db2 xml 转 table

版本：DB2 Version 9.1

1.创建测试表，初始化数据

create table emp (doc XML);

INSERT INTO EMP VALUES ('<dept bldg="101">
	<employee id="901">
		<name>
			<first>John</first>
			<last>Doe</last>
		</name>
		<office>344</office>
		<salary currency="USD">55000</salary>
	</employee>
	<employee id="902">
		<name>
			<first>Peter</first>
			<last>Pan</last>
		</name>
		<office>216</office>
		<phone>905-416-5004</phone>
	</employee>
</dept>');

2.利用xmltable方法，将xml格式数据转换为临时table

SELECT X.*
FROM emp,
XMLTABLE ('$d/dept/employee' passing doc as "d"
   COLUMNS
   empID 	INTEGER 	PATH '@id',
   firstname 	VARCHAR(20) 	PATH 'name/first',
   lastname 	VARCHAR(25) 	PATH 'name/last') AS X

结果图：