> Hi,
>
> >
> > Not possible - you need to use the WEEKOFYEAR UDF function which is a
> > standard part of the UDF library.
>
> what UDF... I don't find this UDF Function "WEEKOFYEAR" in fbudf or
> ib_udf
>
> Nils

FreeUDFLib.dll has F_WEEKOFYEAR function plus quite a few more with regard
to calendar stuff. Actually have you tried the "execute statement" syntax -
see the release notes.
Alan