Before any fruit and vegetables are sold in supermarkets, they are first harvested from various farms and orchards. Then, they are sorted into their respective categories, cleaned to remove any bacteria and soil, and packaged uniformly during the preparation stage. Finally, depending on store orders, they are sent out to various locations.
In the data analytics world, raw data goes through a similar process before it can be analyzed and reported on — and this is where ETL comes in.
There are three main steps in the ETL process — Extract, Transform, and Load. Together, they work to prepare your raw data for analysis and reporting.
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