Hey @dirahh,
Currently im updating the product manually just like your example there by importing csv file but i wish the product to be automatically updated through phpmyadmin as im planning to connect my local database to the phpmyadmin.
I’m not too sure what you’re using as a local database but to update a WordPress sites database remotely you would need whatever software you’re running locally to be able to connect to your sites MYSQL database.
That software would also need to allow the data from your database to be extracted, updated and then imported into your site’s database again.
WooCommerce has a REST API which you could possibly have a developer integrate with your local software so that you could alter data remotely without visiting your actual WooCommerce website.
With regards to the WooCommerce REST API, access codes for that can be set from inside your WooCommerce site by following this documentaiton.
https://docs.woocommerce.com/document/woocommerce-rest-api/
For the developer level documentation, you can find located on this site below and this covers authentication and all of the endpoints and parameters which can be accessed via the REST API.
https://woocommerce.github.io/woocommerce-rest-api-docs/#introduction
With regards to testing API calls, we have some information on testing API calls using an App called Postman and I’ve referenced that for you below too.
https://github.com/woocommerce/woocommerce/wiki/Getting-started-with-the-REST-API
I hope this helps.