Manipulate BLOB column data

Hi,
I've database Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
I need help on manipulating BLOB column data. It is storing .msg file. I want to modify its 'Subject:' line. Below query gives me position of Subject line but when I'm trying to read its content before modifying it then it is giving me error as ORA-06502: PL/SQL: numeric or value error: raw variable length too long:
SELECT dbms_lob.substr(case_content, dbms_lob.instr( blob_column, utl_raw.cast_to_raw('Subject')),50)
FROM my_table
But below query gives me position properly:
SELECT dbms_lob.instr( blob_column,utl_raw.cast_to_raw('Subject'))
FROM my_table
Thanks in advance.
Regards,
Chintan

Firstly I would be wary of doing any string manipulation of binary data (.msg file). Secondly are you sure you have the parameters in dbms_lob.substr the correct way round: http://docs.oracle.com/cd/E11882_01/appdev.112/e25788/d_lob.htm#i999349 You are getting the substring of case_content, starting with an offset of 50 and taking n bytes/chars where n is the postion of hte first occurence of "Subject" in case_content.
Ben

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876841 wrote:
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' Field - The OLE object field in table T to store the data in.
' RETURN:
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FileLength \ 1000)
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T.Edit
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null

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"AULT))"
IMP-00003: ORACLE error 959 encountered
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Hello,
I am getting the following errors when I am trying to insert in a BLOB in the oracle 9i database:
java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1 ORA-06502: PL/SQL: numeric or value error ORA-06512: at line 205 ORA-22297: warning: Open LOBs exist at transaction commit time
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String outputXML = outputXML //Some huge string having a length of 52k
String pKey = "DATA-WORKATTACH-URL MELLONFINCORP-GSS-CPG E-444!20061130T211932.030 GMT";
String createDateTime = "20061212T145931.448 GMT";
String createOpName = "Haque, Nadeem";
String createOperator = "ADCDTB6";
String createSystemID = "WFE";
String insName = "TESt INS";
String objClass = "Data-WorkAttach-Note";
String updateDateTime = "20061207T191900.510 GMT";
String updateOpName = "Haque, Nadeem";
String updateOperator = "ADCDTB6";
String updateSystemID = "WFE";
String label = "This is a test for label";
String attachDate = "20061207T191900.510 GMT";
String attachedBy = "Nadeem";
String attachName = "Nadeem Haque";
String note = "This is a test note";
String refObjectKey = "E-438!20061130T211932.030";
String replicationDate = "20061207T191900.510 GMT";
try{
java.sql.PreparedStatement pstmt = null;
java.sql.Statement stmt = null;
java.io.OutputStream tempBlobOStream = null;
oracle.sql.BLOB tempBlob = null;
javax.naming.Context ctx = new javax.naming.InitialContext();
tools.findPage("tempWorkPage").putString ("testctx", ctx.toString());
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup("jdbc/gswWorkflowReportingData");
tools.findPage("tempWorkPage").putString ("testds", ds.toString());
java.sql.Connection conn = ds.getConnection();
tools.findPage("tempWorkPage").putString ("testconn", conn.toString());
java.sql.ResultSet lobDetails = null;
     try{
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          pstmt.setString(7, updateDateTime);
          pstmt.setString(8, createOpName);
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          pstmt.setString(10, createSystemID);
          pstmt.setString(11, insName);
          pstmt.setString(12, objClass);
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          pstmt.setString(16, label);
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          tempBlob.open(oracle.sql.BLOB.MODE_READWRITE);
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          tools.findPage("tempWorkPage").putString ("pos3", "at pos3");
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tempBlobOStream.close();
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          lobDetails.close();
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          stmt.close();
          stmt = null;
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          if (conn != null) {
          try { conn.close(); } catch (java.sql.SQLException e) { System.out.println(" Error while Freeing Connection" + e.toString()); }
          conn = null;
catch(java.lang.Exception e)
     tools.findPage("tempWorkPage").putString ("LangException", e.toString());
     e.printStackTrace();
}

Hello,
I am getting the following errors when I am trying to
insert in a BLOB in the oracle 9i database:
java.sql.SQLException: ORA-00604: error occurred
at recursive SQL level 1 ORA-06502: PL/SQL: numeric
or value error ORA-06512: at line 205 ORA-22297:
warning: Open LOBs exist at transaction commit
time
You're doing exactly what the error says, that is committing with an open LOB. Look at the following piece of code: you write in the LOB, you flush it and then commit. There is no closing of the LOB stream before committing.
Try putting the tempBlobOStream.close() instruction before the commit.
// Write the data into the temporary CLOB from the
he byte array
          tempBlobOStream.write(ba);
          // Flush and close the stream
          tempBlobOStream.flush();
nn.commit();
          //Close everything
tempBlobOStream.close();

Need to create link to Word Doc in blob column in search results report

I got the Oracle Text boolean search of word documents in a blob column of a table working.
Now I need to be able to create a link in the results report.
I know that Oracle creates a link for each document in the column when you attach a file, I just need to know what the link should be to allow users to open the document in the search results report.
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That works, but I can't get it to link to the resume file.
Here is the code I'm using for the link
javascript:popupURL("#RESUMEL#")
This just give me an error page and the the link is
http://server-namer:8080/apex/[datatype]
the error is
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Thanks again!
Edited by: gjones77 on Dec 2, 2008 6:14 AM
Edited by: gjones77 on Dec 2, 2008 7:08 AM

It is within the table I believe (I'm not a DBA or a developer) since I created a BLOB column and then used the file browse feature to allow users to attach a resume to the table in order to be able to perform a search of the attached documents.
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When it displays the search results, it doesn't create a link to the document and I can't figure out how to do it.
Here's a link the the instructions I used to create the initial search report with Oracle Text, mind you I only created the index and query, I didn't add in all the link data since they're using documents on websites and I'm using documents in a table.
http://www.oracle.com/technology/products/database/application_express/pdf/apex_text_application_v1.6.pdf
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Edited by: gjones77 on Dec 2, 2008 8:14 AM

Manipulate BLOB column data

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