Get Data from XML Nodes for multiple rows

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Get Data from XML Nodes for multiple rows

Author

Topic

pricejt
Starting Member

9 Posts

Posted - 2011-11-22 : 15:55:54

Ok i have this working however I still don't understand how to get all the values when my select returns more than 1 row. I assume I need a loop just not sure if there is a better way.

Here is what I have:


DECLARE @x XML;

SELECT @x = 
r.XMLData
FROM RulesetGroups rg
INNER JOIN Rulesets rs on
rg.RulesetGroupID = rs.RulesetGroupID
INNER JOIN Rules r on
rs.RulesetID = r.RulesetID
WHERE r.RuleTypeID = 3 and r.XMLData.value('(/Screen/ScreenOption/@Name)[1]', 'varchar(255)') is not null;

-- select "Name" 
WITH Num(i)
AS
(
   SELECT 1
   UNION ALL
   SELECT i + 1
   FROM Num
   WHERE i < (SELECT @x.value('count(/Screen/ScreenOption/@Name)','varchar(255)') )
)
SELECT x.value('@Name[1]', 'varchar(20)') 
FROM Num
CROSS APPLY @x.nodes('/Screen/ScreenOption[position()=sql:column("i")]')  e(x);

My XML for one row. I will have hundreds of these though in different rows:


<Screen Title="">
  <ScreenOption Sequence="1" Name="BTWidth" />
  <ScreenOption Sequence="2" Name="BTHeight" />
</Screen>

Any help will be appreciated.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-11-23 : 00:21:49

[code]
SELECT t.u.value('@Sequence','int') as Sequence,
t.u.value('@Name','varchar(100)') as Name
FROM RulesetGroups rg
INNER JOIN Rulesets rs on
rg.RulesetGroupID = rs.RulesetGroupID
INNER JOIN Rules r on
rs.RulesetID = r.RulesetID
CROSS APPLY XMLData.Nodes('/Screen/ScreenOption')t(u)
WHERE r.RuleTypeID = 3 and t.u.value('@Name', 'varchar(255)') is not null
ORDER BY t.u.value('@Sequence','int')
[/code]

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

pricejt
Starting Member

9 Posts

Posted - 2011-11-23 : 08:42:27

I don't understand. It says invalid object xmldata.nodes. Is that supposed to replace all of my sql or only a portion of it?

pricejt
Starting Member

9 Posts

Posted - 2011-11-23 : 14:54:38

Sorry I got it XML is case sensitive its .nodes() not .Nodes()

Thanks so much.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-11-25 : 08:49:37

quote:
Originally posted by pricejt

Sorry I got it XML is case sensitive its .nodes() not .Nodes()

Thanks so much.

wc

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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