How to write a SQL statement to generate XML like this
<ROOT>
<Production.Product>
<ProductID>1 </ProductID>
<Name>Adjustable Race</Name>
........
</Production.Product>
</ROOT>
Currently I am getting this with
SELECT * FROM Production.Product
FOR XML auto
Result is:
<ROOT>
<Production.Product ProductID="1" Name="Adjustable Race"
ProductNumber="AR-5381" MakeFlag="0" FinishedGoodsFlag="0"
SafetyStockLevel="1000" ReorderPoint="750" StandardCost="0.0000"
ListPrice="0.0000" DaysToManufacture="0" SellStartDate="1998-06-01T00:00:00"
rowguid="694215B7-08F7-4C0D-ACB1-D734BA44C0C8"
ModifiedDate="2004-03-11T10:01:36.827" />
One simple way would be to use:
SELECT *
FROM Production.Product
FOR XML AUTO, ELEMENTS
Then, your data should be stored in XML elements inside the <Production.Product> node.
If you need even more control, then you should look at the FOR XML PATH syntax - check out this MSDN article on What's new in FOR XML in SQL Server 2005 which explains the FOR XML PATH (among other new features).
Basically, with FOR XML PATH, you can control very easily how things are rendered - as elements or as attributes - something like:
SELECT
ProductID AS '#ProductID', -- rendered as attribute on XML node
Name, ProductNumber, -- all rendered as elements inside XML node
.....
FROM Production.Product
FOR XML PATH('NewProductNode') -- define a new name for the XML node
This would give you something like:
<NewProductNode ProductID="1">
<Name>Adjustabel Race</Name>
<ProductNumber>AR-5381</ProductNumber>
.....
</NewProductNode>
Related
I do have to replicate an XML file with SQL Server and I am now stumbling over the following structure inside the XML file and I don't know how to replicate that.
The structure looks like this at the moment for certain tags:
<ART_TAG1>
<UNMLIMITED/>
</ART_TAG1>
<ART_TAG2>
<ART_TAG3>
<Data_Entry/>
</ART_TAG3>
</ART_TAG2>
I am wondering if this is proper XML that the data inside (unlimited and Data_Entry) is enclosed with a closing XML tag. The XML validator https://www.w3schools.com/xml/xml_validator.asp is telling me this is correct. But now I am struggling with replicating that with Transact-SQL.
If I try to replicate that I can only come up with the following TSQL script, which obviously does not fully look like the original.
SELECT 'UNLIMITED' as 'ART_TAG1'
, 'Data_Entry' as 'ART_TAG2/ART_TAG3'
FOR XML PATH(''), ROOT('root')
<root>
<ART_TAG1>UNLIMITED</ART_TAG1>
<ART_TAG2>
<ART_TAG3>Data_Entry</ART_TAG3>
</ART_TAG2>
</root>
If I get this correctly, your question is:
How can I put my query to create those <SomeElement /> tags?
Look at this:
--This will create filled nodes
SELECT 'outer' AS [OuterNode/#attr]
,'inner' AS [OuterNode/InnerNode]
FOR XML PATH('row');
--The empty string is some kind of content
SELECT 'outer' AS [OuterNode/#attr]
,'' AS [OuterNode/InnerNode]
FOR XML PATH('row');
--the missing value (NULL) is omited by default
SELECT 'outer' AS [OuterNode/#attr]
,NULL AS [OuterNode/InnerNode]
FOR XML PATH('row');
--Now check what happens here:
--First XML has an empty element, while the second uses the self-closing element
DECLARE #xml1 XML=
N'<row>
<OuterNode attr="outer">
<InnerNode></InnerNode>
</OuterNode>
</row>';
DECLARE #xml2 XML=
N'<row>
<OuterNode attr="outer">
<InnerNode/>
</OuterNode>
</row>';
SELECT #xml1,#xml2;
The result is the same for both...
Some background: Semantically the empty element <element></element> is exactly the same as the self-closing element <element />. It should not make any difference, whether you use the one or the other. If your consumer cannot deal with this, it is a problem in the reading part.
