title: Why default value is not inserting in column when allow null is true?
body: <p>I have a table address in which a column called "faxno" which allows null and has default value as 0.When we insert a record programmatically using dataset we are getting the faxno value as "Null" but not as "0".</p>
  
  <p>I didn't understand why this is happening?</p>
  
  <p>Is there any possiblity to insert default value instead of Null?</p>