Convert XML value to a table using SQL - sql-server

Question

"I have a xml field with the following value:
<table>
<id>{cdf8cafc-2b3c-454b-aab8-c6c27e96b675}</id>
<rows>
<row>
<columns>
<column name="po_desc" value="Item-1" type="System.String" />
<column name="Qty" value="15" type="System.Int32" />
<column name="price" value="100" type="System.Decimal" />
<column name="linetotal" value="1500" type="System.Decimal" />
<column name="DefaultKey" value="1" type="System.Int32" />
</columns>
</row>
<row>
<columns>
<column name="po_desc" value="" type="System.String" />
<column name="Qty" value="1" type="System.Int32" />
<column name="price" value="1" type="System.Decimal" />
<column name="linetotal" value="1" type="System.Decimal" />
<column name="DefaultKey" value="2" type="System.Int32" />
</columns>
</row>
</rows>
</table>
And I need to transform this to Row and columns as below
PO_desc Qty Price LineTotal
=====================================
item-1 15 100 1500
Item-2 1 1 1
=======================================
using MS SQL Query.

Answer 1

Try it like this
DECLARE #DummyTable TABLE(ID INT IDENTITY, YourXmlColumn XML);
INSERT INTO #DummyTable VALUES
('<table>
<id>{cdf8cafc-2b3c-454b-aab8-c6c27e96b675}</id>
<rows>
<row>
<columns>
<column name="po_desc" value="Item-1" type="System.String" />
<column name="Qty" value="15" type="System.Int32" />
<column name="price" value="100" type="System.Decimal" />
<column name="linetotal" value="1500" type="System.Decimal" />
<column name="DefaultKey" value="1" type="System.Int32" />
</columns>
</row>
<row>
<columns>
<column name="po_desc" value="" type="System.String" />
<column name="Qty" value="1" type="System.Int32" />
<column name="price" value="1" type="System.Decimal" />
<column name="linetotal" value="1" type="System.Decimal" />
<column name="DefaultKey" value="2" type="System.Int32" />
</columns>
</row>
</rows>
</table>');
This is the query
SELECT r.value('(columns/column[#name="po_desc"]/#value)[1]','nvarchar(max)') AS PO_Desc
,r.value('(columns/column[#name="Qty"]/#value)[1]','int') AS Qty
,r.value('(columns/column[#name="price"]/#value)[1]','decimal') AS Price
,r.value('(columns/column[#name="linetotal"]/#value)[1]','decimal') AS LineTotal
FROM #DummyTable AS t
CROSS APPLY t.YourXmlColumn.nodes('/table/rows/row') AS A(r);