Extracting data from a tag of xml file which is(xml) in a Field of Csv.

Question

We have a xlm script which is stored in the clob column of the csv file. we have to extract one value from the <tag> and reject remaining data.
Sample:-
<ROW>
<ID>100</ID>
<ORDER_DATE>2000.12.20</ORDER_DATE>
<SHIPTO_NAME>Adrian Howard</SHIPTO_NAME>
<SHIPTO_STREET>500 Marine World Parkway</SHIPTO_STREET>
<SHIPTO_CITY>Redwood City</SHIPTO_CITY>
<SHIPTO_STATE>CA</SHIPTO_STATE>
<SHIPTO_ZIP>94065</SHIPTO_ZIP>
</ROW>
Required Output:-
We have to extract the "500 Marine World Parkway"
from tag <SHIPTO_STREET>
and the above sample xml file is in one of the column which is clob datatype
Any idea How to perform the above activity in PL/SQL ?

Answer 1

As BP suggested you can use an XPATH query to extract that information from your XML. However it depends a bit on your XML data.
Here are two examples:
one row XML
select extractvalue(xmltype('<ROW>
<ID>100</ID>
<ORDER_DATE>2000.12.20</ORDER_DATE>
<SHIPTO_NAME>Adrian Howard</SHIPTO_NAME>
<SHIPTO_STREET>500 Marine World Parkway</SHIPTO_STREET>
<SHIPTO_CITY>Redwood City</SHIPTO_CITY>
<SHIPTO_STATE>CA</SHIPTO_STATE>
<SHIPTO_ZIP>94065</SHIPTO_ZIP>
</ROW>')
,'//SHIPTO_STREET/text()') as result
from dual;
RESULT
500 Marine World Parkway
multi rows XML
select extractvalue(column_value,'SHIPTO_STREET/text()') as result
from table(xmlsequence(extract(xmltype('<ROWS>
<ROW>
  <ID>100</ID>
  <ORDER_DATE>2000.12.20</ORDER_DATE>
  <SHIPTO_NAME>Adrian Howard</SHIPTO_NAME>
  <SHIPTO_STREET>500 Marine World Parkway</SHIPTO_STREET>
  <SHIPTO_CITY>Redwood City</SHIPTO_CITY>
  <SHIPTO_STATE>CA</SHIPTO_STATE>
  <SHIPTO_ZIP>94065</SHIPTO_ZIP>
</ROW>
<ROW>
  <ID>200</ID>
  <ORDER_DATE>2000.12.20</ORDER_DATE>
  <SHIPTO_NAME>Adrian Howard</SHIPTO_NAME>
  <SHIPTO_STREET>Test</SHIPTO_STREET>
  <SHIPTO_CITY>Redwood City</SHIPTO_CITY>
  <SHIPTO_STATE>CA</SHIPTO_STATE>
  <SHIPTO_ZIP>94065</SHIPTO_ZIP>
</ROW>
</ROWS>'
),'ROWS/ROW/SHIPTO_STREET')));
RESULT
500 Marine World Parkway
Test