Friday, March 23, 2012

How can i output XQuery's key words such like "<,>" when using XQuery in SQL Se

in SQL Server 2005, I have a codes like this:

declare @.zz varchar(1000)
declare @.x xml
set @.x = '
<root>
<billID>1122</billID>
</root>'

select @.x.query('
for $bi in //billID/text()
return ">"
')

it runs, but it prints "&gt;" not ">", I know maybe "<,>" are keys words in XQuery, but how can i output them?

someone told me to use "\", but it doesn't work.

I used Stylus Studio, it prints ">", very well http://www.stylusstudio.com/xml_download.html

but why Microsoft can't ?

Help please

Do you want it to be in an XML document that can be reparsed? then the serialization will most likely generate &gt; (as you noticed we do). If you load the XML document that contains &gt; into the IE renderer, you will notice that it will show > instead (but you could not reparse the document).

If you want to get a string value for further string processing, you need to cast the XML value to a string type... for example:

declare @.x xml

set @.x = '<root><billID>1122</billID></root>'

select (@.x.query('for $bi in //billID/text()
return ">"
')).value('text()[1]', 'nvarchar(10)')

I hope this helps
Michael

|||

hi, thanks buddy, it's so helpful, thanks so much

But I have already found another way to solve my problem, to use replace in select.. like this:

declare @.x xml
set @.x = '
<root>
<billID>1122</billID>
</root>'

select replace(convert(varchar(1000),@.x.query('
for $bi in //billID/text()
return ">"
')),'&gt;','>')

I used replace ... convert ... , thus replace all the "&gt;" as ">",, nit very smart , but it works

anyway, ur way is the best one, I like it...

Thanks

sql

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