sql2005中一个xml聚合的例子

该问题来自论坛提问，演示SQL代码如下

1. --建立测试环境
2. setnocounton
3. createtabletest(IDvarchar(20),NAMEvarchar(20))
4. insertintotestselect'1','aaa'
5. insertintotestselect'1','bbb'
6. insertintotestselect'1','ccc'
7. insertintotestselect'2','ddd'
8. insertintotestselect'2','eee'
9. go
10. --测试
11. select*from(selectdistinctidfromtest)a
12. OUTERAPPLY(
13. selectvalue='<root>'+(
14. selectnamefromtestpath
15. whereid=A.id
16. forxmlauto)+'<root/>')b
17. --删除测试环境
18. droptabletest
19. setnocountoff
21. /*--结果
22. idvalue
23. ----------------------------------------------------------------------------------------
24. 1<root><pathname="aaa"/><pathname="bbb"/><pathname="ccc"/><root/>
25. 2<root><pathname="ddd"/><pathname="eee"/><root/>
26. */