I'm outputting a XML formatted response in a select statement.
The XML schema goes: Placemark->MultiGeometry->Polygon-><more children>
I'm using existing data.
The table I am running with, let's call it table1, has a name (varchar datatype), style (varchar datatype), and geometry (XML datatype)
The values of the geometry field have pre-formatted xml already. The root tag for each value for all records is MultiGeometry.
Here's the problem.
If I perform:
select name, style, geometry from table1
for xml path('Placemark'), ELEMENTS
I receive this:
<Placemark>
<Name>stuff</Name>
<style>style stuff</style>
<Geometry>
<MultiGeometry>...xml...</MultiGeometry>
</Geometry>
</Placemark>
This fails schema, because the schema (kml schemas) require that MultiGeometry is the child tag inside PLacemark, and the schema does not recognize the <Geometry> tag.
I need this:
<Placemark>
<Name>stuff</Name>
<style>style stuff</style>
<MultiGeometry>...xml...</MultiGeometry>
</Placemark>
but trying:
select name, style, geometry as [ ]
from table1 for xml path('Placemark'), ELEMENTS
fails the query.
How do I get to where I can put MultiGeometry in Placemark without a intermediate tag (Such as <Geometry>)?
Thanks much
Sure:
select name, style, geometry.query('.')
from table1
for xml path('Placemark'), type, ELEMENTS;
Maybe something like.....
SELECT CAST(
REPLACE(
REPLACE(CAST((select name, style, [Geometry] AS [ReplaceMe]
from Table1
for xml path('Placemark'),ELEMENTS) AS VARCHAR(MAX))
, '<ReplaceMe>' , '')
, '</ReplaceMe>' , '') AS XML)
Related
I'm trying to parse XML data in SQL Server. I have a XML column in a table, the XML stored in it can vary by type, but they all inherit from the same base type.
Row 1: has XML like so:
<Form>
<TaskType>1</TaskType>
--Other Properties ...
</Form>
Row 2: has XML like so:
<License>
<TaskType>2</TaskType>
--Other Properties ...
</License>
Normally I might parse XML with this T-SQL code snippet:
SELECT
xmlData.A.value('.', 'INT') AS Animal
FROM
#XMLToParse.nodes('License/TaskType') xmlData(A)
This doesn't work since in a view since I'm dependent on the name to find the node.
How can I always find the TaskType XML element in my XML content?
Please try the following solution.
XPath is using asterisk * as a wildcard.
http://www.tizag.com/xmlTutorial/xpathwildcard.php
SQL
-- DDL and sample data population, start
DECLARE #tbl TABLE (ID INT IDENTITY PRIMARY KEY, xmldata XML);
INSERT #tbl (xmldata) VALUES
(N'<Form>
<TaskType>1</TaskType>
<TaskName>Clone</TaskName>
<!--Other XML elements-->
</Form>'),
(N'<License>
<TaskType>2</TaskType>
<TaskName>Copy</TaskName>
<!--Other XML elements-->
</License>');
-- DDL and sample data population, end
SELECT ID
, c.value('(TaskType/text())[1]', 'INT') AS TaskType
, c.value('(TaskName/text())[1]', 'VARCHAR(20)') AS TaskName
FROM #tbl
CROSS APPLY xmldata.nodes('/*') AS t(c);
Output
ID
TaskType
TaskName
1
1
Clone
2
2
Copy
Apparently you can just interate the nodes like so without being aware of their name:
SELECT xmlData.A.value('.', 'INT') AS Animal
FROM #XMLToParse.nodes('node()/TaskType') xmlData(A)
SELECT *
FROM #myHierarchy
FOR XML AUTO
Data is
<_x0040_myHierarchy element_id="1" parent_ID="1" NAME="itemCode" StringValue="Simmi" ValueType="string" />
I'm unable to load data in this query
SELECT #xml = dbo.ToXML(#myHierarchy);
SELECT
a.b.value('#ItemCode', 'varchar(20)') AS ItemCode
FROM
#xml.nodes('/root/_x0040_myHierarchy') a(b)
In this query, itemcode is blank. How can I load data using this query?
