The ETL tool executes ETL strategy. The 'ETL' stands for "Extract, Transform, and Load". ETL is generally connected with Data Warehousing ventures. There are abundant sources for ETL to extract data. This data is then transformed into a mode and from there it is loaded into a data warehouse.
Both are Selenium and ETL testing is very important process in development. Selenium is used to test your software where as ETL test your database. Both are very interest concept. To know more about software and database testing, visit my blog...
One of the best career option in IT industry - If you really want to be associated with database as a tester. ETL Testing could be great profile for you. Read my complete article to know more about ETL testing.
An ETL tool extracts the data from various data sources and transforms the data (like joining fields, keys, removing incorrect data fields, applying calculations, etc.), and then loads it into a Data Warehouse.
Those who are from Mathematics background like B.Sc/M.Sc in Math or Statistics. And those who are working in IT like ETL Developer, Database Developer, Data warehouse developer or Hadoop Big Data Developer/Analyst can easily switch on Data Science because this field is again related to data.
In Automation testing track there are few major components in selenium which testers can learn and get better growth in carrier. Those tools are: Selenium IDE, Selenium RC, Web Driver, TestNG Framework, Selenium Grid, Maven and selenium Integration, Cucumber.