This is the first part which published at the last! I previously published 7 posts for the series of “I’m New to BI, Where to Start?”. However I got some feedback from audience that are not coming from the world of Database, and they are not familiar with relational database structure, primary keys, foreign keys, constraints, indexes, T-SQL…. So I felt the requirement for a preliminary post that links to some references to have better understanding of prerequisites to starting BI. Business Intelligence is the art of fetching information to support decisions based on the story behind the data. With this definition the first and foremost prerequisite is to understand data and how to work with it.