[XSQL] Displaying PDF stored in database as BLOB

Dear Sirs,
we have PDF stored in the database as BLOB.
I have written a PLSQL function which I call accordingly
<xsql:ref-cursor-function >
digitallibrary.getdocs('{@resource_seqid}')
</xsql:ref-cursor-function>
however what I get is the following
<page>
<rowset>
<row num="1">
<document>255044462D312E320A...</document>
</row>
</rowset>
</page>
instead of having the customer's browser starting up Acrobat.
It looks to me as if the data is the HEX of the BLOB:
25 %
50 P
44 D
46 F
2D -
31 1
2E .
32 2
0A Line Feed
This coincides with what previously reported
"BLOB data is serialized as hex bytes in XSU."
I understand that "XSQL has no built-in support for BLOB data, but it is extensible via user-written action handlers or user-written serializers."
I have the feeling that I should use an appropriate serializer for this purpose but it is not entirely clear to me how ...
Any suggestion is appreciated.
Looking forward your advice.
Regards and thanks
Luca

The following serializer
public void serialize(Document document, XSQLPageRequest xsqlpagerequest) throws java.lang.Throwable {
NodeList nodelist=document.getElementsByTagName("*");
xsqlpagerequest.setContentType("application/pdf");
OutputStream outputstream=xsqlpagerequest.getOutputStream();
String DocString = new String();
for (int loopIndex=0; loopIndex<=10; loopIndex++) {
display(nodelist.item(loopIndex),"");
if (loopIndex == 6 ) { DocString=displayStrings[loopIndex];}
byte abyte0[] = oracle.xml.sql.core.OracleXMLConvert.convertHexStringToByte(DocString);
outputstream.write(abyte0, 0, abyte0.length);
outputstream.flush();
works fine however the Internet Explorer 5.5 displays the native PDF code instead of firing the plugin... any suggestion ?

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Display PDF stored in database

A page has a region of type âPL/SQL Procedure (anonymous block)â and the following region source:
BEGIN
get_image(3660);
END;
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When the page is executed, a popup window with the title âFile Downloadâ appears and the user is asked whether to open or save the file. If the user chooses to open the file, another popup window appears in which the user is asked to select the program to be used to open the file. If the user selects Acrobat Reader, the PDF image is displayed correctly. How can the image be displayed without any user intervention?
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buf_size INTEGER := 32000;
offset INTEGER := 1;
len NUMBER;
mime_type VARCHAR2(30);
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Vincent

Hi,
Forms can only show binary formats that are wrapped as OLE components and we discourage using this because OLE wont work on teh web, which is the only runtime available for Forms 9i and above.
I suggest writing a Java Servlet that streams the document from the database to the local client
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Problem displaying PDF stored in BLOB column

Hello everyone.
I've been trying to follow this tutorial http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::p11_question_id:232814159006 on displaying PDFs stored in BLOB columns. This is being performed on Apex 4.2, with my DB running 11g. I've got my procedure, which I'll post below:
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If I understand correctly, your requirements needs to be broken down into two problems:
1) click link that pops up a window displaying a new APEX page
2) an APEX page the displays the document, not downloads it.
I haven't done #1 (yet).
However, you may be able to generate a URL that points to the new page as part of the SELECT statement for the Report.
This has a related question, but no answer yet:
open pdf in popup browser window
The key is target="_blank" for the anchor tag.
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If that doesn't work, a Dynamic Action that does some magical JavaScript stuff may be needed.
For #2, I lost the URL that showed how to display a PDF as part of a "form" page.
From what I remember:
Start with a blank page with one blank HTML region (all the Items go in the HTML region)
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part I forgot Create a Data Manipulation Process
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- Filename Column: (column name) -- I highly recommend you have this.
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Also, you will need a Browser Plugin for each of the MIME Types (otherwise, the browser may try to 'download' the file)
Browsers can handle Image types internally. Adobe's plugin can handle PDFs. I don't know about Word/Excel.
Again, I don't remember the exact details, but that should cover most of it.
MK

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SQL> create or replace package image_get
2 as
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5 /
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3
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14
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*Always post code wrapped in <a href=http://wikis.sun.com/display/Forums/Forums+FAQ#ForumsFAQ-Arethereanyusefulformattingoptionsnotshownonthesidebar?"><tt>\...\</tt> tags</a>:*
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>
Error report:
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SYS.OWA_UTIL", line 356
ORA-06512: at "SYS.OWA_UTIL", line 415
ORA-06512: at "HCLABPRO.PKG_PDF", line 220
ORA-06512: at line 2
06502. 00000 - "PL/SQL: numeric or value error%s"
>
The error stack indicates that the exception is being raised in <tt>HCLABPRO.PKG_PDF</tt>: what is <tt>HCLABPRO.PKG_PDF</tt>? Does this actually have anything to do with the procedure above?
I get the error message as below when i execute the procedure above;How do you execute it?
What happens when it's executed without the <tt>when others...</tt> built-in bug?

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[XSQL] Displaying PDF stored in database as BLOB

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