title: how we can delete foreign-key in sqlite?
body: <p>I am working with an SQLite database. I have a table which contain the primary keys of 2 other tables as foreign keys; I want to delete one of them. Here is the code for the table:</p>
  
  <pre><code>protected static final String Item_places=(" CREATE TABLE " 
      + Item_place + "(" 
      + place_id + " INTEGER ," 
      + Item_id + " INTEGER  ," 
      + "FOREIGN KEY("+place_id+ ") REFERENCES " + PlaceTable + "("+ PlaceID+ " ) ON DELETE CASCADE" 
      + "FOREIGN KEY("+Item_id+ ") REFERENCES "+ contentTable+ "("+contentID+"));"); 
  </code></pre>