Database management is not as sexy as a lot of the machine learning content on medium, but it is important to understand at any data science position, from the most entry-level to the most senior. Today’s blog will be about database normalization. Database normalization at its core is about organizing a database and reducing redundancies to make it more efficient. In relational database management, this concept is incredibly important. If related tables contain duplicate entries, much of their purpose of gaining efficiency is lost.