How would you write a query to get the previous order date for each customer?

[saikoneru1997]

select customerid,order,orderdate,lag(orderdate) over(partition by customerid order by orderdate) as preveous_order from order

Can you write a query to get the next order date for each customer?"

select customerid,order,orderdate,lead(orderdate) over(partition by customerid order by orderdate) as last_order from order