I have a question regarding on how to restrict the number of rss feeds to be listed in the page?
Is there any way I could pass some kind of number, so that I would be able to display only first 5 rss feeds.

Any help is highly appreciable.

Thanks

I am trying to use this example for developing a RSS reader. When I change the URL for the rss feed, I am getting the following error:

Value too large for the buffer.

How can I resolve this? I changed the data type from VARCHAR2 to LONG.

Thanks

I’m curious what woudl be the best way to simply return the RSS feed as a plain XML document so I could parse it later through another tier (such as an RIA, like Flex)?

Would I just want to use UTL_HTTP?

Also, does anyone have experience providing search parameters to the select * from xmltable using XQuery? So if I wanted to return only results from the feed where description contained a certain word?

Thanks.

I’m working in 10gR2. Here’s the xml document:

——————————————————————————————

]>

1. A retirement plan that allows you a charitable deduction is
A. an IRA.
B. a 401(k) plan.
C. a unitrust.
2. A portion of the sum paid each year from a charitable gift annuity is
A. tax-free.
B. appreciated property.
C. deferred.
3. A pooled income fund
A. holds liquid assets only.
B. must be invested in short-term securities.
C. distributes its earnings to a number of beneficiaries.
4. To get a current tax deduction, your life income gift must be
A. revocable.
B. amendable.
C. irrevocable.
5. A charitable remainder annuity trust pays the beneficiary
A. a percentage of market value.
B. a fixed dollar amount.
C. its net income.
6. The greater the annual payout of a charitable remainder trust,
A. the greater the deduction.
B. the smaller the deduction.
C. the higher the capital gain.
7. You can get a current income tax charitable deduction for your home if you
A. deed it to a charitable organization.
B. will it to the IRS.
C. move out now.
8. Your most important reward from a life income gift is
A. a tax deduction.
B. increasing your income.
C. the joy of helping others.

Now, check your answers.
]]>

———————————————————————————————-
When I call the code from a stored procedure (to a web page) I get the following error:

PACKAGE: RSS.story SQLCODE: ORA-31011: XML parsing failed ORA-19202: Error occured in XML processingLPX-00111: Warning: element “ARTICLE” attribute “CATEGORIES” has invalid enumeration value “QUIZZES” Error at line 17

Any clues would be greatly appreciated …
JLW

And if namespaces are causing any troubles, you can always remove them from the XML.

The following works on 9.2, 10.1 and 10.2

select value( i ).getstringval() creator
from table( XMLSequence( HTTPURITYPE( ‘http://technology.amis.nl/blog?feed=rss2′ ).getXML().transform
( xmltype( ‘<?xml version=”1.0″?>
<xsl:stylesheet version=”1.0″ xmlns:xsl=”http://www.w3.org/1999/XSL/Transform”>
<xsl:template match=”*”>
<xsl:element name=”{local-name()}”>
<xsl:apply-templates select=”node()”/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>’ )
).extract(‘//item’) ) ) i

Note that the XSLT transformation removes not only the namespaces, but also the attributes. If you need them you have tou use something like

<?xml version=”1.0″?>
<xsl:stylesheet version=”1.0″ xmlns:xsl=”http://www.w3.org/1999/XSL/Transform”>
<xsl:template match=”*”>
<xsl:element name=”{local-name()}”>
<xsl:apply-templates select=”@*|node()”/>
</xsl:element>
</xsl:template>
<xsl:template match=”@*”>
<xsl:attribute name=”{local-name()}”>
<xsl:value-of select=”.”/>
</xsl:attribute>
</xsl:template>
</xsl:stylesheet>

The following works on 9.2, 10.1 and 10.2

select value( i ).extract( ‘/item/creator/text()’ ).getstringval() creator
from table( XMLSequence( HTTPURITYPE( ‘http://technology.amis.nl/blog?feed=rss2′ ).getXML().transform
( xmltype( ‘

‘ )
).extract(‘//item’) ) ) i

Note that the XSLT transformation removes not only the namespaces, but also the attributes. If you need them you have tou use something like

[code]

select *
from xmltable('//item'
passing HTTPURITYPE('http://technology.amis.nl/blog?feed=rss2').getXML()
columns
title varchar2(4000) path '/item/title/text()',
link varchar2(4000) path '/item/link/text()',
publication_date varchar2(4000) path '/item/pubDate/text()',
creator varchar2(4000) path '/item/*[namespace-uri()="http://purl.org/dc/elements/1.1/" and local-name()="creator"]/text()',
description varchar2(4000) path '/item/description/text()'
-- category varchar2(4000) path '/item/category/text()'
)
;

[/code]

This syntax doesn’t like the multiple categories values. Haven’t found (yet) a workaround (but because its XQuery related stuff – there should be one)

M.

select value( i ).extract( ‘/item/dc:creator/text()’, ‘xmlns:dc=http://purl.org/dc/elements/1.1/”‘ ).getstringval() creator
from table( XMLSequence( HTTPURITYPE( ‘http://technology.amis.nl/blog?feed=rss2′ ).getXML().extract(‘//item’) ) ) i

And the difference between 10.1 and 10.2

On 10.1 the extract(‘//items’) returns
[dc:creator]Bert Jan Meinders[/dc:creator]

i.e. without the namespace information

On 10.2 the namespace url is added
[dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/"]Bert Jan Meinders[/dc:creator]

It is interesting to see how many ways there are to work with XML content in the Oracle database. It is also good to have colleagues like Harm and Anton who can show me the (proper) way.