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MySQL is a database system used by many websites on the Internet. Joomla is based on PHP and MySQL.

8 votes
2 answers
2k views

Why doesn't Joomla use foreign keys in the core table structures?

I am developing a custom component and want to use a foreign key user_id referenced to #__users(id). I noticed that Joomla doesn't use any foreign key in its core tables for example in #__user_notes o …
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