esql\c documentation

Does anyone know where this is thorough esql\c documentation. I am trying to
compile previous examples i used with informix and they will not work for
example when i do
EXEC SQL declare democursor cursor for
select fname,lname
into :fname, :lname
from employee
where lname < :oneline;
---it bombs at the line with "into" in it saying there is a parse error
and when i do this EXEC SQL fetch democursor;
--it tells me that there is another parse error on this line
is there any better documenation for esql/c than whats available in the
programming manual so that i can figure out what is going on?

thanks
Brent