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05.13.2008 at 05:33AM PDT, ID: 23397440
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How to use LINQ to import XML to database having a hierarchy

Asked by Dan-Aspitel in Language Integrated Query - LINQ

Tags: .NET LINQ

How can I use LINQ to read the XML and populate the database?

I have XML which contains data in a 1..n hierarchy.  The database has a foreign key relationship defined between the two tables.  

Here is a simple example with XML and a DB:
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<root>
  <Person>
    <Name>John</Name>
    <Asset>
      <Description>John's first asset</Description>
    </Asset>
    <Asset>
      <Description>John's second asset</Description>
    </Asset>
    <Asset>
      <Description>John's third asset</Description>
    </Asset>
  </Person>
  <Person>
    <Name>Mary</Name>
    <Asset>
      <Description>Mary's first asset</Description>
    </Asset>
    <Asset>
      <Description>Mary's second asset</Description>
    </Asset>
  </Person>
</root>
 
 
 
USE [mytestDB]
GO
/****** Object:  Table [dbo].[People] ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[People](
	[PersonID] [int] IDENTITY(1,1) NOT NULL,
	[Name] [nchar](50) NOT NULL,
 CONSTRAINT [PK_People] PRIMARY KEY CLUSTERED 
(
	[PersonID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
 
GO
/****** Object:  Table [dbo].[Assets] ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Assets](
	[AssetID] [int] IDENTITY(1,1) NOT NULL,
	[PersonID] [int] NOT NULL,
	[AssetDescription] [nchar](200) NOT NULL,
 CONSTRAINT [PK_Assets] PRIMARY KEY CLUSTERED 
(
	[AssetID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
 
GO
ALTER TABLE [dbo].[Assets]  WITH CHECK ADD  CONSTRAINT [FK_Assets_People] FOREIGN KEY([PersonID])
REFERENCES [dbo].[People] ([PersonID])
GO
ALTER TABLE [dbo].[Assets] CHECK CONSTRAINT [FK_Assets_People]
[+][-]05.13.2008 at 06:31PM PDT, ID: 21560576

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[+][-]05.13.2008 at 06:45PM PDT, ID: 21560630

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About this solution

Zone: Language Integrated Query - LINQ
Tags: .NET LINQ
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Solution Provided By: CarlVerret
Participating Experts: 2
Solution Grade: A
 
 
[+][-]06.07.2008 at 01:41AM PDT, ID: 21734757

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