Oracle 11g，XML

Question

I am working on Oracle 11g and table structure is

ID - NUMBER
xmlCOL - CLOB

This is my XML data in the table

<DEPARTMENT ID="10" NAME="ACCOUNTING">
    <EMPLOYEES>
        <EMPLOYEE>
            <ID>7934</ID>
            <NAME>MILLER</NAME>
        </EMPLOYEE>
    </EMPLOYEES>
</DEPARTMENT>

Is it possible that I can find the node details based on the value I provide? For eg

Can I search for value MILLER and it returns the node viz. /DEPARTMENT/EMPLOYEES/EMPLOYEE/NAME ?

Answer 1

You can to use extractvalue to get value of node and use it into where expression -

with t as 
(
    select xmltype('
        <DEPARTMENT ID="10" NAME="ACCOUNTING">
            <EMPLOYEES>
                <EMPLOYEE>
                    <ID>7934</ID>
                    <NAME>MILLER</NAME>
                </EMPLOYEE>
                <EMPLOYEE>
                    <ID>123123</ID>
                    <NAME>JOHN</NAME>
                </EMPLOYEE>
            </EMPLOYEES>
        </DEPARTMENT>
    ') as xml_
    from dual
)
select column_value as node, extractvalue(column_value, '/*/NAME') as name, extractvalue(column_value, '/*/ID') as id
  from t, table(xmlsequence(EXTRACT(t.xml_, '/DEPARTMENT/EMPLOYEES/*'))) s
where extractvalue(column_value, '/*/NAME') = 'MILLER'