Thanks for that. It has become food for thought. I like the idea of using an interface for this. Something like <u>[the upcoming MetaCommand interface](https://sqlite.org/src/file?name=src/shext_linkage.h&ci=8dc69c81b9ad1c45&ln=78-85)</u>, with methods specific to ctrl-C (or other interrupting), would be perfectly replaceable and clean from a data-hiding, well-defined operation perspective. As for DB management, that's still achewing.