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Editorial Team
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Asked: 2026-05-27T09:16:53+00:00

… user_id INTEGER NOT NULL, CONSTRAINT fk_user_meta FOREIGN KEY (user_id) REFERENCES users (id) ON

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user_id INTEGER NOT NULL, 
CONSTRAINT fk_user_meta FOREIGN KEY (user_id)
    REFERENCES users (id) ON DELETE CASCADE ON UPDATE RESTRICT

I know from here that ON DELETE CASCADE means that if I delete a row from the users table, then the associated row from the user meta table will be removed too. But what does ON UPDATE RESTRICT do?

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1 Answer

  1. Editorial Team

    RESTRICT prevents the action from happening if there’s any foreign keys that rely on the field that’s being changed.

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