Introduction
Before the Cloud Data Warehouse, most of the companies adopted the traditional Cloud Data Warehouse.
The traditional system of Data Warehouse permitted with various difficulties to gather data from a wide range of external or internal sources of an organization in order to support the analytical operations.
In general, the architecture of the traditional Data Warehouse is characterized by three tiers:
Anyway, to sustain this kind of system companies spent much to maintain hardware, server rooms and the cost of hiring a specific team to run it. Cloud Data Warehouse become the solution for these problems.
In this article I will give you an overview of the most used cloud data warehouses nowadays, which are Amazon Redshift and Azure Data Warehouse.
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