You can hypothetically write your entire product in SQL with appropriate bindings to SQLite. For me, SQL with CTEs is a very compelling way to model tricky busi

You can hypothetically write your entire product in SQL with appropriate bindings to SQLite. For me, SQL with CTEs is a very compelling way to model tricky business logic. Building a SQL-based rules engine is trivial if your host language has a good SQLite library. This thing starts to grow legs once you realize you can recursively get into the rabbit hole by binding something like an Execute_Sql UDF - You can store the actual scripts within the same schema they operate on. Treating your code as data means you can do things like transactional updates of business logic while the system is serving live requests. You also get simple reflection & search over the business logic.