Pls help Cartesian Join

Question

<PODetails>
- <POHeader>
<CurrencyID>INR</CurrencyID>
<ExchangeRate>1</ExchangeRate>
<RefNo>0080000110</RefNo>
<VendorID>1200</VendorID>
<TransDate>2006-12-20</TransDate>
<DocRelationshipId>PURCHASE</DocRelationshipId>
<LocationID>0000102327</LocationID>
</POHeader>
- <POItemDetails>
<ItemID>ARSH1332</ItemID>
<Size>L HS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>3.000</Quantity>
<PriceValue>2509.5</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
- <POItemDetails>
<ItemID>ARSH1332</ItemID>
<Size>M HS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>2.000</Quantity>
<PriceValue>1673</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
- <POItemDetails>
<ItemID>ARSH1556</ItemID>
<Size>39FS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>1.000</Quantity>
<PriceValue>836.5</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
+ <POHeader>
<CurrencyID>INR</CurrencyID>
<ExchangeRate>1</ExchangeRate>
<RefNo>0080000110</RefNo>
<VendorID>1200</VendorID>
<TransDate>2006-12-20</TransDate>
<DocRelationshipId>PURCHASE</DocRelationshipId>
<LocationID>0000102327</LocationID>
</POHeader>
+ <POItemDetails>
<ItemID>ARSH1332</ItemID>
<Size>L HS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>3.000</Quantity>
<PriceValue>2509.5</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
+ <POItemDetails>
<ItemID>ARSH1332</ItemID>
<Size>M HS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>2.000</Quantity>
<PriceValue>1673</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
+ <POItemDetails>
<ItemID>ARSH1556</ItemID>
<Size>39FS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>1.000</Quantity>
<PriceValue>836.5</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
+ <POHeader>
<CurrencyID>INR</CurrencyID>
<ExchangeRate>1</ExchangeRate>
<RefNo>0080000110</RefNo>
<VendorID>1200</VendorID>
<TransDate>2006-12-20</TransDate>
<DocRelationshipId>PURCHASE</DocRelationshipId>
<LocationID>0000102327</LocationID>
</POHeader>
+ <POItemDetails>
<ItemID>ARSH1332</ItemID>
<Size>L HS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>3.000</Quantity>
<PriceValue>2509.5</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
+ <POItemDetails>
<ItemID>ARSH1332</ItemID>
<Size>M HS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>2.000</Quantity>
<PriceValue>1673</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
+ <POItemDetails>
<ItemID>ARSH1556</ItemID>
<Size>39FS</Size>
<Quality>Q1</Quality>
<UOM>PC</UOM>
<Quantity>1.000</Quantity>
<PriceValue>836.5</PriceValue>
<TaxAmount>0.00</TaxAmount>
</POItemDetails>
</PODetails>
Query -
SELECT extract(value(d), '//CurrencyID/text()').getStringVal() AS CurrencyID,
extract(value(d), '//ExchangeRate/text()').getStringVal() AS ExchangeRate,
     extract(value(d), '//RefNo/text()').getStringVal() AS RefNo,
     extract(value(d), '//VendorID/text()').getStringVal() AS VendorID,
     extract(value(d), '//TransDate/text()').getStringVal() AS TransDate,
     extract(value(d), '//DocRelationshipId/text()').getStringVal() AS DocRelationshipId,
     extract(value(d), '//LocationID/text()').getStringVal() AS LocationID,
     extract(value(z), '//ItemID/text()').getStringVal() AS ItemID,
     extract(value(z), '//Size/text()').getStringVal() AS Size_cd ,
extract(value(z), '//Quality/text()').getStringVal() AS Quality,
     extract(value(z), '//UOM/text()').getStringVal() AS UOM,
     extract(value(z), '//Quantity/text()').getStringVal() AS Quantity,
     extract(value(z), '//PriceValue/text()').getStringVal() AS PriceValue,
     extract(value(z), '//TaxAmount/text()').getStringVal() AS TaxAmount
FROM xml_raw x,table(xmlsequence(extract(value(x), '//PODetails/POHeader'))) d,
table(xmlsequence(extract(value(x), '//POItemDetails'))) z
I am getting 3*3*3 = 27 rows
I would have to get only
3*3 rows.
Pls Help
regds,
Santhoshkumar.G.

Answer 1

Please see my response to your previous post on this subject.
#1. STOP BEING LAZY by using '//' in your XPath expressions
#2 Get your aliases correct. The input to the second XML Sequence is the output of the first XML Sequence not the original document.
Message was edited by:
mdrake