Database access with xslt document

Question

Hello,
I have a big problem. I have a database with three tables and more than hundred records. From the records of these three tables a xml document should be generated. I already have a xslt file which gets the data from the database and brings in a xml form. Is there in BPEL a possibility with the help of a xslt file to access a table? And if so like this is done? Can one give the xslt file in the data bank adaptor? The xslt file has the following appearance:
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<xsl:apply-templates select="RESULTSETS/SELECT[@NAME='idoc_element']">
<xsl:with-param name="parent_id" select="'0'"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="RESULTSETS/SELECT[@NAME='idoc_element']">
<xsl:param name="parent_id"/>
<xsl:for-each select="ROW[(parent_id=$parent_id)]">
<xsl:variable name="element_name" select="name"/>
<xsl:variable name="element_id" select="id"/>
<xsl:variable name="position" select="position"/>
<xsl:variable name="child" select="/RESULTSETS/SELECT[@NAME='idoc_element']/ROW[(parent_id=$element_id)]"/>
<xsl:element name="{$element_name}">
<xsl:for-each select="/RESULTSETS/SELECT[@NAME='idoc_attribute']/ROW[(element_id=$element_id)]">
<xsl:variable name="attr_name" select="name"/>
<xsl:attribute name="{$attr_name}"><xsl:value-of select="value"/></xsl:attribute>
</xsl:for-each>
<xsl:choose>
<xsl:when test="$child">
<xsl:apply-templates select="/RESULTSETS/SELECT[@NAME='idoc_element']">
<xsl:with-param name="parent_id" select="$element_id"/>
</xsl:apply-templates>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:element>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
This xslt forms a loop about the suitable data and joins them to a xml file.
It would be really great if somebody could help me there.
Thanks
Greeting Cathleen

Answer 1

Hello,
I know that I can define the relations between the tables in the DB Adapter.
But how do I say to him which data he from the tables should get and how should these be joined?
Since my tables are built up as follows:
Table 1 contains the head of the xml document.
Table 2 contains the attributes.
And table 3 contains the real elements of the xml document.
This is, for example, table 3:
Element | Name | Value
/root/E1 | E1     
/root/E1/E2 | E2
/root/E1/E2/E21 | E21 | 7777
/root/E1/E2/E22 | E22 | Germany
/root/E1/E3 | E3 | UTIL
And this structure should have afterwards the following construction:
<root>
<E1>
<E2>
<E21>7777</E21>
<E22>Germany</E22>
</E2>
<E3> UTIL </E3>
</E1>
</root>
Besides, subdivide themselves Element2 and Element3 and there is of it more than 100. It is very big xml document at the end.
So a xml file should originate only from the records of the table and I know not at all like I should do this with the DB Adapter. OR as I give in the DB Adapter or where I give it.
It would be really very nice and helpful ones if somebody can help me there. This is since very important for my work.
Thanks
Greeting Cathleen