how/resources to compile a procedural language into [sql]

I am looking into the possibility/feasibility/resources for building a cross compiler which takes a procedural or Object Oriented language like C, or Java and compiling it into SQL. I understand that the advantage of SQL code is performing set operations which is fundamentally different from procedural languages which generally process 1 at a time. If anyone has done this before, or if it is thought of as too compli开发者_StackOverflow社区cated to do or any other ideas/concerns/suggestions would be greatly appreciated. Thanks in advance Philip