public void start() { conn = SQL.getConn(); for (int i = 0; i <= 108233; i += 1000) { String selectSql = "SELECT DISTINCT urllong" + " FROM final_s_t_l2" + " ORDER BY urllong" + " limit " + i + ",1000;"; System.out.println("############" + i + "###########"); selectData(selectSql); } finished(); }