Extract, Transform and Loading (ETL) Data Phase

Data Extraction After collecting/gathering data successfully from the different sources, the data experts (data scientists/engineers) have a primary assignment to extract data from different data sources (SQL or NoSQL servers, Flat files, Email, Web pages, Online forms). This process takes place immediately after the data collection step. The collected data are usually in unstructured form.…

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Data Modelling

Data Modelling  The first step of every database design project is data modelling. This process entails the analysis and definition of all the different data within a business as well as the development of relationships, semantics and constraints between these data points. In other words, during the data modelling process, the data team access all…

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