Mysql in PHP - how to update only one row in table but with greatest id number

Question

I am trying to update fields in my DB, but got stuck with such a simple problem: I want to update just one row in the table with the biggest id number. I would do something like

Answer 1

UPDATE table SET name='test_name' WHERE id = (SELECT max(id) FROM table) 

This query will return an error as you can not do a SELECT subquery from the same table you're updating.

Try using this:

UPDATE table SET name='test_name' WHERE id = (
    SELECT uid FROM (
        SELECT MAX(id) FROM table AS t
    ) AS tmp
)

This creates a temporary table, which allows using same table for UPDATE and SELECT, but at the cost of performance.