Using Group By Clause in Postgres SQL

Introduction In this article, we’ll explore how to use the Group By clause in Postgres to group a set of values. During this tutorial, we’ll use the following structure: What? What does the GROUP BY statement do when fed a dataset? How? How do we best use this clause in our PostgreSQL SQL scripts? Why? … Continued

Postgres Sum Function in SQL

Introduction In this tutorial, we’ll learn how to use the Postgres Sum function in SQL to find the sum of a set of values, including: What? What does the SUM function do when given a set of numbers? How? How do we best use this function in our PostgreSQL SQL commands? Why? When would we … Continued

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