ORA-20000

Continue to consider new features xsl-transformer in Oracle XDK.
Now let's talk about the Standard functions.

Standard functions appeared in 2 versions XSLT, so the version = "2.0" is necessary to specify the header of XSLT.

select ora_20000_xmlutility.XMLTransformClob
        (xml_sample.xmltext,
q'~<xsl:stylesheet version="2.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:fn="http://www.w3.org/2005/xpath-functions">  
  
  <xsl:template match="/"> 
    <xsl:value-of select="fn:upper-case('Function plig-in.')"/>  
  </xsl:template> 
</xsl:stylesheet>
~'      )
from   xml_sample;

Result:

<?xml version = '1.0' encoding = 'UTF-8'?>
FUNCTION PLIG-IN.

Additional links:

• Custom XSLT with Oracle XDK library in ORACLE DB
• Custom XSLT with JAPX library in ORACLE DB
• Using Temporary Trees in XSLT Oracle XDK
• XML Transformation with XSLT 1.0 and 2.0
• Using Grouping in XSLT Oracle XDK
• Using java method in XSLT Oracle XDK
• Using User-defined functions in XSLT Oracle XDK

Continue to consider new features xsl-transformer  in Oracle XDK.
Now let's talk about the User-defined functions.

Custom functions appeared in 2 versions XSLT, so the version = "2.0" is necessary to specify the header of XSLT.

select ora_20000_xmlutility.XMLTransformClob
        (xml_sample.xmltext,
q'~<xsl:stylesheet version="2.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:foo="http://foo" 
  exclude-result-prefix="foo">  
  
  <xsl:function name="foo:twice">
    <xsl:param name="p-string" /> 
    <xsl:value-of select="concat($p-string, $p-string)" /> 
  </xsl:function> 

  <xsl:template match="/"> 
    <xsl:value-of select="foo:twice('Function plig-in. ')"/>  
  </xsl:template> 
</xsl:stylesheet>
~'      )
from   xml_sample;

Result:

<?xml version = '1.0' encoding = 'UTF-8'?>
Function plig-in. Function plig-in. 

Additional links:

• Custom XSLT with Oracle XDK library in ORACLE DB
• Custom XSLT with JAPX library in ORACLE DB
• Using Temporary Trees in XSLT Oracle XDK
• XML Transformation with XSLT 1.0 and 2.0
• Using Grouping in XSLT Oracle XDK
• Using java method in XSLT Oracle XDK

Continue to consider new features xsl-transformer in Oracle XDK.
Now let's talk about the Java method.

First of all, the database user must be given the right to download the java classes.

begin
  dbms_java.grant_permission( 'SCOTT', 'SYS:java.lang.RuntimePermission', 'getClassLoader', '' );
end;

Now you can try an example.

select ora_20000_xmlutility.XMLTransformClob
        (xml_sample.xmltext,
q'~<xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:jstring="http://www.oracle.com/XSL/Transform/java/java.lang.String"> 
  <xsl:template match="/"> 
    <xsl:variable name="str1" select="jstring:new('HeLlO wOrLd')"/> 
    <xsl:value-of select="jstring:toUpperCase($str1)"/> 
  </xsl:template> 
</xsl:stylesheet>
~'                                                        
        )
from   xml_sample;

Result:

<?xml version = '1.0' encoding = 'UTF-8'?>
HELLO WORLD

Additional links:

• Custom XSLT with Oracle XDK library in ORACLE DB
• Custom XSLT with JAPX library in ORACLE DB
• Using Temporary Trees in XSLT Oracle XDK
• XML Transformation with XSLT 1.0 and 2.0
• Using Grouping in XSLT Oracle XDK

Continue to consider new features trasformera xslt in Oracle XDK.
Now let's talk about the "Grouping".
You can use the <xsl:for-each-group> element, current-group() function, and current-grouping-key() function.

select ora_20000_xmlutility.XMLTransformClob
        (xml_sample.xmltext,
q'~<?xml version="1.0" encoding="Windows-1251"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="2.0">

  <xsl:output method="xml" indent="yes"/>
    
  <xsl:template match="/"> 
    <catalog>
       <xsl:for-each-group select="catalog/book" group-by="genre">
         <genre>
          <xsl:attribute name="name"><xsl:value-of select="current-grouping-key()"/></xsl:attribute>
                  
