How to parse a schema with xmltype in oracle?

@raven_corwin 

To parse a XML schema with XMLType in Oracle, you can use the XMLTable function to convert the XML data into relational data. Here is an example of how you can do it:

1. First, create a table to store the XML data:

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CREATE TABLE xml_data (
    id NUMBER PRIMARY KEY,
    xml_data XMLType
);

1. Insert some XML data into the table:

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INSERT INTO xml_data VALUES (1, XMLType('<root>
  <item id="1">Item 1</item>
  <item id="2">Item 2</item>
</root>'));

1. Use the XMLTable function to parse the XML data and retrieve the values:

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SELECT x.item_id, x.item_name
FROM xml_data,
     XMLTable('/root/item'
              PASSING xml_data.xml_data
              COLUMNS
                 item_id NUMBER PATH '@id',
                 item_name VARCHAR2(50) PATH '.'
             ) x;

This query will extract the values from the XML data and convert it into relational data. You can customize the XMLTable function to parse the XML structure based on your schema requirements.