NULL is a fickle beast, and for the people not accustomed to how it works in SQL, it can create many problems (read: incorrect data output). This is especially true for those coming from ...

Spread the loveNULL in SQL is a powerful concept, representing the absence of a value. It’s used when data is unavailable or unknown, but its usage requires careful consideration. The first step is ...

This repository contains SQL queries from various popular online learning resources e.g. Vertabelo Academy, SQLZoo etc. - ybg345/sql-hands-on ...