I have no clue why I can't save to db if input field is empty?

Question

I have row generated according to the users input. But my problem is that let's say that the user leaves one input field empty. The whole row of data does not get saved into my database. Why is that so...? Is there any particular reason for this?
Here's the code for the dynamically generated input fields.
<%
     for (int i=1; i<=newNum; i++)
          out.println("<TR><TD>"+i+".</TD><TD><input type='TEXT' value='' name='model"+i+"' size='13'></TD><TD><input type='TEXT' value='' name='lquan"+i+"' size='5'></TD>");
          out.println("<TD><input type='TEXT' value='' name='insp"+i+"' size='6'></TD><TD><select name='rej"+i+"'><option value='Blow AAA'>AAA</option><option value='BBB'>BBB</option><option value='CCC'>CCC</option>");
          out.println("</select></TD><TD><select name='area"+i+"'><option value='A'>A</option><option value='B'>B</option><option value='C'>C</option></select></TD><TD><input type='TEXT' value='' name='loc"+i+"' size='6'></TD></TR>");
%>I am using orion server and Mic. Access Database

Answer 1

No i didn't. So. ..that's the problem is it. I will try it out and post another reply.
Thank you Jerry Garcia