Microsoft Knowledge Base Article
This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved.
Terms
of Use |
Trademarks
Article ID: 914596 - Last Review: November 22, 2007 - Revision: 2.4
The incorrect type for the union element is returned when you run XQuery against XML data that contains the union element in SQL Server 2005
Consider the following scenario. You specify the value of the
xsi:type attribute of a
union element. Then, you use XQuery to query against the XML data that contains the
union element. In this scenario, the query returns the incorrect type for the
union element.
This problem occurs because the value of the
xsi:type attribute of the
union element will be the primitive base type of the value. During XML serialization, the primitive base type that is actually set for the value of the
xsi:type attribute is returned.
Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
913089Â
(http://kbalertz.com/Feedback.aspx?kbNumber=913089/
)
How to obtain the latest service pack for SQL Server 2005
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft SQL Server 2005 Service Pack 1.
Steps to reproduce the problem
- Open SQL Server Management Studio, and then connect to the instance of SQL Server 2005.
- Click New Query on the toolbar.
- Paste the following code in the query editor, and then press F5.
use master
use master
if (db_id('MyDatabase') is not null)
drop database MyDatabase
go
create database MyDatabase
go
use MyDatabase
go
CREATE XML SCHEMA COLLECTION unionType AS N'
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="MyDatabase" xmlns:tn="MyDatabase">
<xs:simpleType name="myInt">
<xs:restriction base="xs:integer">
<xs:maxInclusive value="1000"/>
</xs:restriction>
</xs:simpleType>
<xs:element name="s">
<xs:simpleType>
<xs:union memberTypes="xs:double tn:myInt"/>
</xs:simpleType>
</xs:element>
</xs:schema>'
go
CREATE TABLE testTable ( PK int identity primary key, xmlCol XML(unionType))
go
insert into testTable values ('<tn:s xmlns:tn="MyDatabase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="tn:myInt">123</tn:s>')
select xmlCol from testTable
go
SELECT xmlCol.query('/') FROM testTable
go<tn:s xmlns:tn="MyDatabase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="tn:myInt">123</tn:s>
<tn:s xmlns:tn="MyDatabase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="tn:myInt">123</tn:s>
<tn:s xmlns:tn="MyDatabase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="tn:myInt">123</tn:s>
<tn:s xmlns:tn="MyDatabase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p1="http://www.w3.org/2001/XMLSchema" xsi:type="p1:decimal">123</tn:s>
APPLIES TO
- Microsoft SQL Server 2005 Standard Edition
- Microsoft SQL Server 2005 Enterprise Edition
- Microsoft SQL Server 2005 Developer Edition
- Microsoft SQL Server 2005 Workgroup Edition
| kbsql2005sp1fix kbsql2005presp1fix kbsql2005xml kbexpertiseadvanced kbprb KB914596 |
Community Feedback System
Very often, it takes hours to solve a problem. Very often, you've looked high
and low, and have tried a lot of solutions. When you finally found it, chances
are, it was because someone else helped you. Here's your chance to give back.
Use our community feedback tool to let others know what worked for you and what
didn't.
Please also understand that the community feedback system is not warranted to be
correct, it's simply a system that we've built to let people try and help each
other. If something in a feedback response doesn't make sense to you, or you're
not comfortable making changes that the feedback talks about (like registry
edits), please consult a professional.
Thank you for using kbAlertz.com Feedback System.
-- Scott Cate