title: ALTER TABLE DROP COLUMN failed because one or more objects access this column
body: <p>I am trying to do this:</p>
  
  <pre><code>ALTER TABLE CompanyTransactions DROP COLUMN Created
  </code></pre>
  
  <p>But I get this:</p>
  
  <blockquote>
    <p>Msg 5074, Level 16, State 1, Line 2
    The object 'DF__CompanyTr__Creat__0CDAE408' is dependent on column 'Created'.
    Msg 4922, Level 16, State 9, Line 2
    ALTER TABLE DROP COLUMN Created failed because one or more objects access this column.</p>
  </blockquote>
  
  <p>This is a code first table.  Somehow the migrations have become all messed up and I am trying to manually roll back some changed.</p>
  
  <p>I have <em>no</em> idea what this is:</p>
  
  <pre><code>DF__CompanyTr__Creat__0CDAE408
  </code></pre>