> I have this situation.
> Table A with field F numeric (15,4) with value 0.0300 .
> I do export into script or file and the value for this field is
> 0.029999999999999999 .
> Why?????
> This difference is from firebird or from utilities i use???

From utilities. Firebird stores that value exactly.
(Unless you use obsolete Dialect-1)

Ivan
http://www.volny.cz/iprenosil/interbase/