Hello
I have the following xml data stored in an xml datatype colmun in sql
server 2005:
<webpage id="935623B3-F72D-45EE-AF88-47022F101184">
<createdate>Sep 6 2005 11:04AM</createdate>
<title>Themes</title>
<icon>app/16/p/text_align_left</icon>
<pagetext />
</webpage>
I'd like to be able to update the the xml so that there is text within
the pagetext element, i.e.
...
<pagetext>
Some content goes here.
</pagetext>
...
I've tried to achieve this using the query below:
update tbl_tree SET theTree.modify(' replace value of
(//*[@.id=sql:variable("@.focusID")][1]/title/text())[1] with
sql:variable("@.someContent")')
but it doesn't work. Is this because you can't 'modify' an empty
element such as '<pagetext/>'
I thought about inserting a node such as '<pagetext>Some content goes
here.</pagetext>'- this would solve the problem only until such time as
the element has its contents removed at which point it will become
<pagetext/> again.
Is there a way to do this?
Any help very much appreciated.
Peter
You would need an IF_DML statement that unfortunately did not make it into
SQL Server 2005. Please send an email to sqlwish at microsoft.com with your
use case and request.
Here is a workaround: You first update all those pagetext elements that have
no content with an insert and then do your normal replace value of.
declare @.x xml;
set @.x = N'<webpage id="935623B3-F72D-45EE-AF88-47022F101184">
<createdate>Sep 6 2005 11:04AM</createdate>
<title>Themes</title>
<icon>app/16/p/text_align_left</icon>
<pagetext />
</webpage>';
declare @.focusID uniqueidentifier;
set @.focusID = '935623B3-F72D-45EE-AF88-47022F101184';
declare @.someContent nvarchar(50);
set @.someContent= N'this is a test';
--I'd like to be able to update the the xml so that there is text within
--the pagetext element, i.e.
SET @.x.modify('insert text {"x"}
into /webpage[@.id=sql:variable("@.focusID")][1]/pagetext[not(text())][1]');
select @.x;
SET @.x.modify('replace value of
(/webpage[@.id=sql:variable("@.focusID")][1]/pagetext/text())[1] with
sql:variable("@.someContent")');
select @.x
Best regards
Michael
<firechaser@.talk21.com> wrote in message
news:1127893569.480367.18870@.g14g2000cwa.googlegro ups.com...
> Hello
> I have the following xml data stored in an xml datatype colmun in sql
> server 2005:
> <webpage id="935623B3-F72D-45EE-AF88-47022F101184">
> <createdate>Sep 6 2005 11:04AM</createdate>
> <title>Themes</title>
> <icon>app/16/p/text_align_left</icon>
> <pagetext />
> </webpage>
> I'd like to be able to update the the xml so that there is text within
> the pagetext element, i.e.
> ...
> <pagetext>
> Some content goes here.
> </pagetext>
> ...
> I've tried to achieve this using the query below:
> update tbl_tree SET theTree.modify(' replace value of
> (//*[@.id=sql:variable("@.focusID")][1]/title/text())[1] with
> sql:variable("@.someContent")')
> but it doesn't work. Is this because you can't 'modify' an empty
> element such as '<pagetext/>'
> I thought about inserting a node such as '<pagetext>Some content goes
> here.</pagetext>'- this would solve the problem only until such time as
> the element has its contents removed at which point it will become
> <pagetext/> again.
> Is there a way to do this?
> Any help very much appreciated.
> Peter
>
|||Thanks Michael - I appreciate your help.
