如何在 sql 的连接表中重命名包含计数 function 的列？

Question

I want to rename the Order_ID column as Orders. When I add 'AS Orders' after the order_ID in 3rd line, it displays this kind of error
ORA-00923: FROM keyword not found where expected
Do u guys have any idea on how to do that?

SELECT
    Rider_Name,
    COUNT(*) Order_ID 
FROM
    Rider r 
INNER JOIN
    Ordr o ON r.Rider_ID = o.Rider_ID
GROUP BY
    Rider_Name
HAVING
    COUNT(*) > 1
ORDER BY
    Order_ID 

Answer 1

Remove the old alias of Order_ID and add the new alias.

SELECT
    Rider_Name,
    COUNT(*) AS Orders
FROM
    Rider r 
INNER JOIN
    Ordr o ON r.Rider_ID = o.Rider_ID
GROUP BY
    Rider_Name
HAVING
    COUNT(*) > 1
ORDER BY
    Orders