title: SQL to add column and comment in table in single command
body: <p>I am using Oracle 11g for my web application. I want to add a column and a comment to an existing table. I can do that easily with the below commands</p>
  
  <pre><code>ALTER TABLE product ADD product_description VARCHAR2(20)
  </code></pre>
  
  <p>and </p>
  
  <pre><code>COMMENT ON COLUMN product.product_description 
       IS 'This is comment for the column';
  </code></pre>
  
  <p>But I want to do above task in single command. I searched on internet for a command to add a column and comment in a single command but I couldn't find. I wonder if this is possible. Any suggestions would be highly appreciated.</p>