Yes, you can force any content into XML on string level, but - as the example shows above - this is just a (dangerous) hack.
XML within T-SQL returns - by default - a missing node as NULL and an empty element as empty (depending on the datatype, and beware of the difference between an element and its text() node).
In short: This is nothing you should have to think about...
I have read dozens of posts and have tried numerous SQL queries to try and get this figured out. Sadly, I'm not a SQL expert (not even a novice) nor am I an XML expert. I understand basic queries from SQL, and understand XML tags, mostly.
I'm trying to query a database table, and have the data show a list of values from a column that contains XML. I'll give you an example of the data. I won't burden you with everything I have tried.
Here is an example of field inside of the column I need. So this is just one row, I would need to query the whole table to get all of the data I need.
When I select * from [table name] it returns hundreds of rows and when I double click in the column name of 'Document' on one row, I get the information I need.
It looks like this:
<code_set xmlns="">
<name>ExampleCodeTable</name>
<last_updated>2010-08-30T17:49:58.7919453Z</last_updated>
<code id="1" last_updated="2010-01-20T17:46:35.1658253-07:00"
start_date="1998-12-31T17:00:00-07:00"
end_date="9999-12-31T16:59:59.9999999-07:00">
<entry locale="en-US" name="T" description="Test1" />
</code>
<code id="2" last_updated="2010-01-20T17:46:35.1658253-07:00"
start_date="1998-12-31T17:00:00-07:00"
end_date="9999-12-31T16:59:59.9999999-07:00">
<entry locale="en-US" name="Z" description="Test2" />
</code>
<displayExpression>[Code] + ' - ' + [Description]</displayExpression>
<sortColumn>[Description]</sortColumn>
</code_set>
Ideally I would write it so it runs the query on the table and produces results like this:
Code Description
--------------------
(Data) (Data)
Any ideas? Is it even possible? The dozens of things I have tried that are always posted in stack, either return Nulls or fail.
Thanks for your help
Try something like this:
SELECT
CodeSetId = xc.value('#id', 'int'),
Description = xc.value('(entry/#description)[1]', 'varchar(50)')
FROM
dbo.YourTableNameHere
CROSS APPLY
YourXmlColumn.nodes('/code_set/code') AS XT(XC)
This basically uses the built-in XQuery to get an "in-memory" table (XT) with a single column (XC), each containing an XML fragment that represents each <code> node inside your <code_set> root node.
Once you have each of these XML fragments, you can use the .value() XQuery operator to "reach in" and grab some pieces of information from it, e.g. it's #id (attribute by the name of id), or the #description attribute on the contained <entry> subelement.
The following query will read the xml field in every row, then shred certain values into a tabular result set.
SELECT
-- get attribute [attribute name] from the parent node
parent.value('./#attribute name','varchar(max)') as ParentAttributeValue,
-- get the text value of the first child node
child.value('./text()', 'varchar(max)') as ChildNodeValueFromFirstChild,
-- get attribute attribute [attribute name] from the first child node
child.value('./#attribute name', 'varchar(max)') as ChildAttributeValueFromFirstChild
FROM
[table name]
CROSS APPLY
-- create a handle named parent that references that <parent node> in each row
[xml field name].nodes('//xpath to parent name') AS ParentName(parent)
CROSS APPLY
-- create a handle named child that references first <child node> in each row
parent.nodes('(xpath from parent/to child)[0]') AS FirstChildNode(child)
GO
Please provide the exact values you want to shred from the XML for a more precise answer.
