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Parse or Query XML column with XMLNAMESPACES (xmlns namespace) – MSDN TSQL forum

January 15, 2016 Leave a comment

–> Question:

We have SQL audit information.
We would like to select XML column in some user friendly way.

CREATE TABLE [dbo].[audit](
	[server_instance_name] [NVARCHAR](128) NULL,
	[statement] [NVARCHAR](4000) NULL,
	[additional_information] XML NULL
)


INSERT INTO [dbo].[audit]([server_instance_name],[statement],[additional_information]) 
VALUES('srv1','sp_addlinkedsrvlogin','')

INSERT INTO [dbo].[audit]([server_instance_name],[statement],[additional_information]) 
VALUES('srv2','','<action_info xmlns="http://schemas.microsoft.com/sqlserver/2008/sqlaudit_data"><session><![CDATA[Audit$A]]></session><action>event enabled</action><startup_type>manual</startup_type><object><![CDATA[audit_event]]></object></action_info>')

SELECT * FROM [dbo].[audit]

Output of the XML column:

Required Output:

–> Answer:

;WITH XMLNAMESPACES('http://schemas.microsoft.com/sqlserver/2008/sqlaudit_data' as ns)
SELECT 
	 [server_instance_name]
	,[statement]
	,[additional_information]
	,t.c.value ('ns:session[1]', 'varchar(50)') AS session
	,t.c.value ('ns:action[1]', 'varchar(50)') AS action
	,t.c.value ('ns:startup_type[1]', 'varchar(50)') AS startup_type
	,t.c.value ('ns:object[1]', 'varchar(50)') AS object
FROM [audit] as a
OUTER APPLY a.additional_information.nodes('//ns:action_info') as t(c)
GO

-- OR -- 

;WITH XMLNAMESPACES(DEFAULT 'http://schemas.microsoft.com/sqlserver/2008/sqlaudit_data')
SELECT 
	 [server_instance_name]
	,[statement]
	,t.c.value ('session[1]', 'varchar(50)') AS session
	,t.c.value ('action[1]', 'varchar(50)') AS action
	,t.c.value ('startup_type[1]', 'varchar(50)') AS startup_type
	,t.c.value ('object[1]', 'varchar(50)') AS object
FROM [audit] as a
OUTER APPLY a.additional_information.nodes('//action_info') as t(c)
GO

Drop table finally

DROP TABLE [audit]
GO

Ref link.

Categories: SQL Server Questions, XML Tags: MSDN TSQL forum, Parse XML, Query XML Column, XML SQL

Reading XML data in SQL Server – MSDN TSQL forum

May 26, 2015 Leave a comment

–> Question:

I have a table with a column with data type XML.

I don’t know the contents of the XML structure etc and I need to extract it

Please suggest.

–> My Answer:

Check these blog posts on how to query and work with XML data in SQL:

– Convert a table to XML and back to tabular format

– Query XML data in tabulat format

– Query Nested XML

– Using APPLY operator

– Read XML from a file

– XML with Namespaces

– Export XML to a file

– All XML posts

Ref Link.

Categories: SQL Server Questions, XML Tags: MSDN TSQL forum, XML SQL

Export XML column data to a file.xml

April 13, 2015 5 comments

There are times when you want to export XML data stored in Table’s columns to xml files for some purpose.

Here is a small hands on script that uses BCP command with QueryOut option to export data from SQL Server to file system:

USE [AdventureWorks2012]
GO

-- Save XML records to a file:
DECLARE @fileName VARCHAR(50)

DECLARE @sqlStr VARCHAR(1000)
DECLARE @sqlCmd VARCHAR(1000)

SET @fileName = 'D:\SQL_Queries\PersonAdditionalContactInfo.xml'
SET @sqlStr = 'select TOP 1 AdditionalContactInfo from AdventureWorks2012.Person.Person where AdditionalContactInfo IS NOT NULL'

SET @sqlCmd = 'bcp "' + @sqlStr + '" queryout ' + @fileName + ' -w -T'

EXEC xp_cmdshell @sqlCmd

Output:

NULL
Starting copy...
NULL
1 rows copied.
Network packet size (bytes): 4096
Clock Time (ms.) Total     : 140    Average : (7.14 rows per sec.)
NULL

If you have to extract XMLs stored in all the rows then you can iterate through all the rows one by one by using a WHILE loop or a CURSOR and extract data in separate files. You can provide unique names to your files dynamically by tweaking the above code.

