maintaining business live data. The data is Extracted, transformed and Loaded from the active databases to a repository. Then the collected data is integrated to aid in making reports and dashboards for different users.
And at Comztech we have IBM infosphere and DB2 certifications the most reliable technology.
Lastly, our offices are in Parklands, Nairobi, Kenya and we serve the East Africa region.