I have an XML document that I'm working to build a schema for in order to bulk load these documents into a SQL Server table. The XML I'm focusing on looks like this:
<Coverage>
<CoverageCd>BI</CoverageCd>
<CoverageDesc>BI</CoverageDesc>
<Limit>
<FormatCurrencyAmt>
<Amt>30000.00</Amt>
</FormatCurrencyAmt>
<LimitAppliesToCd>PerPerson</LimitAppliesToCd>
</Limit>
<Limit>
<FormatCurrencyAmt>
<Amt>85000.00</Amt>
</FormatCurrencyAmt>
<LimitAppliesToCd>PerAcc</LimitAppliesToCd>
</Limit>
</Coverage>
<Coverage>
<CoverageCd>PD</CoverageCd>
<CoverageDesc>PD</CoverageDesc>
<Limit>
<FormatCurrencyAmt>
<Amt>50000.00</Amt>
</FormatCurrencyAmt>
<LimitAppliesToCd>Coverage</LimitAppliesToCd>
</Limit>
</Coverage>
Inside the Limit element, there's a child LimitAppliesToCd that I need to use to determine where the Amt element's value actually gets stored inside my table. Is this possible to do using the standard XML Bulk Load feature of SQL Server? Normally in XML I'd expect that the element would have an attribute containing the "PerPerson" or "PerAcc" information, but this standard we're using does not call for that.
If anyone has worked with the ACORD standard before, you might know what I'm working with here. Any help is greatly appreciated.
Don't know exactly what you are talking about, but this is a solution to get the information out of your XML.
Assumption: Your XML is already bulk-loaded into a declared variable #xml of type XML:
A CTE will pull the information out of your XML. The final query will then use PIVOT to put your data into the right column.
With a fitting table's structure the actual insert should be simple...
WITH DerivedTable AS
(
SELECT cov.value('CoverageCd[1]','varchar(max)') AS CoverageCd
,cov.value('CoverageDesc[1]','varchar(max)') AS CoverageDesc
,lim.value('(FormatCurrencyAmt/Amt)[1]','decimal(14,4)') AS Amt
,lim.value('LimitAppliesToCd[1]','varchar(max)') AS LimitAppliesToCd
FROM #xml.nodes('/root/Coverage') AS A(cov)
CROSS APPLY cov.nodes('Limit') AS B(lim)
)
SELECT p.*
FROM
(SELECT * FROM DerivedTable) AS tbl
PIVOT
(
MIN(Amt) FOR LimitAppliesToCD IN(PerPerson,PerAcc,Coverage)
) AS p
I have this query taken from the site www.SQLauthority.com:
DECLARE #MyXML XML
SET #MyXML = '<SampleXML>
<Colors>
<Color1>White</Color1>
<Color2>Blue</Color2>
<Color3>Black</Color3>
<Color4 Special="Light">Green</Color4>
<Color5>Red</Color5>
</Colors>
<Fruits>
<Fruits1>Apple</Fruits1>
<Fruits2>Pineapple</Fruits2>
<Fruits3>Grapes</Fruits3>
<Fruits4>Melon</Fruits4>
</Fruits>
</SampleXML>'
SELECT
a.b.value('Colors[1]/Color1[1]','varchar(10)') AS Color1,
a.b.value('Colors[1]/Color2[1]','varchar(10)') AS Color2,
a.b.value('Colors[1]/Color3[1]','varchar(10)') AS Color3,
a.b.value('Colors[1]/Color4[1]/#Special','varchar(10)')+' '+
+a.b.value('Colors[1]/Color4[1]','varchar(10)') AS Color4,
a.b.value('Colors[1]/Color5[1]','varchar(10)') AS Color5,
a.b.value('Fruits[1]/Fruits1[1]','varchar(10)') AS Fruits1,
a.b.value('Fruits[1]/Fruits2[1]','varchar(10)') AS Fruits2,
a.b.value('Fruits[1]/Fruits3[1]','varchar(10)') AS Fruits3,
a.b.value('Fruits[1]/Fruits4[1]','varchar(10)') AS Fruits4
FROM #MyXML.nodes('SampleXML') a(b)
I am not getting a better picture of how the nodes fetching from the xml data.
I have few queries regarding this.
what is a(b) in this?
how the structure will change if i have another node inside colors and all the existing child nodes appended to that?
ie:
<Colorss>
<Colors>
<Color1>White</Color1>
<Color2>Blue</Color2>
<Color3>Black</Color3>
<Color4 Special="Light">Green</Color4>
<Color5>Red</Color5>
</Colors>
<Colorss>
<Fruits>
<Fruits1>Apple</Fruits1>
<Fruits2>Pineapple</Fruits2>
<Fruits3>Grapes</Fruits3>
<Fruits4>Melon</Fruits4>
</Fruits>
what does it mean by a.b.value? When I mouse over it shows a is derived table. Can I check value of the table a?
