title: Error converting data type bigint to varchar.
body: <pre><code>DECLARE @ID BIGINT
  set @ID = 1323
  UPDATE School 
  SET RegistrationFee = 'fee_' + @ID --&lt;&lt;&lt;&lt;error 
  Where SchoolRegistrationId = 123
  </code></pre>
  
  <p>Error converting data type varchar to bigint.</p>