ETL testing Online training is the process for extracting, transforming and loading large amount of data from a single database to another. There are numerous ways of doing it such as coding your own processes to the more often used way of implementing ETL tools. These tools can do the job extremely well and if selected wisely, they can save you a lot of coding efforts and money because you can graphically build various processes and in various cases without knowing how to program for various databases. There are numerous ETL testing tools present in the market today that can get you the best possible service, however, it is your duty to check the best possible provider that may suit all your company needs within your budget. Apart from that, you may also look for cloud connectors and other technologies to make the most of the data present within an enterprise.