There are a lot of use cases in python programming where we would require to fetch unique values from a list. If stuck with this problem Don’t worry ! We got you covered. In this article we will ...

The nunique and value_counts methods can be used to get unique values in a series, and their frequencies. For instance, here’s how to find out how many countries we have in each continent: ...

Learn what a distinct query is, why it's useful, and how to perform it in different NoSQL database types, such as key-value, document, column, or graph.

Furthermore, if you only want to count the distinct values of pop2008, you can use the .distinct() method: select([func.count(census.columns.pop2008.distinct())]) In this exercise, you will practice ...