thanks again...

no i am not confusing the byte values i meaned the number of character storage...

and my problem is on inserting values...

for example:

mystring="helloworld"

rs.setString(1,mystring); (by the way my field is nvarchar...

by the way i think my second problem is about inserting method...

i use this method with java.

result.setString(1,Username);

username is a string and includes trimmed username value....

but although it is trimmed it...

thanks a lot for your answers...

i couldnt find "ANSI_PADDING off or on" setting...

i must use unicode so nvarchar sure coz it must support multilanguage...so if i limit nvarchar field to...