title: Need to update the value of a column in SQLite
body: <p>I need to negate the value of a column for all the rows in a column. I am trying to do so using the following query, but it is not updating any Row:</p>
  
  <pre><code>sqliteDatabase.rawQuery("UPDATE "+ SQL_TABLE_NAME + " SET "+ COL_1 +" = " + "-"+COL_1  , null);
  </code></pre>
  
  <p>Where COL-1 = col_1, which is of type integer in the table.</p>
  
  <p>--Twinks</p>