title: How to write select-where-column=unique query in Android
body: <p>I'm unable to write select-where-unique query for my database. I have managed to query my db using where clause by using:</p>
  
  <pre><code>        Cursor mCursor =
                  db.query(true, DATABASE_TABLE, new String[] {
                          KEY_ROWID,
                          KEY_KEYWORD}, 
                          KEY_TIME + "=" + strtime, 
                          null,
                          null, 
                          null, 
                          null, 
                          null);
  </code></pre>
  
  <p>How can I insert "DISTINCT" keyword for column KEY_KEYWORD?</p>