Select multiple xml nodes using crossapply - sql

Question

I'm currently trying to select multiple nodes for a xml variable that get passed into a stored procedure. But I only get one node from it's xml. How can I list all of the item names and string values?
Test code:
DECLARE #T TABLE (AllXml ntext)
INSERT #T VALUES('<error>
<item name="item 1">
<value string="string 1" />
</item>
<item name="item 2">
<value string="string 2" />
</item>
<item name="item 3">
<value string="string 3" />
</item>
</error>')
SELECT
CAST(AllXml as xml).value('(/error/item/#name)[1]', 'varchar(100)' ),
CAST(AllXml as xml).value('(/error/item/value/#string)[1]', 'varchar(max)' )
FROM #T
Desired result:
Item 1 string 1
Item 2 string 2
Item 3 string 3

Answer 1

You can achieve it using the CROSS Apply. And Sub-Select.
SELECT
m.c.value('(#name)[1]', 'varchar(100)') AS Name,
m.c.value('(value/#string)[1]', 'varchar(max)') AS Value
FROM
(
SELECT CAST(AllXml as xml) AllXml
FROM #T
) AS data
CROSS APPLY AllXml.nodes('/error/item') as m(c)
Or you can use the one more CROSS APPLY as below,
SELECT
m.c.value('(#name)[1]', 'varchar(100)') AS Name,
m.c.value('(value/#string)[1]', 'varchar(max)') AS Value
FROM #T
CROSS APPLY (SELECT CAST(AllXml AS XML)) as D(D)
CROSS APPLY D.D.nodes('/error/item') as m(c)