为什么我得到的二进制或字符串数​​据将被截断

Question

我有下面的查询，其中我插入到临时表中，当我尝试运行查询sql是抛出二进制或字符串数​​据将被截断。但实际上，我的数据在列PhoneModel的定义nvarchar(400)的范围内。

CREATE TABLE #orders 
(
    quoteHeaderId INT, 
    PhoneModel nvarchar(400) 
) 

INSERT INTO #orders(quoteHeaderId, PhoneModel) 
SELECT qh.QuoteHeaderId, 
    (Select ph.ModelName + ',' 
    FROM t_handsetQuote h2 
     INNER JOIN t_PhoneAudit t1 on t1.PhoneAuditId = h2.QuotePhoneAuditId 
     INNER JOIN t_phoneModel ph on t1.phoneModelid = ph.phoneModelid             
    where qh.QuoteHeaderId = h2.QuoteHeaderId 
    FOR XML PATH('') 
    ) AS PhoneModel 
FROM t_QuoteHeader qh 
INNER JOIN t_handsetQuote h on qh.QuoteHeaderId = h.QuoteHeaderId 
INNER JOIN t_CustomerAdditionalInformation ch on qh.CustomerId = ch.CustomerId 
and keyName ='SendUpdatesByEmail' AND ch.value = 'yes' 

Answer 1

我认为nvarchar(400)无法处理您插入到它的字符串的长度。

如何更改，恕不insert语句您PhoneModel nvarchar(400)到PhoneModel varchar(MAX)

Answer 2

运行你的选择查询，并检查ph.ModelName + ','的len。它可以通过记录来记录不同。

运行您的查询并提供反馈。看到发生了什么导致了问题

Answer 3

最简单的办法是使用SELECT ... INTO：

SELECT qh.QuoteHeaderId, 
    (Select ph.ModelName + ',' 
    FROM t_handsetQuote h2 
     INNER JOIN t_PhoneAudit t1 on t1.PhoneAuditId = h2.QuotePhoneAuditId 
     INNER JOIN t_phoneModel ph on t1.phoneModelid = ph.phoneModelid             
    where qh.QuoteHeaderId = h2.QuoteHeaderId 
    FOR XML PATH('') 
    ) AS PhoneModel 
into #orders 
FROM t_QuoteHeader qh 
INNER JOIN t_handsetQuote h on qh.QuoteHeaderId = h.QuoteHeaderId 
INNER JOIN t_CustomerAdditionalInformation ch on qh.CustomerId = ch.CustomerId 
and keyName ='SendUpdatesByEmail' AND ch.value = 'yes' 

，然后通过订购LEN（PhoneModel）递减检查所创建的表