This project performs SQL-based data analysis on a custom Ecommerce dataset. The dataset contains three tables: customers, products, and orders. The objective is to write SQL queries using SELECT, ...

Getting ready for a SQL interview can feel like a big task. There are so many things to know, and interviewers love to ask about them! This guide is here to help. We’ve gathered some of the most ...

This quirk is a little annoying, and hard to teach people. It also gets messy when there are genuine subqueries (with unions, in particular). Why not automatically wrap the query if it lacks an ...