title: alter column table and make default value to empty string
body: <p>good day.. just want to ask, is it possible to alter a column table and make the default value to empty string.. </p>
  
  <p>i tried using this query, </p>
  
  <pre><code>    Alter Table Employee Alter Column sJobTitle Varchar(200) DEFAULT '' 
  </code></pre>
  
  <p>Unfortunately, it doesn't work.. </p>
  
  <p>Please let me know, if 'm doing it correct.. </p>
  
  <p>Thanks, </p>
  
  <p>Link</p>