Using BFile in Developer6

Hi,
I have created a table in Oracle 8i, which has one BFILE field.
I have inserted 2-3 records in this table, where BFile field
contains word document.
Now I want to view this document using a Form in Developer6.
How do i do it?
I tried using by creating default block but query on records
failed, due to BFILE field.
Then I tried using OLE controls. But we couldn't link BFILE
field with OLE controls.
Please help me !
TIA,
Ashwani
null

I tried , but the process runs "before header", thus before the item is being assigned a value by the parent page, so I get an error that the process cannot find the filename (which it suppose to get from item :P2_FILENAME).
Edited by: Yoni Sade on Nov 9, 2009 5:53 PM

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How to use bfile in forms

Hi,
I'm using webutil for viewing files(doc,pdf,txt).These files are stored in FTP server.
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I've a doubt regarding the handling of the image. For example i've the images of the persons amounting to 50,000(the number will be increased in future). So i just want to know which is the better menthod. is it better to store all the images in the database or to store in local OS and use Bfile concept. I'm using Forms 6i and Forms 10g(10.1.2.0.2). OS: Windows XP
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Edited by: Alok Dubey on Nov 14, 2008 5:43 PM

But the total number (i.e.., 50,000) is scaring me to use the BlobI don't think the database will cause problem just due to the amount of data stored in blobs. Of coure you would have to check which parameters to set for the blobs to make storage efficient. If
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How to convert file format using bfile datatype

<pre>
Hi all,
Assume, i has a table BFILE_IMAGE and it table structure is similar like:
SQL> desc bfile_image;
Name Null? Type
IMAGE_ID NUMBER
FILE_NAME VARCHAR2(30)
IMAGE BINARY FILE LOB
SQL>
Is that impossible if we can use process() function with bfile datatype? similar like:
ordsys.ordimage.process(image,'fileFormat=JPEG contentFormat=24BITRGB');
The line above is work with blob datatype but doesn't with bfile datatype. Can you please give me some idea how to deal with it.
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Kevin

a BFILE is content stored outside the Oracle database. It is a read-only object.
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Using bfile

hello
please how can i get a full example show me how to insert picture through form in field data type is bfile
where i need to save picture out database using bfile field
i have not any idea about what should be do in form builder 6i/10g
i create table have structure (id number,pic bfile)
and i create directory
and grant read,write on this directory to my_user
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thanks

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Urgent !!!!!!!!!!!! regarding CREATE JAVA CLASS USING BFILE

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null

use loadjava

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Look at
Re: How to store a "word document" on Data Base?
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Edited by: Yoni Sade on Nov 8, 2009 9:40 PM

I tried , but the process runs "before header", thus before the item is being assigned a value by the parent page, so I get an error that the process cannot find the filename (which it suppose to get from item :P2_FILENAME).
Edited by: Yoni Sade on Nov 9, 2009 5:53 PM

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Hi,
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ORA-22285: non-existent directoryYou have to create a database directory first:
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JavaBean does d othe job for you but it requires signing process; I used it when I was working on forms6i for our project.
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null

The advantage to using BFILE storage for your is that it's an easy way for Oracle
Multimedia to access your images without importing them into the database.
The disadvantages are that the images are read-only. If you want to scale an image or
convert to a different format, you will need to create a destination image to hold the result. This
will necessarily be a BLOB based image.
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That said, below is a code snippet that shows how to insert a BFILE based image, set it's properties, show it's properties and select the BFILE locator to access the content. You would need to use the DBMS_LOB package (in PL/SQL) to read the content. From other APIs, (e.g., Java) you would need to use the proper interfaces to access the BFILE.
Note that you need change the USER, PASSWORD fields in the code. Also you should change the directory location and image name for your use.
-- create a directory object indicating where the images are stored;
create or replace directory imgdir as '/tmp';
-- and grant permission to read to a user;
grant read on directory imgdir to <USER>;
conn <USER>/<PASSWORD>;
-- create the images table
create table images(id integer primary key, image ordsys.ordimage);
set serveroutput on
declare
obj ordsys.ordimage;
begin
-- use the init('FILE', <SRC_LOCATION>, <SRC_FILE>) function
-- to create an ORDIMAGE object with a BFILE source
insert into images(id, image)
values(1, ordimage.init('FILE', 'IMGDIR', 'wizard.jpg'))
returning image into obj;
-- lets see if the image source is local or not
if(obj.isLocal()) then
dbms_output.put_line('image source is local');
else
dbms_output.put_line('image source is NOT local');
end if;
-- set the properties of the image object
obj.setProperties();
-- and update the row
update images set image=obj where id=1;
commit;
end;
column height format 99999
column width format 99999
column mimetype format a30
column length format 999999
-- let's see what we have
select t.image.getHeight() as "height"
, t.image.getWidth() as "width"
, t.image.getMimetype() as "mimetype"
, t.image.getContentLength() as "length"
from images t
-- fetch a BFILE handle to the content
declare
bf BFILE;
length number;
begin
select t.image.getBfile() into bf
from images t
where t.id=1;
-- use the DBMS_LOB interface to find out size of image
length := dbms_lob.getLength(bf);
dbms_output.put_line('length of BFILE is ' || length);
end;
---What we get when we run the code
Connected.
Directory created.
Connected.
Table created.
image source is NOT local
PL/SQL procedure successfully completed.
height width mimetype length
399 485 image/jpeg 92552
length of BFILE is 92552
PL/SQL procedure successfully completed.
SQL>

Using BLOB,BFILE

hello Gurus,
I want to know these two things
٭ How to use BLOB data type?
٭ How to use BFILE data type?
Regards
Santosh Kumar

Apart from what Raford mentioned, you should also keep in mind about the security aspect of it.
Documents stored in db are more secured or can be made more secured.
When you use bfiles, they are stored in OS and thus can be deleted intentionally or by mistake.
Performance wise, they donot make much difference even though bfile have an overhead of going to file system to fetch the fiiles/information.

How to use a Java Resource in my java source

Hello,
I need to know how to use my external JAR I loaded in the database using this line below:
CREATE OR REPLACE JAVA RESOURCE NAMED "MyJar" USING BFILE (BFILE_DIR,'MyExternal.jar');
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==========Java Source importing the Jar===================
package com.gemalto.ws.snmp;
import java.io.IOException;
import java.util.Vector;
import org.snmp4j.Snmp;
import org.snmp4j.smi.*;
import org.snmp4j.TransportMapping;
import org.snmp4j.transport.DefaultUdpTransportMapping;
import org.snmp4j.CommunityTarget;
import org.snmp4j.mp.SnmpConstants;
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==========================
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Thks

The JAR is already load by using CREATE JAVA RESOURCE ... or "loadjava -resolve –force -user p/p@SID –genmissing -jarasresource MyJar.jar"
If we can create a resource by SQL or loadjava, how can I use it in my java code?
Edited by: 847873 on 28 mars 2011 06:05
Edited by: 847873 on 28 mars 2011 06:07

Using BFile in Developer6

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