Notice: Undefined index: strategy in /var/www/html/training/data_update.php on line 17

Notice: Undefined variable: dbhandle in /var/www/html/training/data_update.php on line 26

Warning: mysqli_query() expects parameter 1 to be mysqli, null given in /var/www/html/training/data_update.php on line 26
Error: File template tidak ditemukan.