declare
cursor cursor_table is select * from FD_D1H10;
row_table FD_D1H10%Rowtype;
--numb number(7,2):=0;
begin
open cursor_table;
loop
fetch cursor_table into row_table;
exit when cursor_table%notfound;

     declare
       cursor cursor_column is select COLUMN_NAME from user_tab_columns  t where t.table_name  = 'FD_D1H10';
       row_column user_tab_columns.COLUMN_NAME%type;
     begin
       open cursor_column;
       loop
         fetch cursor_column into row_column;
         exit when cursor_column%notfound;
         --numb := numb + 1;
         --此处如何实现啊：dbms_output.put_line(row_table.DH161);
       end loop;
       close cursor_column;
     end;

end loop;
close cursor_table;
end;