How can i resolve 'cannot delete or update a parent row: a foreign key constraint fails' in sql?

Example:

DELETE FROM users WHERE id = 1;

You're trying to delete or update a row that's referenced by another table through a foreign key.

Solution:

First, modify or delete the rows in the child table that reference the parent table row, and then perform the desired operation.

DELETE FROM orders WHERE user_id = 1;
DELETE FROM users WHERE id = 1;