Ne pas prendre en compte les colonnes cachées

        /* Récupération des colonnes des tableaux de bord */

        if ($tables) {

            $sql = "SELECT TABLE_NAME, COLUMN_NAME, NULLABLE FROM USER_TAB_COLS WHERE "

                . "TABLE_NAME IN ('" . implode("','", array_keys($tables)) . "') ORDER BY COLUMN_ID";

                . "TABLE_NAME IN ('" . implode("','", array_keys($tables)) . "') AND hidden_column = 'NO' ORDER BY COLUMN_ID";

            $d = $this->query($sql, []);