Fpc-developer Michael van Canneyt has announced the SQLDB Rest Bridge library. With this library it becomes really simple to expose a SQL-database through a REST service.
The library is a part of fcl-web, one of the packages that come with fpc. It’s a pity that the library is not available as a separate package, so that it could be used with fpc 3.0.4. At the moment you have to install fpc 3.3.1 or grab the sources and compile everything by yourself.
More information can be found in the announcement and the wiki