This is an open-source introduction to SQL guide that will help you to learn the basics of SQL and start using relational databases for your SysOps, DevOps, and Dev projects. No matter if you are a ...

Upon first encountering SQL after two decades of Fortran, C, Java, and Python, I thought I had stumbled into hell. I quickly realized that was optimistic: after all, hell has rules. I have since ...

If you are a SQL programmer, learning recursive SQL techniques can be a boon to your productivity. A recursive query is one that refers to itself. I think the best way to quickly grasp the concept of ...