ORA-00933与内部联接和"as"混淆 [英] ORA - 00933 confusion with inner join and "as"

问题描述

我有这样一个查询，要使用inner join从两个表中获取数据，但是在"as"下出现带星号的错误SQL command not properly ended:

I have this query of getting data from two tables using an inner join, but I get the error SQL command not properly ended with an asterix under "as":

select P.carrier_id, O.order_id, O.aircraft_id, O.quantity

from orderline AS O

inner join purchaseorder AS P

on O.order_id = P.carrier_id;

the error:

from orderline AS O ( with an asterix under AS)


Error at line 2
Ora-00933: SQL command not properly ended.

关于这一点，我认为AS不会成为问题，因为它只是引用别名，但是我对为什么会出现这样的情况感到困惑.

In regards to this I thought that AS wouldn't be an issue as it's just referencing an alias, but I'm so confused as to why this is coming up.

推荐答案

只需删除AS关键字

select 
   P.carrier_id, 
   O.order_id, 
   O.aircraft_id, 
   O.quantity
from 
   orderline O
inner join purchaseorder P
   on O.order_id = P.carrier_id;

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