          <xsl:for-each select="current-group()">
            <xsl:copy-of select="." />
          </xsl:for-each>
         </genre>
       </xsl:for-each-group>
    </catalog>
  </xsl:template>  
</xsl:stylesheet>~'                                                        
        )
from   xml_sample;

Result:

<?xml version="1.0" encoding="UTF-8"?>
<catalog>
 <genre name="Computer">
  <book id="bk101">
   <author>Gambardella, Matthew</author>
   <title>XML Developer's Guide</title>
   <genre>Computer</genre>
   <price>44.95</price>
   <publish_date>2000-10-01</publish_date>
   <description>An in-depth look at creating applications
   with XML.</description>
  </book>
  <book id="bk110">
   <author>O'Brien, Tim</author>
   <title>Microsoft .NET: The Programming Bible</title>
   <genre>Computer</genre>
   <price>36.95</price>
   <publish_date>2000-12-09</publish_date>
   <description>Microsoft's .NET initiative is explored in
   detail in this deep programmer's reference.</description>
  </book>
  <book id="bk111">
   <author>O'Brien, Tim</author>
   <title>MSXML3: A Comprehensive Guide</title>
   <genre>Computer</genre>
   <price>36.95</price>
   <publish_date>2000-12-01</publish_date>
   <description>The Microsoft MSXML3 parser is covered in
   detail, with attention to XML DOM interfaces, XSLT processing,
   SAX and more.</description>
  </book>
  <book id="bk112">
   <author>Galos, Mike</author>
   <title>Visual Studio 7: A Comprehensive Guide</title>
   <genre>Computer</genre>
   <price>49.95</price>
   <publish_date>2001-04-16</publish_date>
   <description>Microsoft Visual Studio 7 is explored in depth,
   looking at how Visual Basic, Visual C++, C#, and ASP+ are
   integrated into a comprehensive development
   environment.</description>
  </book>
 </genre>
 <genre name="Fantasy">
  <book id="bk102">
   <author>Ralls, Kim</author>
   <title>Midnight Rain</title>
   <genre>Fantasy</genre>
   <price>5.95</price>
   <publish_date>2000-12-16</publish_date>
   <description>A former architect battles corporate zombies,
   an evil sorceress, and her own childhood to become queen
   of the world.</description>
  </book>
  <book id="bk103">
   <author>Corets, Eva</author>
   <title>Maeve Ascendant</title>
   <genre>Fantasy</genre>
   <price>5.95</price>
   <publish_date>2000-11-17</publish_date>
   <description>After the collapse of a nanotechnology
   society in England, the young survivors lay the
   foundation for a new society.</description>
  </book>
  <book id="bk104">
   <author>Corets, Eva</author>
   <title>Oberon's Legacy</title>
   <genre>Fantasy</genre>
   <price>5.95</price>
   <publish_date>2001-03-10</publish_date>
   <description>In post-apocalypse England, the mysterious
   agent known only as Oberon helps to create a new life
   for the inhabitants of London. Sequel to Maeve
   Ascendant.</description>
  </book>
  <book id="bk105">
   <author>Corets, Eva</author>
   <title>The Sundered Grail</title>
   <genre>Fantasy</genre>
   <price>5.95</price>
   <publish_date>2001-09-10</publish_date>
   <description>The two daughters of Maeve, half-sisters,
   battle one another for control of England. Sequel to
   Oberon's Legacy.</description>
  </book>
 </genre>
 <genre name="Romance">
  <book id="bk106">
   <author>Randall, Cynthia</author>
   <title>Lover Birds</title>
   <genre>Romance</genre>
   <price>4.95</price>
   <publish_date>2000-09-02</publish_date>
   <description>When Carla meets Paul at an ornithology
   conference, tempers fly as feathers get ruffled.</description>
  </book>
  <book id="bk107">
   <author>Thurman, Paula</author>
   <title>Splish Splash</title>
   <genre>Romance</genre>
   <price>4.95</price>
   <publish_date>2000-11-02</publish_date>
   <description>A deep sea diver finds true love twenty
   thousand leagues beneath the sea.</description>
  </book>
 </genre>
 <genre name="Horror">
  <book id="bk108">
   <author>Knorr, Stefan</author>
   <title>Creepy Crawlies</title>
   <genre>Horror</genre>
   <price>4.95</price>
   <publish_date>2000-12-06</publish_date>
   <description>An anthology of horror stories about roaches,
   centipedes, scorpions  and other insects.</description>
  </book>
 </genre>
 <genre name="Science Fiction">
  <book id="bk109">
   <author>Kress, Peter</author>
   <title>Paradox Lost</title>
   <genre>Science Fiction</genre>
   <price>6.95</price>
   <publish_date>2000-11-02</publish_date>
   <description>After an inadvertant trip through a Heisenberg
   Uncertainty Device, James Salway discovers the problems
   of being quantum.</description>
  </book>
 </genre>
</catalog>