Your sample XML does not contain any attribute ItemCode - it has these attributes:
element_id
parent_ID
NAME
StringValue
ValueType
So which value do you really want to read out from the XML element?
Update: to retrieve the StringValue attribute, use this code:
SELECT
XC.value('#StringValue', 'varchar(50)')
FROM
#xml.nodes('/_x0040_myHierarchy') AS XT(XC)
If your XML contains a <root> ..... </root> root element, and multiple <_x0040_myHierarchy> elements inside, and you want to extract the one with #Name = 'itemCode' - then you need to use this SELECT:
SELECT
XC.value('#StringValue', 'varchar(50)')
FROM
#xml.nodes('/root/_x0040_myHierarchy') AS XT(XC)
WHERE
XC.value('#NAME', 'varchar(50)') = 'itemCode'
I have a column that contains XML data, but is TEXT type and not XML type. (I have to leave it like this for another reason).
Basically i need to cast it to NText first and then XML. The only problem is my current format that works for selecting the Node value doesnt work to update it.
Error Message: Incorrect syntax near the keyword 'AS'.
UPDATE tbl_Module_RequestForms_Items
SET CAST(CAST(TicorOregon..tbl_Module_RequestForms_Items.XML AS NTEXT) AS XML).value('(//Record/Submitted)[1]', 'NVARCHAR(max)') = 'True'
WHERE CAST(CAST(TicorOregon..tbl_Module_RequestForms_Items.XML AS NTEXT) AS XML).value('(//Record/Submitted)[1]', 'NVARCHAR(max)') <> 'True'
XML Data:
<Record>
<Submitted>False</Submitted>
</Record>
There might be valid reason to store XML in a [n]varchar(max). If you want to only store the XML it is perfectly OK but if you want to modify parts of the XML using TSQL or if you need to query the XML for values or use node/attribute values in a where clause you should switch to XML where you can benefit from indexes on the data and skip the type conversions. Since text is deprecated you should at least consider to switch data type to [n]varchar(max)
If you had your data in a XML column you would use XML DML to modify the XML. In your case you would use replace value of like this.
update tbl_Module_RequestForms_Items
set XMLData.modify('replace value of (/Record/Submitted/text())[1] with "True"')
where XMLData.value('(/Record/Submitted)[1]', 'bit') = 0
Without the XML data type that is not possible so you have to extract the entire XML document, modify it and then update the table with the modified XML document.
You can of course do that using some kind of client development tool but it is also possible in TSQL.
Declare a table variable with the primary key from tbl_Module_RequestForms_Items and the XMLData column but as data type XML.
Copy the rows from tbl_Module_RequestForms_Items to the table variable that should be updated.
Update the XML using replace value of.
Apply the changes back to tbl_Module_RequestForms_Items.
Something like this where I assume that ID is the primary key for tbl_Module_RequestForms_Items and that your XML data is in column XMLData:
declare #T table
(
ID int primary key,
XMLData xml
)
insert into #T
select M.ID,
M.XMLData
from tbl_Module_RequestForms_Items as M
where cast(cast(XMLData as nvarchar(max)) as xml).value('(/Record/Submitted)[1]', 'bit') = 0
update #T
set XMLData.modify('replace value of (/Record/Submitted/text())[1] with "True"')
update M
set XMLData = cast(T.XMLData as nvarchar(max))
from tbl_Module_RequestForms_Items as M
inner join #T as T
on M.ID = T.ID
I have some XML data stored in a varchar(max) column on SQL Server 2005. The data is in the form (FQTN = fully qualified type name):
<?xml version="1.0" encoding="utf-16"?>
<History xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<EntityViews>
<EntityProxy Type="FQTN" Key="386876" />
<EntityProxy Type="FQTN" Key="387981" />
<!-- etc. -->
</EntityViews>
</History>
How can I select Type, Key so that I get a tabular result from the XML data in this column for a single row? The table has an identity primary key named HistoryId.
