我有一个插入多个从属表的过程（在案例记录存在时更新）。我输入参数为逗号分隔字符串，我正在表中读取。
第一次插入后，我在另一个表变量中获得了InsertedIds。 我正在努力如何在第二张表中插入。我有第二个表的输入参数：
Declare @IdsToBeUpdated table (primary key identity pkey, id int) -- values are 1,-1,3,-1
Declare @CommentsTobeInserted table( primary key identity pkey, comment varchar (max)) -- values are 'com1', 'com2', 'com3'
@IdsToBeUpdated中的 -1输入描述了所有输入表中相应行的插入，而-1以外的值描述了所有其他表（@CommentsTobeInserted表中该pkey值的记录，如示例中所示）必须更新。
因此，在第一次插入后，我得到了具有-1值的行的插入ID。 @InsertedIds = 4,5
所以我的Ids列表逻辑上会变成...... 1,4,3,5。
但我现在卡住了如何分别在第二个表中插入/更新记录。 第二个表格如下：
Pkey Primary key identity, commentIds(coming from inserted ids and @IdsToBeUpdated), comments.
我在@CommentsTobeInserted中添加了一个InsertedIds列。如果我可以用正确的行填充右侧InsertedId，我想我可以在第二个表中进行插入/更新。如果值是新列中的Id，我会插入，如果它为null，我将使用@IdsToBeUpdated表执行更新。 但目前我的方法都没有奏效。我是SQL的新手。任何帮助都将受到高度赞赏。
以下是脚本的一部分，以便更好地理解。我也添加了第一个插入脚本。
USE [Demo]
GO
/****** Object: StoredProcedure [dbo].[USP_NewRequest_Insert] Script Date: 2/11/2016 2:50:34 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[USP_NewRequest_Insert]
-----------------------------------
--------- SomeInput parameters
---------for first insertion omitted
--------------------------------
@IdsToBeUpdated varchar(MAX), --Values are 23|-1|32|-1|-1
@CommentList AS VARCHAR(MAX), --Values 'C2'|'C4'|'C5'|'C6'|'C7'
@MCodeList VARCHAR(MAX), --Values 'M2'|'M4'|'M5'|'M6'|'M7'
@CustomerIdsList VARCHAR(MAX), ----Values 'Cust2'|'Cust4'|'Cust5'|'Cust6'|'Cust7'
@ReturnValue AS INT OUTPUT,
------------------Data is in the order it has to be inserted.. where IDs exist in @IdsToBeUpdated, updation would be done. For -1 values, insertion.
AS
BEGIN
BEGIN TRANSACTION
--------------------------Split input strings aand insert in Table variable----------------------------
declare @MCodes Table (pkey int primary key identity, MCode varchar(20))
insert into @MCodes select s.Item from [dbo].UDF_SplitString(@MCodeList, '|') s
declare @CusCodes Table (pkey int primary key identity, CusCode varchar(200))
insert into @CusCodes select s.Item from [dbo].UDF_SplitString(@CustomerIdsList, '|') s
declare @ReqDetailsIds Table (pkey int primary key identity, Id Int)
insert into @ReqDetailsIds select Convert(INT,RTRIM(LTRIM(s.Item))) from [dbo].UDF_SplitString(@IdsToBeUpdated, '|') s
where s.Item is not null and RTRIM(LTRIM(s.Item)) <>''
declare @ProductComments Table (pkey int primary key identity, Comment Varchar(max), insertedId int null)
insert into @ProductComments(Comment) select s.Item from [dbo].UDF_SplitString(@CommentList, '|') s
DECLARE @intErrorCode int;
------------------------------------------------------------------------------------------------------------
-----------------First Insertion which returns inserted IDs for 2nd insertion
------------------------------------------------------------------------------------------------------------------
---Insert/Update product details in [RequestDetails]
Declare @InsertedIDList Table (pkey int primary key identity, ID int); --------Table to read inserted Ids. Used in query below
-----------------------Insert query in case Detail id = -1
INSERT INTO [dbo].[RequestDetails]
[MCode]
,[CustomerIds]
,[ExpectedVolume]------Some parameters coming for first insertion in input
,[StatusCode])
Output INSERTED.ReqDetailId Into @InsertedIDList(ID)
SELECT A.MCode, B.CusCode, E.Vol,1
FROM @MCodes A
