SQL Server脚本-选择根的xml子节点作为（n）varchar

Question

I need to create a SQL Server script and a part of the script is selecting the names of the immediate child nodes of the root node and convert it to a (n)varchar . I don't need the attributes or content of the node.

This is an example of the xml:

declare @XML xml

set @XML = 
'
<config>
  <module1 />    
  <module2 />  
</config>
'

I want the result like this:

• module1
• module2

Note that the xml is not hardcoded and can have many different child nodes.

I've already taken a look at this (msdn)link but at first sight it doesn't seem possible with those XML methods.

Many thanks, Kjell

Answer 1

If you want the XML of the child nodes you mentioned you can use the Query method, for example;

select 
    cast(@XML.query('//GuiConfiguration/Activities') as nvarchar(max)), 
    cast(@XML.query('//GuiConfiguration/Reservations') as nvarchar(max))

EDIT: Answer to refined question

To get the names of the immediate child nodes of the root you can use this;

select
    cast(t.c.query('local-name(.)') as nvarchar(max))
from
    @xml.nodes('//*[1]/child::node()') as t(c)