Any help in this will be appreciated.
what is a(b) in this?
The call to .nodes('SampleXML') is a XQuery function which returns a pseudo table which contains one column of an XML fragment for each of the elements that this XPath expression matches - and the a(b) is the table alias (a) for that column, and b is the name of the column in that pseudo table containing the XML fragments.
what does it mean by a.b.value?
This is based on the above - a is the table alias for that temporary, inline pseudo table, b is the column name for the column in that table, and .value() is another XQuery function that will extract a single value from XML, based on the XPath expression (first argument) and it will return it as the datatype specified in the second argument.
You should check out those introductions to XQuery support in SQL Server to understand better:
Introduction to XQuery in SQL Server 2005
XQuery basics
and there are numerous other introductions and tutorials on XQuery - just search with your favorite search engine and you'll get tons of hits!
here's my stab # it:
a-refers to root;b-refers to root and child node
DECLARE #MyXML XML
SET #MyXML = '<SampleXML>
<Colors>
<Color1>White</Color1>
<Color2>Blue</Color2>
<Color3>Black</Color3>
<Color4 Special="Light">Green</Color4>
<Color5>Red
<Color6>Black44</Color6>
<Color7>Black445</Color7>
</Color5>
</Colors>
<Fruits>
<Fruits1>Apple</Fruits1>
<Fruits2>Pineapple</Fruits2>
<Fruits3>Grapes</Fruits3>
<Fruits4>Melon</Fruits4>
</Fruits>
</SampleXML>'
to get an inner child
SELECT
a.c.value('Colors1/Color11','varchar(10)') AS Color1,
a.c.value('Colors1/Color21','varchar(10)') AS Color2,
a.c.value('Colors1/Color31','varchar(10)') AS Color3,
a.c.value('Colors1/Color41/#Special','varchar(10)') AS Color4,
a.c.value('Colors1/Color51','varchar(10)') AS Color5,
a.c.value('Colors1/Color51/Color71','varchar(50)') AS Color6a,
a.c.value('Colors1/Color51/Color61','varchar(50)') AS Color6b, a.c.value('Fruits1/Fruits11','varchar(10)') AS Fruits1,
a.c.value('Fruits1/Fruits21','varchar(10)') AS Fruits2,
a.c.value('Fruits1/Fruits31','varchar(10)') AS Fruits3,
a.c.value('Fruits1/Fruits41','varchar(10)') AS Fruits4
FROM #MyXML.nodes('SampleXML') a(c)
A nodes() method invocation with the query expression /root/Color(n) would return a rowset with three rows, each containing a logical copy of the original XML document, and with the context item set to one of the nodes
see here
I am new to XML and SQL Server and am trying import an XML file into SQL Server 2010. I have 14 tables that I would like to parse the data into. All 14 table names are listed in the XML as nodes (I think) I found some example code that worked with the simple example XML, but my XML seems a little more complicated and may not be structured optimally; unfortunately, I can't change that. As a basic attempt, I tried to insert the data into just one field of one existing table (SILVX_SN16000), but the Message pane shows "(0 rows(s) affected). Thanks in advance for looking at this.
