title: All data NULL after executing statement in SQL
body: <p>Statement I used: </p>
  
  <pre><code>INSERT INTO table (addr2, addr3) 
      SELECT City, State 
      FROM table
  </code></pre>
  
  <p>I tried to reverse, but I don't know how.</p>
  
  <p>I want to get my data back. All columns and fields are now <code>null</code>.</p>