/**
  * @todo Description of function executeInsert
  * @param  $sqlQuery
  * @param  $credentials[optional]        default value : null
  * @return
  */
 public static function execute_insert($sql_query, $credentials = null)
 {
     RP_Query_Executor::execute_update($sql_query, $credentials);
     return is_null($___mysqli_res = mysqli_insert_id($GLOBALS["___mysqli_ston"])) ? false : $___mysqli_res;
 }
 protected function execute_update($sql_query)
 {
     return RP_Query_Executor::execute_update($sql_query);
 }