title: Bulk action via MySQL query: render all posts in category private
body: <p>I want to do a bulk action on WordPress posts from a specific category: 
  I want to render all posts in the category private.</p>
  
  <p>This MySQL query seems close, but it isn't working 
  (I think I'm getting the parenthetical point wrong):</p>
  
  <pre><code>UPDATE wp_posts SET post_status= 'private' WHERE post_staus = 'publish' and ID in (select object_id from wp_term_relationships where term_taxonomy_id  = 25);
  </code></pre>