JOIN @CusCodes B ON B.pkey = A.pkey
JOIN @ExpectedVols E ON E.pkey = A.pkey
JOIN @ReqDetailsIds G ON G.pkey = A.pkey
WHERE G.Id = -1 --If id = -1, insert
---------------------------Update Query for rest records
UPDATE [dbo].[RequestDetails]
SET [MCode] = upd.MCode
,[CustomerIds] = upd.CusCode
,[ExpectedVolume] = upd.ExVol
,[StatusCode] = 1
FROM(
SELECT A.MCode, B.CusCode, E.ExVol, G.Id
FROM @MCodes A
JOIN @CusCodes B ON B.pkey = A.pkey
JOIN @ExpectedVols E ON E.pkey = A.pkey
JOIN @ReqDetailsIds G ON G.pkey = A.pkey
WHERE G.Id <> -1
) upd
WHERE upd.Id = dbo.RequestDetails.ReqDetailId
IF(@@Error<>0)
BEGIN
SET @intErrorCode = @@Error
GOTO ERROR
END
ELSE
BEGIN
SET @ReturnValue=1
END
---------------------------------------------------------------------------
----------------------------Now similarly I have to do insert/update in Comments Table. But
----------------------------Comments table has RequestDetails Id column as foreign key. So
----------------------------now the challange is to add the rows with Inserted ID where value was = -1
----------------------------in input. We have got the IDs corresponding to -1 values from above insertion
----------------------------in the @InsertedIDList Table variable
-----------------------------------------------------------------------------------------
----------------------------Following is what I have tried so far. But I am not able to insert
----------------------------correct InsertedId against correct record.
----------------------------------------------------------------------------------------
-----------------------Here I tried to insert the new generated ids against corresponding comments in table variable.
-----------------------So that I can perform insert where value is not null. As NULL would be inserted where new ID has not been created
-----------------------and corresponding updated ID exists in input (Values not equal to -1)
-------------------------------------------------------------------------------------------------
Update @ProductComments set insertedId = i.ID from ---------This query is not working
(select A.pkey, B.id as detailId, row_number() over (order by (select 0)) as row_num from
@ProductComments A
JOIN @ReqDetailsIds B ON B.pkey = A.pkey) as mappedNewIds right join
@InsertedIDList i on i.pkey = mappedNewIds.row_num
where mappedNewIds.pkey = [@ProductComments].pkey
----Insert in CommentsTable for New Comments against request
---------------------------------
INSERT INTO [dbo].CommentsTable
( ReqDetailId, Comments, CreatedOn )
SELECT A.insertedId, A.Comment, GETDATE()
FROM @ProductComments A
where A.insertedId is not null
-----Update Query
------------------------------------------------------------------------------------------
UPDATE [dbo].[CommentsTable]
SET [ReqDetailId] = upd.Id
,[Comments] = upd.Comment
,[CreatedOn] = GetDate()
FROM(
SELECT A.Comment, B.Id
FROM @ProductComments A
JOIN @ReqDetailsIds B ON B.pkey = A.pkey
WHERE A.insertedId is not null
) upd
WHERE upd.Id = dbo.CommentsTable.ReqDetailId
END
select * from CommentsTable;
---------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------
IF(@@Error<>0)
BEGIN
SET @intErrorCode = @@Error
GOTO ERROR
END
ELSE
BEGIN
SET @ReturnValue=1
END
COMMIT TRANSACTION
ERROR:
IF (@intErrorCode <> 0) BEGIN
SET @ReturnValue = 0;
ROLLBACK TRANSACTION
END
END