ta bort där id är störst

Första idén (bland många andra som hade exakt samma sak):

DELETE FROM orders 
WHERE order_id = 
      ( SELECT MAX(order_id)
        FROM orders
      )

Tyvärr klagar MySQL med:

> ERROR 1093 (HY000): You can't specify target table 'orders' for update in FROM
> clause

Två sätt att kringgå felet:

DELETE FROM orders 
WHERE order_id =
       ( SELECT maxo
         FROM  
           ( SELECT MAX(order_id) AS maxo
             FROM orders
           ) AS tmp
        )

eller:

DELETE FROM orders
ORDER BY order_id DESC
LIMIT 1