Oracle Pl/SQL:循环通过 XMLTYPE 节点

2021-12-24 00:00:00 xml oracle plsql xmltype

我有一个包含以下内容的 XMLTYPE:

I have a XMLTYPE with the following content:

<?xml version="1.0"?>
    <users>
        <user>
            <name>user1</name>
        </user>
        <user>
            <name>user2</name>
        </user>
        <user>
            <name>user3</name>
        </user>
    </users>

如何在 PL/SQL 中循环遍历所有元素user"?谢谢

How can I loop in PL/SQL through all the elements "user"? Thanks

推荐答案

您可以使用 EXTRACT 和 XMLSequence 遍历元素(将 XML 拆分为不同的块 --这里的用户)像这样:

You can loop through the elements using EXTRACT and XMLSequence (splits the XML into distinct chunks -- here users) like this:

SQL> SELECT extractvalue(column_value, '/user/name') "user"
  2    FROM TABLE(XMLSequence(XMLTYPE(
  3                 '<?xml version="1.0"?>
  4                     <users>
  5                         <user>
  6                             <name>user1</name>
  7                         </user>
  8                         <user>
  9                             <name>user2</name>
 10                         </user>
 11                         <user>
 12                             <name>user3</name>
 13                         </user>
 14                     </users>').extract('/users/user'))) t;

user
--------
user1
user2
user3

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