If user left the form fields blank (datatype are date or numeric), I would like to insert a null value into the oracle database. How can I do that? <BR>I tried: <BR>if isnull(request.form(“var”)) then var=null. It did not work. I got message “Application uses a value of the wrong type for the current operation”<BR>But I got no problem with string field.<BR><BR>Can anyone help? Thanks a lot.