title: #1062 - Duplicate entry 0' for key 'PRIMARY'
body: <pre><code>INSERT INTO `crm_customer` (`customerid`, `firstname`, `lastname`, `address`, 
    `telephoneno`, `companyname`, `fax`, `comments`, `countryid`, `statename`, 
    `cityname`, `emailaddress`, `zipcode`, `dateofbirth`, `unsubscribe`) 
  VALUES ('0', 'jhghjgfk', 'kghjkj', 'hjkghjgh', '8776785', 'hjghjkgyjk', 
       '457665', 'jghjgfhj', '0', 'ghjgfjgf', 'gjgfhj', 'ghjgfhjgfj', 
       '764574576', '2017-03-13', '')
  </code></pre>
  
  <p>I'm getting error as `#1062 - Duplicate entry 0' for key 'PRIMARY'</p>
  
  <hr>
  
  <p><a href="https://i.stack.imgur.com/7WBZ6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7WBZ6.png" alt="Schematics of table"></a></p>