Ex: SELECT COUNT(*) FROM customers; counts the total number of customers. You can use aggregate functions in SQL queries to perform operations on a set of values and return a single calculated ...

This repository contains a collection of SQL queries demonstrating the use of aggregate functions and SQL clauses as part of a database assignment.

An aggregate function error in SQL occurs when you try to use an aggregate function in a way unsupported by the SQL language. You may experience the error if you do ...

In this article, we will introduce some of the best SQL query functions for data analysis and show you how to use them in different scenarios. Aggregate functions allow you to calculate summary ...

What is an SQL Window Function? A window is a set of rows or observations in a table or result set. In a table, you may have more than one window depending on how you specify the query.

(1573, 'Mark Lyon', 1175, 40, TO_DATE('07-09-2008', 'DD-MM-YYYY'), 1550, 110), (1932, 'Stuart Twain', 1608, 60, TO_DATE('23-08-2009', 'DD-MM-YYYY'), 1550, 230), (1875 ...