[英]SQL Server: Multiple Output Clauses
I have two tables, Table_1
and Table_2
. 我有两个表,
Table_1
和Table_2
。
Table_1
has columns PK
(autoincrementing int
) and Value
( nchar(10)
). Table_1
包含列PK
(自动增量int
)和Value
( nchar(10)
)。
Table_2
has FK
( int
), Key
( nchar(10)
) and Value
( nchar(10)
). Table_2
有FK
( int
), Key
( nchar(10)
)和Value
( nchar(10)
)。
That is to say, Table_1
is a table of data and Table_2
is a key-value store where one row in Table_1
may correspond to 0, 1 or more keys and values in Table_2
. 也就是说,
Table_1
是数据的一个表,并Table_2
是一个键值存储其中在一个行Table_1
可以对应于0,1或更多个键和值在Table_2
。
I'd like to write code that programmatically builds up a query that inserts one row into Table_1
and a variable number of rows into Table_2
using the primary key from Table_1
. 我想编写代码,以编程方式构建一个查询,使用
Table_2
中的主键将一行插入Table_1
,将可变数量的行插入Table_1
。
I can do it easy with one row: 我可以用一行轻松完成:
INSERT INTO Table_1 ([Value])
OUTPUT INSERTED.PK, 'Test1Key', 'Test1Val' INTO Table_2 (FK, [Key], [Value])
VALUES ('Test')
But SQL doesn't seem to like the idea of having multiple rows. 但SQL似乎不喜欢有多行的想法。 This fails:
这失败了:
INSERT INTO Table_1 ([Value])
OUTPUT INSERTED.PK, 'Test1Key', 'Test1Val' INTO Table_2 (FK, [Key], [Value])
OUTPUT INSERTED.PK, 'Test2Key', 'Test2Val' INTO Table_2 (FK, [Key], [Value])
OUTPUT INSERTED.PK, 'Test3Key', 'Test3Val' INTO Table_2 (FK, [Key], [Value])
VALUES ('Test')
Is there any way to make this work? 有没有办法让这项工作?
I had to put the code in answer, in comment it looks ugly... 我不得不把代码放在答案中,在评论中看起来很难看......
CREATE TABLE #Tmp(PK int, value nchar(10))
INSERT INTO Table_1 ([Value])
OUTPUT INSERTED.PK, inserted.[Value] INTO #Tmp
SELECT 'Test'
INSERT INTO Table_2 (FK, [Key], Value)
SELECT PK, 'Test1Key', 'Test1Val' FROM #Tmp
UNION ALL SELECT PK, 'Test2Key', 'Test2Val' FROM #Tmp
UNION ALL SELECT PK, 'Test3Key', 'Test3Val' FROM #Tmp
Btw, SQL Server won't let you do it all in one query without some ugly hack... 顺便说一句,SQL Server不会让你在一个查询中完成所有操作而没有一些丑陋的黑客...
尝试将INSERTED.PK
值放入参数,然后使用3 INSERT..VALUES
或1 INSERT..SELECT
语句插入表2。
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