i created the button in my form9i for loaddata

and created trigger when-button-press my code is

begin
host ('cmd');
end;

it call command.
c:\

i key word like this
c:\sqlldr
the message is
"message 2100 not found; No message file for product=rdbms"

but when i run cmd out of form
c:\sqlldr
is o.K.

i don't know why,pls tell me
what is the solution?

I don't understand your problem very well , but anyway if you will use the sqlldr from

button at forms , than you should to have a look for this page first :-

http://technet.microsoft.com/en-us/library/bb490880.aspx#

because you will need to determine a specific parameter after CMD order.
most probably ..... this is the code that you need :-

HOST('CMD /C SQLLDR username/password@server control=loader.ctl');

for more information about SQL*Loader Frequently Asked Questions, go to :-

http://www.orafaq.com/wiki/SQL*Loader_FAQ

have a nice day