How to do an onclick with update in the database?

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I’m wondering how to make an onclick by clicking already do an update in the database

javascript sql-update onclick
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Starting from the point that the language used (PHP, .Net, Node.JS) or the database was not specified, it is difficult to help you.

But basically, for web systems, onClick fires an HTTP, whether GET, POST, PUT or DELETE, via ajax, which received in the backend, must do the operation in the database.

Search for topics such as, Ajax, and CRUD PHP or CRUD + Language used.

Hugs.

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