ETL stands for Extraction, Transformation, and Loading. It is an essential concept in Data Warehousing systems. There are three basics steps in Data Integration Process.
* Extraction stands for extracting the data from different data sources such as transactional systems or applications.
* Transformation stands to apply the conversion rules on data so that it becomes suitable for analytical reporting.
* Loading process involves, to move the data into the target system, i.e., Data Warehouse.
