Hello dear friends.

Today I want to share a story from my life, what the Data Wharehouse (DWH) architecture looked like in “Tele2”, one of Russia’s largest mobile operators, before implementing EDW.

I joined the IT division of Tele2 in 2012 in the department of reporting systems. At that time, the company had already existed Wharehouse, on which many processes were already spinning to provide reporting and other processes.

A little about the technical stack used there at that time: the warehouse worked on Oracle database with RAM of 100TB, a T4–4 server with 1 TB storage. Data from various…

Mkrtich Pudeian

Data Wharehouse developer and Data analyst with 10 years experience

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