How and why the Relational Model works for databases
> All these database aspects remained virtually unchanged since 1970, which is absolutely remarkable. Thanks to the NoSQL movement, we know it's not because of a lack of trying.<p>Kind of an aside, but I find it odd that people treat "relational" and "SQL" as synonymous (as well as "non-relational" and "NoSQL"). You could make a relational database that was managed with a language other than SQL, right?