At its heart, data modeling is about understanding how data flows through a system. Just as a map can help us understand a city’s layout, data modeling can help us understand the complexities of a ...

In 2012, HBR dubbed data scientist “the sexiest job of the 21st century”. It is also, arguably, the vaguest. To hire the right people for the right roles, it’s important to distinguish between ...

RIGHT JOIN (or RIGHT OUTER JOIN): It’s the opposite of a LEFT JOIN. It keeps all rows from the right table and matches from the left. Less common than LEFT JOIN, but good to know it exists.

The amount of data and its complexity has been growing at a rapid clip and shows no sign of stopping. To contain this data, organizations have been introducing different types of database platforms ...