删除id最大的地方

Question

I would like to detele the row with the biggest order_id, I tried this:

DELETE FROM orders WHERE MAX(order_id)

But this is wrong? any other ideas?

Thank you for your time.

Answer 1

First idea (among many others that had exactly the same):

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

Unfortunately MySQL complains with:

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

Two ways to bypass the error:

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

or:

DELETE FROM orders
ORDER BY order_id DESC
LIMIT 1 

Answer 2

For MySQL, this would be easiest:

DELETE FROM orders
ORDER BY order_id DESC
LIMIT 1;

You can't do the subquery trick that several other people have answered, because MySQL doesn't like it if you select from a table and update/delete from it in the same query.

Answer 3

you can try:

DELETE FROM orders where order_id = (select max(order_id) from orders)

Answer 4

try a subquery.

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

Answer 5

Try:

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