Replace function not working for XML CLOB data

Question

Hi all,
I am generating XML using DBMS_XMLGEN in oracle 10g. After generating the XML, I am replacing the ROW tags with appropriate tag name using REPLACE function. Sometimes the tag name is not replaced correctly.
Eg.I am replacing </Cargo_ROW> with </CargoDetail>. But sometimes in one xml, this tag is coming as </CargoDetROW> or </CargoDetaiW>. The XML size is always huge and the same tag is repeated so many time in the loop and in the same XML, only one tag will be replaced incorrectly. This also not happening for all XMLs.
If any one knows the cause about this problem or solution, please share the same.
thanks,

Answer 1

Yes Anton, you are right..
It was typecasting problem
replace supports clob
Check this out
SQL> declare
  2  xmldata clob;
  3  Begin
  4  xmldata:='<Message transaction_log_id="" extraction_date="25/11/09 09:52:03 AM" versio
  5  <Transaction>
  6  <TransactionType>ORIGINAL</TransactionType>
  7  <ControlNumber>60022449779</ControlNumber>
  8  <BookingHeader>
  9  <PortCodeOriginal>GBSOU</PortCodeOriginal>
10  <Contact>.</Contact>
11  <PhoneContact>.</PhoneContact>
12  </BookingHeader>
13  <PartyInformation>
14  <PartyDetails>
15  <PartyId>10002866</PartyId>
16  <Type>SHIP</Type>
17  <Name1>L LTD.</Name1>
18  </PartyDetails>
19  </PartyInformation>
20  <Cargo>
21  <CargoDetROW>
22  <CargoHeader>
23  <CargoReceivedSeqNo>600015391790</CargoReceivedSeqNo>
24  <CargoId>RW9330P013948</CargoId>
25  </CargoHeader>
26  <CargoDimensions>
27  <Length>1</Length>
28  <Width>2</Width>
29  </CargoDimensions>
30  </CargoDetail>
31  <CargoDetROW>
32  <CargoHeader>
33  <CargoReceivedSeqNo>600015391791</CargoReceivedSeqNo>
34  <CargoId>RW9330P01394AA</CargoId>
35  </CargoHeader>
36  <CargoDimensions>
37  <Length>2</Length>
38  <Width>2</Width>
39  </CargoDimensions>
40  </CargoDetail>
41  <Cargo_ROW>
42  <CargoHeader>
43  <CargoReceivedSeqNo>600015391792</CargoReceivedSeqNo>
44  <CargoId>RW9330P01322</CargoId>
45  </CargoDetaiW>
46  <CargoDimensions>
47  <Length>1</Length>
48  <Width>2</Width>
49  </CargoDimensions>
50  </Cargo_ROW>
51  </Cargo>
52  </Transaction>
53  </Message>';
54  xmldata:=to_clob(regexp_replac(xmldata,'</Cargo_ROW>|</CargoDetaiW>|</CargoDetROW>','</CargoDetail'));
55  xmldata:=to_clob(regexp_replace(xmldata,'<Cargo_ROW>|<CargoDetaiW>|<CargoDetROW>','<CargoDetail>'));
56  dbms_output.put_line(xmldata);
57  end;
58  /
<Message transaction_log_id="" extraction_date="25/11/09 09:52:03 AM"
version="1.0">
<Transaction>
<TransactionType>ORIGINAL</TransactionType>
<Contro
lNumber>60022449779</ControlNumber>
<BookingHeader>
<PortCodeOriginal>GBSOU</Por
tCodeOriginal>
<Contact>.</Contact>
<PhoneContact>.</PhoneContact>
</BookingHead
er>
<PartyInformation>
<PartyDetails>
<PartyId>10002866</PartyId>
<Type>SHIP</Ty
pe>
<Name1>L
LTD.</Name1>
</PartyDetails>
</PartyInformation>
<Cargo>
<CargoDetail>
<CargoHea
der>
<CargoReceivedSeqNo>600015391790</CargoReceivedSeqNo>
<CargoId>RW9330P01394
8</CargoId>
</CargoHeader>
<CargoDimensions>
<Length>1</Length>
<Width>2</Width>
</CargoDimensions>
</CargoDetail>
<CargoDetail>
<CargoHeader>
<CargoReceivedSeq
No>600015391791</CargoReceivedSeqNo>
<CargoId>RW9330P01394AA</CargoId>
</CargoHe
ader>
<CargoDimensions>
<Length>2</Length>
<Width>2</Width>
</CargoDimensions>
<
/CargoDetail>
<CargoDetail>
<CargoHeader>
<CargoReceivedSeqNo>600015391792</Carg
oReceivedSeqNo>
<CargoId>RW9330P01322</CargoId>
</CargoDetail>
<CargoDimensions>
<Length>1</Length>
<Width>2</Width>
</CargoDimensions>
</CargoDetail>
</Cargo>
</Transaction>
</Message>
PL/SQL procedure successfully completed.
SQL> Twinkle
Edited by: Twinkle on Nov 26, 2009 6:05 PM