Dynamic Relational: https://stackoverflow.com/questions/66385/dynamic-database-s... Unlike the NoSql movement, it embraces SQL and many RDBMS conventions to reduce the learning curve. It only removes or changes RDBMS features that get in the way of dynamism, but keeps the baby in the bathwater. And it allows incremental tightening of constraints/types to go from prototype to production. I'd love such a tool for proto…
You might like recfiles: https://en.wikipedia.org/wiki/Recfiles
Maybe parts of it can be borrowed to implement Dynamic Relational (DR), but it looks too different from RDBMS such that there's a big learning curve. A goal of DR is to only deviate from RDBMS conventions JUST enough to get sufficient dynamism. It doesn't try to be a new database paradigm.