XML to CSV conversion

Question

Guys,
I got one XML file in cXML format from client which he wants me to covert into CSV file. He would like to process this file into Oracle Applications using SQL loader. He had provided me with his xml file which I am pasting below. I need your assistance to convert XML file into CSV file. I had gone through number of threads over here but nothing could work for me since my xml file is little different than usual.
<?xml version="1.0" ?>
  <!DOCTYPE cXML (View Source for full doctype...)>
- <cXML payloadID="2013-06-25T09:37:47+10:[email protected]" timestamp="2013-06-25T09:37:47+10:00" version="1.2.008">
- <Header>
- <From>
- <Credential domain="NetworkID">
  <Identity>AN01000001000</Identity>
  </Credential>
- <Credential domain="DUNS">
  <Identity>750412066</Identity>
  </Credential>
  </From>
- <To>
- <Credential domain="NetworkID">
  <Identity>751594100</Identity>
  </Credential>
- <Credential domain="DUNS">
  <Identity>751594100</Identity>
  </Credential>
  </To>
- <Sender>
- <Credential domain="NetworkID">
  <Identity>AN01000001000</Identity>
  <SharedSecret>(not telling)</SharedSecret>
  </Credential>
- <Credential domain="DUNS">
  <Identity>750412000</Identity>
  </Credential>
  <UserAgent>Corporate Express webMethods HTTP(S) client</UserAgent>
  </Sender>
  </Header>
- <Request deploymentMode="production">
- <InvoiceDetailRequest>
- <InvoiceDetailRequestHeader invoiceID="9008271000" purpose="standard" operation="new" invoiceDate="2013-06-25T00:00:00+10:00">
  <InvoiceDetailHeaderIndicator />
  <InvoiceDetailLineIndicator isTaxInLine="yes" />
- <InvoicePartner>
- <Contact role="remitTo">
  <Name xml:lang="en">XYZ Limited</Name>
- <PostalAddress>
  <Street>PRIVATE BAG 16</Street>
  <City>Alexandria</City>
  <State>NSW</State>
  <PostalCode>1435</PostalCode>
  <Country isoCountryCode="AU">AU</Country>
  </PostalAddress>
  </Contact>
  <IdReference identifier="94000721000" domain="gstID" />
  </InvoicePartner>
- <InvoicePartner>
- <Contact role="soldTo">
  <Name xml:lang="en">Customer Name</Name>
- <PostalAddress>
  <Street>PO BOX a170</Street>
  <Street>ATTN ACCOUNTS PAYABLE</Street>
  <City>SOUTH City</City>
  <State>VIC</State>
  <PostalCode>3205</PostalCode>
  <Country isoCountryCode="AU">AU</Country>
  </PostalAddress>
  </Contact>
  <IdReference identifier="78061067678" domain="gstID" />
  </InvoicePartner>
- <InvoicePartner>
- <Contact role="billTo">
  <Name xml:lang="en">Customrs Name</Name>
- <PostalAddress>
  <Street>PO BOX a170</Street>
  <Street>ATTN ACCOUNTS PAYABLE</Street>
  <City>SOUTH  City</City>
  <State>VIC</State>
  <PostalCode>3205</PostalCode>
  <Country isoCountryCode="AU">AU</Country>
  </PostalAddress>
  </Contact>
  <IdReference identifier="78061067678" domain="gstID" />
  </InvoicePartner>
- <InvoiceDetailShipping>
- <Contact role="shipFrom">
  <Name xml:lang="en">Staples Australia Pty Limited</Name>
  </Contact>
- <Contact role="shipTo" addressID="VIC">
  <Name xml:lang="en" />
- <PostalAddress>
  <Street>Clothing Store,Blamey Barracks,Buil</Street>
  <City>KAPOOKA</City>
  <State>NSW</State>
  <PostalCode>2661</PostalCode>
  <Country isoCountryCode="AU">AU</Country>
  </PostalAddress>
  </Contact>
  </InvoiceDetailShipping>
  <Extrinsic name="documentType">Tax Invoice</Extrinsic>
  </InvoiceDetailRequestHeader>
- <InvoiceDetailOrder>
- <InvoiceDetailOrderInfo>
- <OrderReference orderID="SER_6776">
  <DocumentReference payloadID="20132721.5508.1900762829@IPOS02" />
  </OrderReference>
  <SupplierOrderInfo orderID="8855712905" />
  </InvoiceDetailOrderInfo>
- <InvoiceDetailItem invoiceLineNumber="000110" quantity="1.000">
  <UnitOfMeasure>BX</UnitOfMeasure>
- <UnitPrice>
  <Money currency="AUD">21.82</Money>
  </UnitPrice>
- <InvoiceDetailItemReference lineNumber="11">
- <ItemID>
  <SupplierPartID>18839409</SupplierPartID>
  </ItemID>
  <Description xml:lang="en">BIC Cristal Easy Glide Medium Black Box</Description>
  </InvoiceDetailItemReference>
- <SubtotalAmount>
  <Money currency="AUD">21.82</Money>
  </SubtotalAmount>
- <Tax>
  <Money currency="AUD">2.18</Money>
  <Description xml:lang="en">GST</Description>
- <TaxDetail purpose="tax" category="gst" percentageRate="10.000">
- <TaxAmount>
  <Money currency="AUD">2.18</Money>
  </TaxAmount>
  </TaxDetail>
  </Tax>
- <GrossAmount>
  <Money currency="AUD" />
  </GrossAmount>
  <Comments xml:lang="en" />
  </InvoiceDetailItem>
  </InvoiceDetailOrder>
- <InvoiceDetailSummary>
- <SubtotalAmount>
  <Money currency="AUD">21.82</Money>
  </SubtotalAmount>
- <Tax>
  <Money currency="AUD">2.18</Money>
  <Description xml:lang="en">GST</Description>
  </Tax>
- <SpecialHandlingAmount>
  <Money currency="AUD">0</Money>
  </SpecialHandlingAmount>
- <ShippingAmount>
  <Money currency="AUD">0</Money>
  </ShippingAmount>
- <InvoiceDetailDiscount>
  <Money currency="AUD" />
  </InvoiceDetailDiscount>
- <NetAmount>
  <Money currency="AUD">24.00</Money>
  </NetAmount>
- <DueAmount>
  <Money currency="AUD">24.00</Money>
  </DueAmount>
  </InvoiceDetailSummary>
  </InvoiceDetailRequest>
  </Request>
  </cXML>
Waiting for your reply. Thanks.
-Sunil

Answer 1

As far as your clarification around "What CSV looks like?"  I must tell you this XML has Header and Details Data it should display Header and Line information in a single line of CSV.
It's not that simple.
For example, take the <InvoicePartner> element, there are 3 occurrences in the sample XML. How do they translate into csv format ? All three on the same line, or each in its own new line (potentially generating lots of redundancies in the process) ?
I encourage you to do this exercise yourself first : try to build your expected csv output "manually" from the sample XML and see if the result makes sense.
If it does then post it here and we'll see how to implement the transformation.