INSERT-OUTPUT 包括来自其他表的列 [英] INSERT-OUTPUT including column from other table

问题描述

我有一个需要插入三个不同表的存储过程，但我需要获取从一个输入生成的 ID 并使用它插入到下一个表中.我熟悉 INSERT-OUTPUT 构造，但我不确定如何在这种特殊情况下使用它.

I have a stored procedure that needs to insert into three different tables, but I need to get the ID generated from the one input and use that to insert into the next table. I'm familiar with the INSERT-OUTPUT construct, but I'm not sure how to go about using it in this particular case.

DECLARE @guids TABLE ( [GUID] UNIQUEIDENTIFIER );
DECLARE @contacts TABLE ( [ContactID] INT, [GUID] UNIQUEIDENTIFIER );
DECLARE @mappings TABLE ( [TargetID] INT, [GUID] UNIQUEIDENTIFIER );

INSERT @guids ( [GUID] ) ...

INSERT [Contacts] ( [FirstName], [LastName], [ModifiedDate] )
OUTPUT [inserted].[ContactID], g.[GUID]
INTO @contacts
SELECT [First_Name], [Last_Name], GETDATE()
FROM [SourceTable] s
JOIN @guids g ON s.[GUID] = g.[GUID]

INSERT [TargetTable] ( [ContactID], [License], [CreatedDate], [ModifiedDate] )
OUTPUT [inserted].[TargetID], c.[GUID]
INTO @mappings
SELECT c.[ContactID], [License], [CreatedDate], [CreatedDate]
FROM [SourceTable] s
JOIN @contacts c ON s.[GUID] = c.[GUID] 

INSERT [Mappings] ( [TargetID], [SourceGUID] )
SELECT [TargetID], [GUID]
FROM @mappings

但我收到以下错误:

多部分标识符g.GUID"无法绑定.

The multi-part identifier "g.GUID" could not be bound.

多部分标识符c.GUID"无法绑定.

The multi-part identifier "c.GUID" could not be bound.

如果我改用 s.GUID，我会得到类似的错误.是否可以在 OUTPUT 子句中进行某种连接?

I'll get similar errors if I use s.GUID instead. Is it possible to do a kind of join in the OUTPUT clause?

推荐答案

我不确定这是否是最佳选择，但您似乎可以使用 MERGE 来解决这个问题:

I'm not sure if that is the best option, but it seems you can do the trick using MERGE :

MERGE [Contacts]  trgt
USING 
(  
  SELECT [First_Name], [Last_Name], g.[GUID] as [GUID]
  FROM [SourceTable] s
  JOIN @guids g ON s.[GUID] = g.[GUID]
)src ON (1=0)
WHEN NOT MATCHED THEN INSERT ( [FirstName], [LastName], [ModifiedDate] )
 VALUES (src.[First_Name],src.[Last_Name], GETDATE())
OUTPUT [inserted].[ContactID], src.[GUID]
INTO @contacts

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