Luis, On Mon, Jun 12, 2006 at 06:24:24PM -0500, Luis Alberto Pérez Paz wrote: > res = PQexecParams ( conn, "select myFunction($1,$2,$3)" , 3, NULL, > paramValues, paraLenghts, paramFormats, resultFormat); > It's works fine, however I dont know how can I retrieve the result that > return the FUNCTION "myFunction". "myFunction" is a postgres FUNCTION which > returns a INT. libpq functions for retrieving query results are described here: http://www.postgresql.org/docs/8.1/static/libpq-exec.html#LIBPQ-EXEC-SELECT-INFO Have you tried them and do you have a special problem with one of those? If so, please give more detail. Getting the result of a function does not differ from getting the result of a regular select of a table or view. Joachim