3

我现在一直在使用这个查询，但我很难过。我是 SQL 新手，我不知道为什么会出现错误：

SELECT customer_number, first_name_initial, last_name,serve_address_1, serve_address_2, serve_city, serve_state, route_serve_zip_code, phone_number1, referral_code
FROM customer_master 
INNER JOIN route_detail 
ON m.customer_number=r.customer_number
WHERE (referral_code='american')

错误

消息 209，级别 16，状态 1，第 1 行不明确的列名称“customer_number”。消息 209，级别 16，状态 1，第 1 行不明确的列名称“phone_number1”。

我尝试按如下方式附加列，但也没有运气。任何帮助将不胜感激！

SELECT customer_number, first_name_initial, last_name,serve_address_1, serve_address_2, serve_city, serve_state, route_serve_zip_code, phone_number1, referral_code
FROM customer_master m
INNER JOIN route_detail r
ON m.customer_number=r.customer_number
WHERE (referral_code='american')
4

1 回答 1

6

问题在于这条线

SELECT customer_number

您需要指定要从哪个表中获取 customer_number，如下所示：

SELECT r.customer_number

或者

SELECT m.customer_number

因此，您的最终查询将如下所示：

SELECT r.customer_number, --or m.customer_number
first_name_initial, last_name,serve_address_1, serve_address_2, serve_city, serve_state, route_serve_zip_code, phone_number1, referral_code
FROM customer_master 
INNER JOIN route_detail 
ON m.customer_number=r.customer_number
WHERE (referral_code='american')
于 2015-03-16T18:50:21.410 回答