Data Mining describes a highly specialized "relational" method of interpreting Analytics, namely merging internal and external data sets together, aligning the two sets along some common delineation, and developing intelligent queries to extract "if/then" real-world association between those two data sets. Data Mining is the method of data science at play whenever a business makes marketing decisions based upon external factors (for example, the weather or a holiday) as relates to internal factors (for example, alcohol sales).