Insert large XML files into 11g

Question

Can anyone post an example of inserting XML files into a XMLType table? I can use the following to insert files into a CLOB table without problems.
$lob = oci_new_descriptor($conn, OCI_D_LOB);
          $sql = "insert into D (DATASET_ID, XML_DATA)
values(
               dataset_id_seq.NEXTVAL,
               EMPTY_CLOB( )
          ) RETURNING XML_DATA into :the_blob";
          $stmt = oci_parse($conn, $sql);
          oci_bind_by_name($stmt, ':the_blob', $lob, -1, OCI_B_CLOB);
          oci_execute($stmt, OCI_DEFAULT);
          if ($lob->savefile($f)){
               oci_commit($conn);
               echo "Blob successfully uploaded\n";
          }else{
               echo "Couldn't upload Blob\n";
          oci_free_descriptor($lob);
          oci_free_statement($stmt);

Answer 1

A small example to insert xml file into oracle xml DB
//$Xml contains the xml file you want to insert into the database.
$insertXML = <<<EOF
DECLARE xml CLOB := $Xml; begin INSERT INTO purchaseorder_as_column VALUES (1,XMLType(xml)); end;
EOF;
$stid = oci_parse($c, $insertXML);
oci_execute($stid);
//retrieve the xml data from the that table
$sql = "select XMLTYPE.GetClobVal(xml_document) from purchaseorder_as_column where id=1";
$stid = oci_parse($c, $sql);
oci_execute($stid);
$res = oci_fetch_row($stid);
$xmldoc = $res[0]->load();
//Then use simple xml extensions or others as you like to deal with the XML document
$sxe = simplexml_load_string($xmldoc);
//other operations with tthe xml data
var_dump($sxe);