USE TEST
Declare #xml XML
Select #xml =
CONVERT(XML,bulkcolumn,2) FROM OPENROWSET(BULK 'C:\Users\Kevin_S\Documents \SilvxInSightImport.xml',SINGLE_BLOB) AS X
SET ARITHABORT ON
Insert into [SILVX_SN16000]
(
md_group
)
Select
P.value('MD_GROUP[1]','NVARCHAR(255)') AS md_group
From #xml.nodes('/TableData/Row') PropertyFeed(P)
Here is a much-shortened (rows removed) version of my XML:
<?xml version="1.0" ?>
<SilvxInSightImport Version="1.0" Host="uslsss17" Date="14-09-14_20-40-02">
<Tables Count="14">
<Table Name="SN16000">
<TableSchema>
<Column><COLUMN_NAME>PARENT_HPKEY</COLUMN_NAME><DATA_TYPE>VARCHAR2</DATA_TYPE></Column>
<Column><COLUMN_NAME>MD_GROUP</COLUMN_NAME><DATA_TYPE>VARCHAR2</DATA_TYPE></Column>
<Column><COLUMN_NAME>PKEY</COLUMN_NAME><DATA_TYPE>NUMBER</DATA_TYPE></Column>
<Column><COLUMN_NAME>S_STATE</COLUMN_NAME><DATA_TYPE>VARCHAR2</DATA_TYPE></Column>
<Column><COLUMN_NAME>NAME</COLUMN_NAME><DATA_TYPE>VARCHAR2</DATA_TYPE></Column>
<Column><COLUMN_NAME>ROUTER_ID</COLUMN_NAME><DATA_TYPE>VARCHAR2</DATA_TYPE></Column>
<Column><COLUMN_NAME>IP_ADDR</COLUMN_NAME><DATA_TYPE>VARCHAR2</DATA_TYPE></Column>
</TableSchema>
<TableData>
<Row><MD_GROUP>100.120.25162</MD_GROUP><PARENT_HPKEY>100</PARENT_HPKEY> <PKEY>161888</PKEY><NAME>UODEDTM010</NAME><ROUTER_ID>10.41.32.129</ROUTER_ID> <IP_ADDR>10.41.32.129</IP_ADDR><S_STATE>IS-NR</S_STATE></Row>
<Row><MD_GROUP>100.120.25162</MD_GROUP><PARENT_HPKEY>100</PARENT_HPKEY> <PKEY>278599</PKEY><NAME>UODEETM010</NAME><ROUTER_ID>10.41.4.129</ROUTER_ID> <IP_ADDR>10.41.4.129</IP_ADDR><S_STATE>IS-NR</S_STATE></Row>
<Row><MD_GROUP>100.120.25162</MD_GROUP><PARENT_HPKEY>100</PARENT_HPKEY> <PKEY>183583</PKEY><NAME>UODEGRM010</NAME><ROUTER_ID>10.41.76.129</ROUTER_ID> <IP_ADDR>10.41.76.129</IP_ADDR><S_STATE>IS-NR</S_STATE></Row>
NT_HPKEY>100</PARENT_HPKEY><PKEY>811003</PKEY><NAME>UODWTIN010</NAME> <ROUTER_ID>10.27.36.130</ROUTER_ID><IP_ADDR>10.27.36.130</IP_ADDR><S_STATE>IS-NR</S_STATE> </Row>
</TableData>
</Table>
</Tables>
</SilvxInSightImport>
The xPath in .nodes() must specify the whole path to the Row nodes so you should start with SilvxInSightImport and work your way down to Row.
/SilvxInSightImport/Tables/Table/TableData/Row
In your case you have multiple table nodes, one for each table and I assume you only need one table at a time. You can use a predicate on the table name in the .nodes() xPath expression.
/SilvxInSightImport/Tables/Table[#Name = "SN16000"]/TableData/Row
Your whole query for SN16000 should look something like this.
select T.X.value('(MD_GROUP/text())[1]', 'varchar(20)') as MD_GROUP,
T.X.value('(PARENT_HPKEY/text())[1]', 'int') as PARENT_HPKEY,
T.X.value('(PKEY/text())[1]', 'int') as PKEY,
T.X.value('(NAME/text())[1]', 'varchar(20)') as NAME,
T.X.value('(ROUTER_ID/text())[1]', 'varchar(20)') as ROUTER_ID,
T.X.value('(IP_ADDR/text())[1]', 'varchar(20)') as IP_ADDR,
T.X.value('(S_STATE/text())[1]', 'varchar(20)') as S_STATE
from #XML.nodes('/SilvxInSightImport/Tables/Table[#Name = "SN16000"]/TableData/Row') as T(X)
You have to sort out the data types used for each column.
SQL Fiddle