title: Alter column of type timestamp
body: <p>I want to update an empty table , which has a column of type timestamp to varbinary(8) </p>
  
  <p>I used the following command </p>
  
  <pre><code>ALTER TABLE Notification  ALTER COLUMN RowRevisionID varbinary(8) 
  </code></pre>
  
  <p>and I get and an error </p>
  
  <blockquote>
    <p>Cannot alter column 'RowRevisionID' because it is 'timestamp'.</p>
  </blockquote>
  
  <p>How can I change a timestamp column type?</p>
  
  <p>I do not wish to drop the column an add a new one , because that will create a column at the end , and I wish to preserve column order to use this table in an INSERT INTO</p>