XML was the data storage - IBM DB9 supported it natively in a similar way to how Postgres supports jsonb. You'd use XSLT to translate your data into a webpage.

XML was the data storage - IBM DB9 supported it natively in a similar way to how Postgres supports jsonb. You'd use XSLT to translate your data into a webpage. Or a mobile device that supported WML/WAP. Or a desktop application. That was the dream, anyhow.