The size of a XML document stored in a XMLType table
Is there a way to find out (via SQL) the size of a XML document stored in a XMLType table or XMLType column (storage OR based)?
For instance in the way you could it retrieve if the XML document was stored in an XMLType column (CLOB based)
SQL> r
1 select dbms_lob.getlength(t.gegevens.getclobval()) "SIZE"
2 from hgo.hgo010_detam t
3* where rownum < 2
SIZE
2750
Is there a way to find out (via SQL) the size of a XML document stored in a XMLType table or XMLType column (storage OR based)?
For instance in the way you could it retrieve if the XML document was stored in an XMLType column (CLOB based)
SQL> r
1 select dbms_lob.getlength(t.gegevens.getclobval()) "SIZE"
2 from hgo.hgo010_detam t
3* where rownum < 2
SIZE
2750
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Read xml-structure from a xml-document stored in a xmltype-column?
Hello,
I have several xml-documents stored in a table with a xmltype-column.
Is it possible to read the structure of one xml-document? I need to know what data are exists in the xml-documents.
I had read some hours here, but I dont find a suitable solution for that.
To make a example, what I need:
I have stored the following xml-document in the table:
<?xml version = '1.0'?>
<ROWSET>
<ROW num="6">
<EMPLOYEE_ID>105</EMPLOYEE_ID>
<FIRST_NAME>David</FIRST_NAME>
<LAST_NAME>Austin</LAST_NAME>
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<DEPARTMENT_ID>60</DEPARTMENT_ID>
</ROW>
</ROWSET>
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Regards,
MarkHi,
I was on a wrong way. The datatype is not stored in xml, this was a mistake from me.
I needed something to printout some values from a xml-file. This xml-file was generated bei MS Excel. The data are in /Workbook/Worksheet/Table/Cell and I didnt know how to access it.
I write for that the following:
DECLARE
v_xml XMLType;
v_doc dbms_xmldom.DOMDocument;
v_node dbms_xmldom.DOMNode;
type t_values is table of varchar2(2000) index by binary_integer;
v_values t_values;
type t_table is table of t_values index by binary_integer;
v_table t_table;
procedure node_output (v_node in out dbms_xmldom.DOMNode)
is
v_nodelist1 DBMS_XMLDOM.DOMNodeList;
v_nodelist2 DBMS_XMLDOM.DOMNodeList;
v_anzahlnodes number;
v_anzahlrows number;
v_node_c dbms_xmldom.DOMNode;
v_xmlmitarbeiterid number;
begin
v_nodelist1 := dbms_xmldom.GETCHILDNODES(v_node);
v_anzahlrows := DBMS_XMLDOM.GETLENGTH(v_nodelist1);
if v_anzahlrows = 0 or DBMS_XMLDOM.GETNODENAME(v_node) = 'Table'
then
if v_anzahlrows > 0
then
for i1 in 0..v_anzahlrows - 1
loop
v_node := dbms_xmldom.Item(v_nodelist1,i1);
v_nodelist2 := dbms_xmldom.GETCHILDNODES(v_node);
v_anzahlnodes := DBMS_XMLDOM.GETLENGTH(v_nodelist2);
for i2 in 0..v_anzahlnodes - 1
loop
v_node := dbms_xmldom.Item(v_nodelist2,i2);
v_node_c := dbms_xmldom.GETFIRSTCHILD(v_node);
v_node_c := dbms_xmldom.GETFIRSTCHILD(v_node_c);
v_values(i2) := DBMS_XMLDOM.GETNODEVALUE(v_node_c);
end loop;
v_table(i1) := v_values;
end loop;
for i1 in 1..v_anzahlrows - 1
loop
select SEQ_XMLMITARBEITER.nextval into v_xmlmitarbeiterid from dual;
for i2 in 1..v_table(i1).count - 1
loop
dbms_output.put_line(v_table(i1)(i2));
end loop;
end loop;
end if;
else
v_node := dbms_xmldom.GETFIRSTCHILD(v_node);
for i in 0..v_anzahlrows - 1
loop
v_node := dbms_xmldom.Item(v_nodelist1,i);
node_output(v_node);
end loop;
end if;
end;
BEGIN
select inhalt into v_xml FROM xmlimport WHERE name = 'F23973/mitarbeiter.xml';
v_doc := dbms_xmldom.newDOMDocument(v_xml);
v_node:= dbms_xmldom.makeNode(dbms_xmldom.getDocumentElement(v_doc));
node_output(v_node);
END;
This gives me all data from a xml-Excel-file. Is there a better way to do that? I have Oracle 10.2.
Regards,
Mark -
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5 begin
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9 end;
10 /
Procedure created.
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2 insProc('/usr/tmp/ROWSET.xml', 'emp');
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4 /
begin
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CREATE OR REPLACE PROCEDURE insertXmlFile( dir VARCHAR2,
file VARCHAR2,
myTable varchar2,
name VARCHAR2 := NULL) IS
theBFile BFILE;
theCLob CLOB;
theDocName VARCHAR2(200) := NVL(name,file);
BEGIN
-- (1) Insert a new row into xml_documents with an empty CLOB, and
-- (2) Retrieve the empty CLOB into a variable with RETURNING..INTO
INSERT INTO xml_documents(XML_DOCUMENT_NM,XML_DOCUMENT_TX)
VALUES('DELETE ME',empty_clob())
RETURNING XML_DOCUMENT_TX INTO theCLob;
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theBFile := BFileName(dir,file);
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dbms_lob.fileOpen(theBFile);
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src_lob => theBFile,
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delete from xml_documents
where xml_document_nm = 'DELETE ME';
COMMIT;
END;
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Can I set the DocumentType for an XML document? If so how? please help
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I am porting some code from jdom to xerces.
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Parse an Aggregate in XML Document using PL/SQL
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However, I need help on how to get the whole aggregate in XML Document stored in CLOB.
sample XML Doc :
<library>
<book>
<title>Oracle Complete Reference</title>
<author>Kevin</Author>
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<video>
<title>Learning C++</title>
<length>2 hours</length>
<video>
</library>
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With the sample XML above, say the input is 'VIDEO', the function will return :
<video>
<title>Learning C++</title>
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<video>
I'll really appreciate any help.
nullI used such an example to parse several Varchar2 strings in a given DB session:
BEGIN
parser := xmlparser.newparser ;
xmlparser.parsebuffer(parser,xmlout) ;
domdoc := xmlparser.getDocument(parser) ;
xmlparser.FREEPARSER(parser) ;
parser.id := -1 ;
nodes := xslprocessor.selectNodes(
xmldom.makenode(domdoc),
'Positionen/Position') ;
for i in 1 .. xmldom.getLength(nodes) loop
node := xmldom.item(nodes,i-1) ;
-- do s/thing with the node
end loop ;
xmldom.freedocument(domdoc) ;
RETURN(komponenten) ;
EXCEPTION
WHEN OTHERS THEN
if parser.id <> -1 then xmlparser.freeparser(parser) ;
end if ;
if domdoc.id <> -1 then xmldom.freedocument(domdoc) ;
end if ;
RAISE ;
END ;
However, after about 2000 of nodes lists parsed, I get an ArrayIndexOutOfBoundsException from XMLNodeCover. Obviously, I should release the nodes or the nodelist, but I have not found any procedure to do this.
Pascal
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