Node size

Question

Hi All,
I have XML with below structure (str1). It is used for export records from one database to other.
<DATAEXPORT>
<OPTIONS>
<EXPORTTYPE>DataReplication</EXPORTTYPE>
<FORMAT>DataExport</FORMAT>
<VERSION>0.1</VERSION>
</OPTIONS>
<REPLICATIONDATA>
<DATARECORDS>
<RECORD DataRecord_Id="38457" DataClass_Id="379" Object_Id="1">
<FIELDS>
<FIELD NAME="CONDITIONRULE_ID" VALUE="" />
<FIELD NAME="CTX_ID" VALUE="1045876" />
<FIELD NAME="DESCRIPTION" VALUE="" />
<FIELD NAME="ID" VALUE="1" />
<FIELD NAME="MTX_ID" VALUE="">
<CLOB>
<![CDATA[IFNFTEVDVAogIGlGaW5QcmludC5mdkdldEFQQWRkcmVzcyhBUEluc3RhbmNlX0lkLEFQTmFtZV9JZCxERnJvbSwyKQkJSW52VXJ6RG9zdGVwb3dlCiAsaUZpblByaW50LmZ2R2V0VGFyaWZmUGxhblZhcmlhbnQoVGFyaWZmUGxhblZhcmlhbnRfSUQpICUludlRhcnlmYQogLGlGaW5QcmludC5mdkdldFRhcmlmZlBsYW4oVGFya
WZmUGxhGxhbl9JZCwgVGFyaWZmUGxhblZhcmlhbnRfSWQgLyosIFBhY2thZ2VfSWQsIFByb2R1Y3RfSWQqLwpPUkRFUiBCWSBtYXgoRGlzcGxheU9yZGVyKSkgIEludgkoniec==]]>
</CLOB>
</FIELD>
</FIELDS>
</RECORD>
<RECORD DataRecord_Id="38458" DataClass_Id="378" Object_Id="2">
<FIELDS>
<FIELD NAME="CONDITIONRULE_ID" VALUE="12" />
<FIELD NAME="CTX_ID" VALUE="12121" />
<FIELD NAME="DESCRIPTION" VALUE="" />
<FIELD NAME="ID" VALUE="2" />
<FIELD NAME="MTX_ID" VALUE="U0VMFUiBCWSBEaXNw" />
</FIELDS>
</RECORD>
</DATARECORDS>
</REPLICATIONDATA>
</DATAEXPORT>
Now there is procedure :
PROCEDURE rLoadBLOB(pl_XMLBlob IN OUT NOCOPY BLOB, pi_CopyOperationId IN NUMBER)
IS
vx_XML XMLTYPE;
vi_NewId NUMBER;
BEGIN
vx_XML := XMLTYPE.CreateXML(pl_XMLBlob, NLS_CHARSET_ID('UTF8'), NULL);
END;
which create XMLTYPE from BLOB. BLOB contains XML data in structure str1.
When run procedure rLoadBLOB with big CDATA then ORA-31167 is raised.
But when I execute PL/SQL block
declare
x xmltype;
c clob;
begin
select content into c from xFDRDATAFILES where rownum = 1;
x := xmltype.createxml(c);
insert into test_blobs values (null, x.getclobval());
end;
there is no exception. Column Content contains text identical to passed to
rLoadBLOB. What do you think about it?
Anyway, there is no way to move big binary data inside XMLType ?
Regards,
Peter

Answer 1

The current limitation in XML DB is that a single text node cannot contain more than 64K. This limitation is due to be released in a future release of the database