Categories: XML Tags: BCP, BCP QUERYOUT, Export XML, QueryOut, XML

Convert XML to Columns – MSDN TSQL forum

July 13, 2013 Leave a comment

–> Question:

Below is the XML that i need to covert into columns please help, XML is coming from column name called “DESC” table name is “rawXML”

Columns: USER id, US_USERID, US_PASSWORD, US_SHORT, FIRST, LAST, US_LAST_PASSWORD_UPDATE

<USER id="05100">

 <US_USERID>YU</US_USERID>

  <US_PASSWORD>4026531934</US_PASSWORD>

  <US_SHORT>yu</US_SHORT>

  <US_XPN>

    <FIRST>Yehuda</FIRST>

    <LAST>Unger</LAST>

  </US_XPN>

  <US_LAST_PASSWORD_UPDATE>2006-01-19T16:10</US_LAST_PASSWORD_UPDATE>
</USER>

–>My Answer:

Check the query below:

declare @xml xml
set @xml = '<USER id="05100">

 <US_USERID>YU</US_USERID>

  <US_PASSWORD>4026531934</US_PASSWORD>

  <US_SHORT>yu</US_SHORT>

  <US_XPN>

    <FIRST>Yehuda</FIRST>

    <LAST>Unger</LAST>

  </US_XPN>

  <US_LAST_PASSWORD_UPDATE>2006-01-19T16:10</US_LAST_PASSWORD_UPDATE>
</USER>'

select 
	t.c.value('../@id[1]', 'varchar(10)') as [USER],
	t.c.value('../US_USERID[1]', 'varchar(10)') as [US_USERID],
	t.c.value('../US_PASSWORD[1]', 'varchar(10)') as [US_PASSWORD],
	t.c.value('../US_SHORT[1]', 'varchar(10)') as [US_SHORT],
	t.c.value('./FIRST[1]', 'varchar(10)') as [FIRST],
	t.c.value('./LAST[1]', 'varchar(10)') as [LAST],
	t.c.value('../US_LAST_PASSWORD_UPDATE[1]', 'varchar(10)') as [US_LAST_PASSWORD_UPDATE]
from @xml.nodes('//USER/US_XPN') as t(c)

Ref Link.

Categories: SQL Server Questions, XML Tags: MSDN TSQL forum, XML SQL

XML to Table – MSDN TSQL forum

February 28, 2013 Leave a comment

–>Question:

I’m using sql server 2000 and here is my target table:

CREATE TABLE #SampleTable
(
    Number varchar(100),
    StartNum int
)

I want to parse the XML and insert into the above table:

<activateNumber>
         <!--You may enter ANY elements at this point-->
         <number>1234</number>
         <StaartNumbers>
            <StartNum>234</StartNum>
         </StaartNumbers>
</activateNumber>

–> My Answer:

Check the code below:

CREATE TABLE #SampleTable
(
    Number varchar(100),
    StartNum int
)

DECLARE @xml XML = '<activateNumber>
         <!--You may enter ANY elements at this point-->
         <number>1234</number>
         <StaartNumbers>
            <StartNum>234</StartNum>
         </StaartNumbers>
</activateNumber>'

DECLARE @iDoc int
EXEC sp_xml_preparedocument @iDoc output, @xml

INSERT INTO #SampleTable
SELECT 
	number,
	StartNum
FROM OPENXML(@iDoc,'/activateNumber/StaartNumbers',2)
WITH (number INT '../number[1]', 
		StartNum INT 'StartNum[1]')

EXEC sp_xml_removedocument @iDoc

Ref Link.

Categories: SQL Server Questions, XML Tags: MSDN TSQL forum, XML SQL

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