;with cteCastToXML as (
select CAST(YourColumn as xml) as x
from YourTable
)
select h.ep.value('#Type','varchar(10)') as [Type],
h.ep.value('#Key', 'varchar(10)') as [Key]
from cteCastToXML
cross apply x.nodes('/History/EntityViews/EntityProxy') as h(ep)
My recommendation would be two fold.
If this is what you will be doing with the column, change the column to be an XML column.
If you need to do this one time, look at taking the value and converting it to XML, then you can operate on it like you would normally. (Here is a link on how to convert).
I am using a table with an XML data field to store the audit trails of all other tables in the database.
That means the same XML field has various XML information. For example my table has two records with XML data like this:
1st record:
<client>
<name>xyz</name>
<ssn>432-54-4231</ssn>
</client>
2nd record:
<emp>
<name>abc</name>
<sal>5000</sal>
</emp>
These are the two sample formats and just two records. The table actually has many more XML formats in the same field and many records in each format.
Now my problem is that upon query I need these XML formats to be converted into tabular result sets.
What are the options for me? It would be a regular task to query this table and generate reports from it. I want to create a stored procedure to which I can pass that I need to query "<emp>" or "<client>", then my stored procedure should return tabular data.
does this help?
INSERT INTO #t (data) SELECT '
<client>
<name>xyz</name>
<ssn>432-54-4231</ssn>
</client>'
INSERT INTO #t (data) SELECT '
<emp>
<name>abc</name>
<sal>5000</sal>
</emp>'
DECLARE #el VARCHAR(20)
SELECT #el = 'client'
SELECT
x.value('local-name(.)', 'VARCHAR(20)') AS ColumnName,
x.value('.','VARCHAR(20)') AS ColumnValue
FROM #t
CROSS APPLY data.nodes('/*[local-name(.)=sql:variable("#el")]') a (x)
/*
ColumnName ColumnValue
-------------------- --------------------
client xyz432-54-4231
*/
SELECT #el = 'emp'
SELECT
x.value('local-name(.)', 'VARCHAR(20)') AS ColumnName,
x.value('.','VARCHAR(20)') AS ColumnValue
FROM #t
CROSS APPLY data.nodes('/*[local-name(.)=sql:variable("#el")]') a (x)
/*
ColumnName ColumnValue
-------------------- --------------------
emp abc5000
*/
Neither xyz432-54-4231 nor abc5000 is valid XML.
You can try to select only one particular format with a like statement, f.e.:
select *
from YourTable
where YourColumn like '[a-z][a-z][a-z][0-9][0-9][0-9][0-9]'
This would match 3 letters followed by 4 numbers.
A better option is probably to add an extra column to the table, where you save the type of the logging. Then you can use that column to select all "emp" or "client" rows.
An option would be to create a series of views that present the aduit table, per type in the relations that you're execpting
for example
select
c.value('name','nvarchar(50)') as name,
c.value('ssn', 'nvarchar(20)') as ssn
from yourtable
cross apply yourxmlcolumn.nodes('/client') as t(c)
you could then follow the same pattern for the emp
you could also create a view (or computed column) to identify each xml type like this:
select yourxmlcolumn.value('local-name(/*[1])', 'varchar(100)') as objectType
from yourtable
Use open xml method
DECLARE #idoc int
EXEC sp_xml_preparedocument #idoc OUTPUT, #xmldoc
SELECT * into #test
FROM OPENXML (#idoc, 'xmlfilepath',2)
WITH (Name varchar(50),ssn varchar(20)
)
EXEC sp_xml_removedocument #idoc
after you get the data in the #test
and you can manipulate this.
you may be put the diff data in diff xml file.