SQLException while selecting only part of XML document

Question

Hi,
I'm newbie in oracle XML DB. I'm trying to make an example application but I'm still getting an SQLException while selecting only part of my XML document. I'm using oracle 11g release 1.
I have following XML document:
<?xml version = '1.0' encoding = 'UTF-8'?>
<CATALOG>
<CD>
<TITLE>Empire Burlesque</TITLE>
<ARTIST>Bob Dylan</ARTIST>
<COUNTRY>USA</COUNTRY>
<COMPANY>Columbia</COMPANY>
<PRICE>10.90</PRICE>
<YEAR>1985</YEAR>
</CD>
<CD>
<TITLE>Hide your heart</TITLE>
<ARTIST>Bonnie Tyler</ARTIST>
<COUNTRY>UK</COUNTRY>
<COMPANY>CBS Records</COMPANY>
<PRICE>9.90</PRICE>
<YEAR>1988</YEAR>
</CD>
</CATALOG>
and following java code:
import oracle.jdbc.OraclePreparedStatement;
import oracle.jdbc.OracleResultSet;
import oracle.xdb.XMLType;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class Select {
private static String SQL_1 = "SELECT OBJECT_VALUE FROM CATALOG";
private static String SQL_2 = "SELECT extract(OBJECT_VALUE,'/CATALOG/CD/ARTIST') FROM CATALOG";
public static void main(String[] args) throws SQLException {
Connection conn = createConnection();
OraclePreparedStatement stmt = (OraclePreparedStatement) conn.prepareStatement(SQL_1);
OracleResultSet orset = (OracleResultSet)stmt.executeQuery();
while (orset.next()) {
// get the XMLType
XMLType poxml = XMLType.createXML(orset.getOPAQUE(1));
// get the XMLDocument as a string...
System.out.println(poxml.getStringVal());
conn.close();
private static Connection createConnection() {
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection("jdbc:oracle:thin:@hruby.marbes.cz:1521:oracle", "hruby", "password");
return conn;
} catch (SQLException e) {
e.printStackTrace();
return null;
While executing SQL_1 statement everything goes well and I get whole document.
While executing SQL_2 statement I get following exception:
Exception in thread "main" java.sql.SQLException: Only LOB or String Storage is supported in Thin XMLType
     at oracle.xdb.XMLType.processThin(XMLType.java:2817)
     at oracle.xdb.XMLType.<init>(XMLType.java:1238)
     at oracle.xdb.XMLType.createXML(XMLType.java:698)
     at oracle.xdb.XMLType.createXML(XMLType.java:676)
     at Select.main(Select.java:27)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
I expect to get such result:
<ARTIST>Bob Dylan</ARTIST>
<ARTIST>Bonnie Tyler</ARTIST>
any suggestion???
Thanks

Answer 1

OBJECT_VALUE in this case refers to an XMLType datatype (fragment due to the use of "extract"). Convert it on "the fly" to a CLOB using getCLOBVal(). Then pick it up in java as a LOB.