This is Kumaresh. For the past 10 + years, I have been working as a Software professional with ETL and Reporting tools. The ETL tools include Datastage, Informatica, etc and Reporting Tools include Crystal Report, Cognos, etc. I have applied the Concept of ETL and used ETL tools across Geography and across Several Domains such as Healthcare, Banking and Financial Services, TeleCommunications, Media and Entertainment,etc interacting with variety of Databases such as Oracle, DB2, Teradata, MS SQL Server, Vertica and few more. Due to my interest in teaching and sharing my knowledge to Others, I have published the courses. Feel free to leave me any question or comments. Happy to help them clarified. Thank you.