Why is NoSQL so popular?

John Nunmaker, from Ordered List, presented the following presentation at WindyCityDB in Chicago a couple of days ago. After providing us with a reminder of the databases history he dives into NoSQL. Couple of highlights from that section:

• NoSQL technologies are development and operations friendly
• Moving from "How do we store?" to "How do we use"

What about the future? Well John sees two things:

• Hosted
• Polyglot Persistence

Unfortunately, we don't get to see John detail his thoughts on polyglot persistence. However, the idea is simple that applications will no longer use a single persistence layer. In theory and in my opinion this is what should be done right? Use the right tool for the job. It will be interesting as more applications adopt this strategy the issues it poses. We will explore ployglot persistence more in depth tomorrow.

Update: Here is the actual presenation on Vimeo (thanks to Ryan Briones for the link).