Addition Links:

• Custom XSLT with Oracle XDK library in ORACLE DB
• Custom XSLT with JAPX library in ORACLE DB
• Using Temporary Trees in XSLT Oracle XDK
• XML Transformation with XSLT 1.0 and 2.0

In a previous post, I showed you how to create your own transformer xslt, use the Oracle XDK.

Consider the new features that give us their own transformer.

All features can be read here

Now Let's consider "Temporary trees".

In the first version of xslt, you can use the built-in extension must be used ora:node-set.

select ora_20000_xmlutility.XMLTransformClob
        (xml_sample.xmltext,
q'~<?xml version="1.0" encoding="Windows-1251"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:ora="http://www.oracle.com/XSL/Transform/java"  
                version="1.0">

  <xsl:output method="xml" indent="yes"/>
  
  <xsl:variable name="v-genre-type">
    <genre>
      <id>1</id>
      <name>Computer</name>
    </genre>
    <genre>
      <id>2</id>
      <name>Fantasy</name>
    </genre>
    <genre>
      <id>3</id>
      <name>Romance</name>
    </genre>
    <genre>
      <id>4</id>
      <name>Horror</name>
    </genre>
    <genre>
      <id>5</id>
      <name>Science Fiction</name>
    </genre>
  </xsl:variable>  

  <xsl:template match="*">
    <xsl:element name="{local-name()}">
      <xsl:apply-templates select="node()|@*" />
    </xsl:element>
  </xsl:template>
  
  <xsl:template match="genre">
    <xsl:variable name="v-genre-value"><xsl:value-of select="."/></xsl:variable>
    <xsl:element name="{local-name()}"><xsl:value-of select="ora:node-set($v-genre-type)/genre[name=$v-genre-value]/id"/></xsl:element>
  </xsl:template>

  <xsl:template match="@*">
    <xsl:attribute name="{local-name()}"><xsl:value-of select="."/></xsl:attribute>
  </xsl:template>
  
</xsl:stylesheet>~'                                                        
        )
from   xml_sample;

Result:

