ETL Testing Training Provided by SLA Consultants Gurgaon Training Institute in Gurgaon
ETL stands for Extract, Transform and Load which is a process offloading data from source system to the data warehouse. The data is extracted from OLTP database, then transformed in order to match the data warehouse schema and loaded to the data warehouse database. There are many data warehouses which incorporate data from non- OLTP systems such as legacy system, text files and spreadsheets
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