It's called Embedded SQL, and is part of an ISO standard [1]. At one point an embedded version of Informix translated ESQL/C to ISAM calls, without any SQL pars

It's called Embedded SQL, and is part of an ISO standard [1]. At one point an embedded version of Informix translated ESQL/C to ISAM calls, without any SQL parsing and query compilation at runtime. Though I don't know what this has to do with metaprogramming as we know it today. [1]: https://en.m.wikipedia.org/wiki/Embedded_SQL https://en.m.wikipedia.org/wiki/Embedded_SQL