title: What does 'default' varchar(255) in MySQL mean?
body: <p>I came across this line in a MySQL script</p>
  
  <pre><code> `other_validator` varchar(5000) NOT NULL DEFAULT '',
     `default` varchar(255) NOT NULL DEFAULT '',
    `widget` varchar(255) NOT NULL DEFAULT '',
  </code></pre>
  
  <p>What does this line signify?</p>
  
  <pre><code>`default` varchar(255) NOT NULL DEFAULT '', 
  </code></pre>
  
  <p>How can this be implemented in SQL Server?</p>