Querying Microsoft SQL Server 2012

   Study notes for Querying Microsoft SQL Server 2012 in a mind map.

ETL - 200

        Since my original ETL 101 post, I have been spending quality time to retrospect myself to evaluate my ETL knowledge. This evaluation helped me to close the gaps that I have. I came up with the below ETL concepts/skillset mind map that may help to evaluate ETL concept/skillset.

ETL 201

ETL 202

ETL Testing - 101

                                        ETL Testing...we all know its full form is Extract Transform Load. Unlike traditional testing or backend/database testing ETL testing to be done with a different test approach. Though I have done combination backend, database and ETL testing in past I did not deep dive into ETL testing until I was asked to explain how I would do ETL testing. Since then I am spending time unlearn-learn...came across the site Datagaps...though there are many sources to learn have started going through this site and taking notes. Made an attempt to represent the notes in mind-map for easy reference.