MySQL Database import causing issue special characters (ě ř č ů) - mysql

Question

Hi I recently changed the hosting provider for my website. When doing this I exported the mysql database I had in my previous cpanel phpmyadmin. It had CHARACTER SET latin1 and COLLATE latin1_swedish_ci. After I importing it to my new phpmyadmin I saw there was an issue with displaying the characters written in Czech ě ř č ů which appeared as question mark or weird symbols etc. I also wasn't able to insert these letters at first but after changing the table CHARSET to utf8 I'm able to insert them. But how do I export the data from my old database and import it in the new one without messing up the data? Here's what the database looks like:
SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET AUTOCOMMIT = 0;
START TRANSACTION;
SET time_zone = "+00:00";
/*!40101 SET #OLD_CHARACTER_SET_CLIENT=##CHARACTER_SET_CLIENT */;
/*!40101 SET #OLD_CHARACTER_SET_RESULTS=##CHARACTER_SET_RESULTS */;
/*!40101 SET #OLD_COLLATION_CONNECTION=##COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;
--
-- Database: `sambajiu_samba`
--
-- --------------------------------------------------------
CREATE TABLE `bookings` (
`id` int(11) NOT NULL,
`fname` varchar(100) NOT NULL,
`surname` varchar(100) DEFAULT NULL,
`email` varchar(255) NOT NULL,
`telephone` varchar(100) NOT NULL,
`age_group` varchar(100) DEFAULT NULL,
`hear` varchar(100) DEFAULT NULL,
`experience` text,
`subscriber` tinyint(1) DEFAULT NULL,
`booking_date` varchar(255) DEFAULT NULL,
`lesson_time` varchar(255) NOT NULL,
`booked_on` datetime DEFAULT CURRENT_TIMESTAMP
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
ALTER TABLE `bookings` ADD PRIMARY KEY (`id`);
ALTER TABLE `bookings` MODIFY `id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=345;

Answer 1

Czech is not handled by latin1. It would be better to use utf8mb4 (which can handle virtually everything in the world). Outside of MySQL, it is called "UTF-8".
How did you do the "export" and "import"? What is in the file? Can you get the hex of a small portion of the exported file -- we need to check what encoding was used for the Czech characters.
As for "as question mark or weird symbols", see question marks and Mojibake in Trouble with UTF-8 characters; what I see is not what I stored .
Your hex probably intended to say
Rezervovat trénink zda
In the middle of the hex is
C383 C2A9
Which is UTF-8 for é. When you display the data, you might see that, or you might see the desired é. In the latter case, the browser is probably "helping" you by decoding the data twice. For further discussion on this, see "double encoding" in the link above.
"Fixing the data" is quite messy:
CONVERT(BINARY(CONVERT(CONVERT(
UNHEX('52657A6572766F766174207472C383C2A96E696E6B207A6461')
USING utf8mb4) USING latin1)) USING utf8mb4)
==> 'Rezervovat trénink zda'
But, I don't think we are finished. that acute-e is a valid character in latin1. You mentioned 4 Czech accented letters that, I think, are not in Latin1. Latin5 and dec8 may be relevant.