How to Iterate rows from Sqlite-query in android?

I am fetching record from database But I need the last record to display first and so on. Below is the query I am using could some one help me. To tell correct query.

public Cursor fetchAllRec() {
    db = dbHelper.getReadableDatabase();
    Cursor cur = null;
    cur = db.query(TBL_NAME, allColumns, null, null, null, null, null);
    if (cur != null) {
        cur.moveToFirst();
    }

    return cur;
}