https://www-sop.inria.fr/mimosa/fp/Bigloo/doc/bigloo-19.html
Here's all it has:
1) Open a database.
2) Close a database.
3) Format a string to escape it properly (would need some changes)
4) Execute a SQL command, auto-formatting the command string with arguments, returns one value
5) Evaluate a SQL statement (not clear how these are different)
6) Evaluate a SQL statement, map a Scheme proc over the values and return a list.
You think this would make sense as a SRFI, just to get some easy and cheap persistence into Scheme?