將自定義對象列表傳遞給SQL Server存儲過程

Question

我希望通過一個存儲過程調用傳遞自定義對象列表。 這是對象

 public class OGFormResponse
{
    public string Response {get; set;}
    public OGFormLabelVO FormLabel {get; set;}
}
    public class OGFormLabelVO
{
    public int OGFormLabelKey {get; set;}
    public string FormType {get; set;}
    public string LabelText {get; set;}
    public string ControlName {get; set;}
    public string DisplayStatus {get; set;}
    public string LabelType = {get; set;}
    public bool IsActive {get; set;}
    public string LabelParentControlName {get; set;}
}

這是數據庫關系

CREATE TABLE [dbo].[OGFormLabels](
[OGFormLabelKey] [int] IDENTITY(1,1) NOT NULL,
[OGFLText] [nvarchar](max) NULL,
[OGFLControlName] [nvarchar](50) NOT NULL,
[OGFLIsActive] [bit] NOT NULL,
[OGFLDisplayStatusKey] [int] NOT NULL,
[OGFLFormTypeKey] [int] NOT NULL,
[OGFLLabelTypeKey] [int] NOT NULL,
[OGFLParentKey] [int] NULL,
[OGFLBeginDate] [datetime] NOT NULL,
[OGFLBeginUser] [varchar](40) NOT NULL,
[OGFLUpdateDate] [datetime] NOT NULL,
[OGFLUpdateUser] [varchar](40) NOT NULL,
CONSTRAINT [PK_OGFormLabel] PRIMARY KEY CLUSTERED 
(
[OGFormLabelKey] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF,       ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO

SET ANSI_PADDING OFF
GO

ALTER TABLE [dbo].[OGFormLabels] ADD  CONSTRAINT [DF_OGFormLabel_OGFLBeginDate]  DEFAULT (getdate()) FOR [OGFLBeginDate]
GO

ALTER TABLE [dbo].[OGFormLabels] ADD  CONSTRAINT [DF_OGFormLabel_OGFLBeginUser]  DEFAULT ('dbo') FOR [OGFLBeginUser]
GO

ALTER TABLE [dbo].[OGFormLabels] ADD  CONSTRAINT [DF_OGFormLabel_OGFLUpdateDate]  DEFAULT (getdate()) FOR [OGFLUpdateDate]
GO

ALTER TABLE [dbo].[OGFormLabels] ADD  CONSTRAINT [DF_OGFormLabel_OGFLUpdateUser]  DEFAULT ('dbo') FOR [OGFLUpdateUser]
GO

ALTER TABLE [dbo].[OGFormLabels]  WITH CHECK ADD  CONSTRAINT [FK_OGFormLabel_OGFormStatus] FOREIGN KEY([OGFLFormTypeKey])
REFERENCES [dbo].[OGDisplayStatus] ([OGDisplayStatusKey])
GO

ALTER TABLE [dbo].[OGFormLabels] CHECK CONSTRAINT [FK_OGFormLabel_OGFormStatus]
GO

ALTER TABLE [dbo].[OGFormLabels]  WITH CHECK ADD  CONSTRAINT [FK_OGFormLabel_OGFormType] FOREIGN KEY([OGFLFormTypeKey])
REFERENCES [dbo].[OGFormType] ([OGFormTypeKey])
GO

ALTER TABLE [dbo].[OGFormLabels] CHECK CONSTRAINT [FK_OGFormLabel_OGFormType]
GO

ALTER TABLE [dbo].[OGFormLabels]  WITH CHECK ADD  CONSTRAINT [FK_OGFormLabel_OGLabelType] FOREIGN KEY([OGFLLabelTypeKey])
REFERENCES [dbo].[OGLabelType] ([OGLabelTypeKey])
GO

ALTER TABLE [dbo].[OGFormLabels] CHECK CONSTRAINT [FK_OGFormLabel_OGLabelType]
GO


CREATE TABLE [dbo].[OGFormResponses](
[OGFormResponseKey] [int] IDENTITY(1,1) NOT NULL,
[OGRFormKey] [int] NOT NULL,
[OGRFormLabelKey] [int] NOT NULL,
[OGRResponse] [nvarchar](max) NOT NULL,
[OGRBeginDate] [datetime] NOT NULL,
[OGRBeginUser] [varchar](40) NOT NULL,
[OGRUpdateDate] [datetime] NOT NULL,
[OGRUpdateUser] [varchar](40) NOT NULL,
CONSTRAINT [PK_OGFormResponse] PRIMARY KEY CLUSTERED 
(
[OGFormResponseKey] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO

SET ANSI_PADDING OFF
GO

ALTER TABLE [dbo].[OGFormResponses] ADD  CONSTRAINT [DF_OGFormResponse_OGRBeginDate]  DEFAULT (getdate()) FOR [OGRBeginDate]
GO

ALTER TABLE [dbo].[OGFormResponses] ADD  CONSTRAINT [DF_OGFormResponse_OGRBeginUser]  DEFAULT ('dbo') FOR [OGRBeginUser]
GO

ALTER TABLE [dbo].[OGFormResponses] ADD  CONSTRAINT [DF_OGFormResponse_OGRUpdateDate]  DEFAULT (getdate()) FOR [OGRUpdateDate]
GO

ALTER TABLE [dbo].[OGFormResponses] ADD  CONSTRAINT [DF_OGFormResponse_OGRUpdateUser]  DEFAULT ('dbo') FOR [OGRUpdateUser]
GO

ALTER TABLE [dbo].[OGFormResponses]  WITH CHECK ADD  CONSTRAINT [FK_OGFormResponse_OGForm] FOREIGN KEY([OGRFormKey])
REFERENCES [dbo].[OGForm] ([OGFormKey])
GO

ALTER TABLE [dbo].[OGFormResponses] CHECK CONSTRAINT [FK_OGFormResponse_OGForm]
GO

ALTER TABLE [dbo].[OGFormResponses]  WITH CHECK ADD  CONSTRAINT [FK_OGFormResponse_OGFormLabel] FOREIGN KEY([OGRFormLabelKey])
REFERENCES [dbo].[OGFormLabels] ([OGFormLabelKey])
GO

ALTER TABLE [dbo].[OGFormResponses] CHECK CONSTRAINT [FK_OGFormResponse_OGFormLabel]
GO

所以基本上，OGFormResponseVO與OGFormLabelVO有一對一的關系。 我希望能夠通過存儲過程調用將OGFormResponseVO列表插入到數據庫中。 我查看了表值參數，你不能將Type的Type作為另一種類型。 有沒有解決方法，或者我最好只是將子對象的所有屬性作為單獨的參數傳遞，或者是否有更好的方法。 我必須使用SP，因為它是較大項目的一部分，因此其他數據模型選項不可用。

Answer 1

正如我在評論中所說，你可以用結構化參數來做到這一點。

您只需要重新建模一下，這樣就可以將這些參數映射到表值參數（從DataTable開始）。

假設您要在同一個go中插入表單標簽和相關響應，則需要在它們之間定義臨時關系。 另外，注意到表中的列比模型多，所以我認為你縮小了最初的例子。

對應於類OGFormResponse的結構化參數需要具有以下字段：

CREATE TYPE [dbo].[OGFormResponse] AS TABLE(
  [Response] VARCHAR(256),
  [SequenceId] INT --This is just a temporary sequence (1..N) you can use to map to form labels (see below)
)

OGFormLabelVO的表值類型可以1：1映射到C＃類，再加上一個額外的列 - SequenceId 。

SP可能看起來像這樣：

CREATE PROCEDURE [dbo].[SaveFormStuff] 
    @FormResponses AS [dbo].[OGFormResponse] READONLY,
    @FormLabels AS [dbo].[OGFormLabelVO] READONLY
AS

   SET NOCOUNT ON;

   //This stores the PKs of the inserted form labels
   DECLARE @InsertedFormLabels AS TABLE ( 
     Id INT NOT NULL,
     SequenceId INT NOT NULL
   )

   INSERT INTO [dbo].[OGFormLabels]
     (...)
   SELECT (...) 
   FROM @FormLabels FL
   OUTPUT inserted.OGFormLabelKey, FL.SequenceId INTO @InsertedFormLabels

   -- Now you have the newly inserted form label ID mapped to sequence IDs
   -- Time to insert responses 

   INSERT INTO [dbo].[OGFormResponses]
     (...)
   SELECT (...), 
          OGRFormLabelKey = IFL.Id 
   FROM @FormResponses FR
   INNER JOIN @InsertedFormLabels IFL
     ON IFL.SequenceId = FR.SequenceId  
END