title: Alter to varchar
body: <p>I'm trying to alter a table from int to varchar using </p>
  
  <pre><code>ALTER TABLE shares
  ALTER COLUMN link VARCHAR(255) NOT NULL;
  </code></pre>
  
  <p>Currently getting the error message </p>
  
  <pre><code>  #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'VARCHAR(255) NOT NULL' at line 2
  </code></pre>