<?xml version="1.0" encoding="UTF-8"?>
<catalog>
 <book id="bk101">
  <author>Gambardella, Matthew</author>
  <title>XML Developer's Guide</title>
  <genre>1</genre>
  <price>44.95</price>
  <publish_date>2000-10-01</publish_date>
  <description>An in-depth look at creating applications
  with XML.</description>
 </book>
 <book id="bk102">
  <author>Ralls, Kim</author>
  <title>Midnight Rain</title>
  <genre>2</genre>
  <price>5.95</price>
  <publish_date>2000-12-16</publish_date>
  <description>A former architect battles corporate zombies,
  an evil sorceress, and her own childhood to become queen
  of the world.</description>
 </book>
 <book id="bk103">
  <author>Corets, Eva</author>
  <title>Maeve Ascendant</title>
  <genre>2</genre>
  <price>5.95</price>
  <publish_date>2000-11-17</publish_date>
  <description>After the collapse of a nanotechnology
  society in England, the young survivors lay the
  foundation for a new society.</description>
 </book>
 <book id="bk104">
  <author>Corets, Eva</author>
  <title>Oberon's Legacy</title>
  <genre>2</genre>
  <price>5.95</price>
  <publish_date>2001-03-10</publish_date>
  <description>In post-apocalypse England, the mysterious
  agent known only as Oberon helps to create a new life
  for the inhabitants of London. Sequel to Maeve
  Ascendant.</description>
 </book>
 <book id="bk105">
  <author>Corets, Eva</author>
  <title>The Sundered Grail</title>
  <genre>2</genre>
  <price>5.95</price>
  <publish_date>2001-09-10</publish_date>
  <description>The two daughters of Maeve, half-sisters,
  battle one another for control of England. Sequel to
  Oberon's Legacy.</description>
 </book>
 <book id="bk106">
  <author>Randall, Cynthia</author>
  <title>Lover Birds</title>
  <genre>3</genre>
  <price>4.95</price>
  <publish_date>2000-09-02</publish_date>
  <description>When Carla meets Paul at an ornithology
  conference, tempers fly as feathers get ruffled.</description>
 </book>
 <book id="bk107">
  <author>Thurman, Paula</author>
  <title>Splish Splash</title>
  <genre>3</genre>
  <price>4.95</price>
  <publish_date>2000-11-02</publish_date>
  <description>A deep sea diver finds true love twenty
  thousand leagues beneath the sea.</description>
 </book>
 <book id="bk108">
  <author>Knorr, Stefan</author>
  <title>Creepy Crawlies</title>
  <genre>4</genre>
  <price>4.95</price>
  <publish_date>2000-12-06</publish_date>
  <description>An anthology of horror stories about roaches,
  centipedes, scorpions  and other insects.</description>
 </book>
 <book id="bk109">
  <author>Kress, Peter</author>
  <title>Paradox Lost</title>
  <genre>5</genre>
  <price>6.95</price>
  <publish_date>2000-11-02</publish_date>
  <description>After an inadvertant trip through a Heisenberg
  Uncertainty Device, James Salway discovers the problems
  of being quantum.</description>
 </book>
 <book id="bk110">
  <author>O'Brien, Tim</author>
  <title>Microsoft .NET: The Programming Bible</title>
  <genre>1</genre>
  <price>36.95</price>
  <publish_date>2000-12-09</publish_date>
  <description>Microsoft's .NET initiative is explored in
  detail in this deep programmer's reference.</description>
 </book>
 <book id="bk111">
  <author>O'Brien, Tim</author>
  <title>MSXML3: A Comprehensive Guide</title>
  <genre>1</genre>
  <price>36.95</price>
  <publish_date>2000-12-01</publish_date>
  <description>The Microsoft MSXML3 parser is covered in
  detail, with attention to XML DOM interfaces, XSLT processing,
  SAX and more.</description>
 </book>
 <book id="bk112">
  <author>Galos, Mike</author>
  <title>Visual Studio 7: A Comprehensive Guide</title>
  <genre>1</genre>
  <price>49.95</price>
  <publish_date>2001-04-16</publish_date>
  <description>Microsoft Visual Studio 7 is explored in depth,
  looking at how Visual Basic, Visual C++, C#, and ASP+ are
  integrated into a comprehensive development
  environment.</description>
 </book>
</catalog>

The second version of xslt, Temporary trees are automatically converted into node-set.

select ora_20000_xmlutility.XMLTransformClob
        (xml_sample.xmltext,
q'~<?xml version="1.0" encoding="Windows-1251"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:ora="http://www.oracle.com/XSL/Transform/java"  
                version="2.0">

  <xsl:output method="xml" indent="yes"/>
  
  <xsl:variable name="v-genre-type">
    <genre>
      <id>1</id>
      <name>Computer</name>
    </genre>
    <genre>
      <id>2</id>
      <name>Fantasy</name>
    </genre>
    <genre>
      <id>3</id>
      <name>Romance</name>
    </genre>
    <genre>
      <id>4</id>
      <name>Horror</name>
    </genre>
    <genre>
      <id>5</id>
      <name>Science Fiction</name>
    </genre>
  </xsl:variable>  

  <xsl:template match="*">
    <xsl:element name="{local-name()}">
      <xsl:apply-templates select="node()|@*" />
    </xsl:element>
  </xsl:template>
  
  <xsl:template match="genre">
    <xsl:variable name="v-genre-value"><xsl:value-of select="."/></xsl:variable>
    <xsl:element name="{local-name()}"><xsl:value-of select="$v-genre-type/genre[name=$v-genre-value]/id"/></xsl:element>
  </xsl:template>

  <xsl:template match="@*">
    <xsl:attribute name="{local-name()}"><xsl:value-of select="."/></xsl:attribute>
  </xsl:template>
  
</xsl:stylesheet>~'                                                        
        )
from   xml_sample;

Additional links:

• Custom XSLT with Oracle XDK library in ORACLE DB
• Custom XSLT with JAPX library in ORACLE DB
• XML Transformation with XSLT 1.0 and 2.0