Question

So I have the below that will allow me to get xml from one record in the Products table.

However, I need to to be able to get the XML from ALL records in the Products table, along with its ProductId.

I’m confused on how to start this.

DECLARE @MyXML XML
SET @MyXML =
    (SELECT ProductsXML
     FROM Products
     WHERE ProductId= 1)
SELECT 
    a.b.value('@upccode','int') as UPC,
    a.b.value('@dateadded','date') as DateAdded
FROM
    @MyXML.nodes('xml/Product/UPC')a(b);

I’m using SQL Server 2008.

Test Data:

ProductId: 1
ProductsXML:
<xml>
        <Product>
            <UPC upccode="1237" dateadded="10/9/2012"/>
            <UPC upccode="1236" dateadded="10/8/2012"/>
            <UPC upccode="1235" dateadded="10/7/2012"/>
            <UPC upccode="1234" dateadded="10/6/2012"/>
        </Product>
    </xml>

ProductId: 2
ProductsXML:
<xml>
        <Product>
            <UPC upccode="9876" dateadded="9/9/2012"/>
            <UPC upccode="9877" dateadded="9/8/2012"/>
            <UPC upccode="0998" dateadded="9/7/2012"/>
            <UPC upccode="7877" dateadded="9/6/2012"/>
        </Product>
    </xml>

The Result I’m looking for is something like this:

ProductId      UPC        DateAdded
---------      ---        ---------
1              1237       10/9/2012
1              1236       10/8/2012
....
2              9876       9/9/2012
2              9877       9/8/2012

Right now I can get the above but ONLY by specifying one PoductId at a time. I want to be able to run all of the `Products’ without specifying each entry.

Answer 1

I guess you are looking for something like this.

SELECT ProductId,
    a.b.value('@upccode','int') as UPC,
    a.b.value('@dateadded','date') as DateAdded
FROM Products
  CROSS APPLY ProductsXML.nodes('xml/Product/UPC')a(b);

There is no need to have a XML variable in there. Query the Products table directly and use CROSS APPLY against ProductsXML field to shred your XML.