What is ETL Testing?
An ETL tool takes out the data from all these heterogeneous data sources, transforms the data (like joining fields, applying calculations, removing unsuitable data fields, keys, etc.), and will load it into a Data Warehouse. This is an opening tutorial that illustrates all the basics of ETL testing.
Beginners & Freshers :
This tutorial has been depicted for those readers who wish to study the fundamentals of ETL testing. It is primarily going to be helpful for all those software testing professionals who are needed to perform data analysis to retrieverelated information from a database.
Requirement :
The reads of this tutorial need to have hands-on experience of handling a database SQL queries. Including that, it is going to be helpful if the readers have fundamental knowledge on data warehousing concepts.