Rendering images based on BLOB columns

Hello
I'm using JDevelpor 10G ..
I want to render image from BLOB column , and its the first time working with servlet , I read this article
http://www.pascalalma.net/2008/04/22/oracle-adf-medior-rendering-images-based-on-blob-columns/
and I want to ask some questions ??
- How can I check that the servlet is run .. I use this to call the servlet "" Do not laugh .. I am really new "
<af:objectImage source="/render_image?img_id=#{row.ImageId}"/>
You should read the article to understand my question
rgds

done , my problem was with mapping
If you have any problem with this case I can help
contact me
[email protected]

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How to insert a pdf or jpeg image into a blob column of a table

How to insert a pdf or jpeg image into a blob column of a table

Hi,
Try This
Loading an image into a BLOB column and displaying it via OAS
The steps are as follows:
Step 1.
Create a table to store the blobs:
create table blobs
( id varchar2(255),
blob_col blob
Step 2.
Create a logical directory in the database to the physical file system:
create or replace directory MY_FILES as 'c:\images';
Step 3.
Create a procedure to load the blobs from the file system using the logical
directory. The gif "aria.gif" must exist in c:\images.
create or replace procedure insert_img as
f_lob bfile;
b_lob blob;
begin
insert into blobs values ( 'MyGif', empty_blob() )
return blob_col into b_lob;
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dbms_lob.fileopen(f_lob, dbms_lob.file_readonly);
dbms_lob.loadfromfile( b_lob, f_lob, dbms_lob.getlength(f_lob) );
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Step 4.
Create a procedure that is called via Oracle Application Server to display the
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create or replace procedure get_img as
vblob blob;
buffer raw(32000);
buffer_size integer := 32000;
offset integer := 1;
length number;
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end loop;
exception
when others then
htp.p(sqlerrm);
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OR
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3. Insert the image file into table using "Create directory NAME as IMAGE_PATH" and
then use "Insert into TABLE (consecutive, BLOB_OBJECT, MIME_OBJECT) values (sequence.nextval,
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variable_consecutive.
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Regards,
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Inserting Image into a BLOB column in Oracle9i

Hi,
I am unable to insert image into a BLOB column. I am using Forms 6i REL 2 and Oracle 9i. But I could do it on Oracle 8i with same Forms version.
Same thing is true for CLOB in 9i.
Would you please try with this code?
TABLE
Create table x
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Name CLOB,
Pict BLOB);
WHEN-BUTTON-PRESSED trigge
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Hi all,
I'm trying to print the report with an image. I've stored the image in a Blob column and the format of the image is Jpg.
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Edited by: Alok Dubey on Dec 1, 2008 12:55 PM

Hi all,
I'm trying to print the report with an image. I've stored the image in a Blob column and the format of the image is Jpg.
I'm using the Reports 10g(10.1.2.0.2). When I'm trying to print the report, I'm getting an error Rep-62203. I want to know whether there are any settings which i need to set to display the image item. I mean to say that are there any registry settings.
Regards,
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Hi hyue,
Thanks for visiting Apple Support Communities.
If you would like to add an image to a project in iMovie for iOS, see this article for helpful steps:
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http://support.apple.com/kb/PH3171
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hi ,
please help me with this
I am trying to insert a picture into a blob column of a table and show that in oracle forms , but not able to do it .
I am using version 10g for both database and forms .
Please tell me how to insert a picture in a blob column that is stored in my 'c:\test' folder
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here
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I am working on a solution that consists to send an image from a BLOB column to a Java Bean through Forms via the Set_Custom_Property().
Unfortunately, I encounter a strange problem. 5 characters are bad interpreted, so the final image is totaly ugly.
I get the chunk of image like this:
FUNCTION Get_Chunk RETURN VARCHAR2
IS
    LN$amt NUMBER := GN$Chunk ;
    LR$raw RAW(32000);
BEGIN
    LN$amt := GN$Chunk ;
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    dbms_lob.READ(GL$Blob, LN$amt, GN$Pos, LR$raw);
    GN$Pos := GN$Pos + LN$amt;
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EXCEPTION
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        RETURN NULL ;
END Get_Chunk ;The chunks are sent to the bean that rebuild the binary image with the getBytes() methods.
For an unknown reason, 5 characters are misunterpreted:
129
141
143
144
157
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Images in Blob Column..

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ASR

Hi,
Your question is not according to Forum. You must post your thread (for immediate response) on Oracle Forum for Dot Net/VB Forum.
But i'm going to accept your request.
I've inserted/ saved image in oracle 9i database. And As well i've read/displayed image into Picture Control from Oracle9i database.
But i've used C# Dot Net (Visual Studio 2005 Professional) as front hand tool.
Sorry for VB. One thing IMPORTANT:
I'm going mention code in C# you can Covert into VB Dot Net. Through Online FREE Compiler(www.developerfusion.co.uk/ and click on utilities.)
--------------------------------Here Below is C# Code ----------------------------------------------------
Con.Open();
string myquery = "Select Form_id,Emp_image From Employee where Form_id=2840";
OracleCommand cmd = new OracleCommand(myquery, con);
OracleDataReader dr = cmd.ExecuteReader();
Boolean recordExist = dr.Read();
if (recordExist)
//Now displaying Picture.
MessageBox.Show("Pic is being loaded by C#. Now");
OracleLob blob = dr.GetOracleLob(1); //Column #, Emp_image
Byte[] BLOBData = new Byte[blob.Length];
//Read blob data into byte array
int i = blob.Read(BLOBData, 0, System.Convert.ToInt32(blob.Length));
//Get the primitive byte data into in-memory data stream
MemoryStream stmBLOBData = new MemoryStream(BLOBData);
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MessageBox.Show("Now i'm reseting it.");
Picbox1.SizeMode = PictureBoxSizeMode.StretchImage;
Else
MessageBox.Show("Reocrd not found against this id.");
Hopefully it helps you. If it is still difficult to understand don't shy to make query.
---

Insert Image to BLOB column

Hi,
How can i insert a image/largefile into table (having BLOB column) from sql plus?
Thanks

Hi!
Do this with PL/SQL.
CREATE TABLE image_tbl
filename VARCHAR2(4000),
image   BLOB
DECLARE
      v_blob       BLOB;
      v_srcfile    BFILE;
BEGIN
      DBMS_LOB.CreateTemporary(v_blob, TRUE);
      DBMS_LOB.Open(v_blob, dbms_lob.Lob_ReadWrite);
      v_srcfile := Bfilename('IMAGE_DIR', 'image.gif');
      DBMS_LOB.FileOpen (v_srcfile, dbms_lob.File_ReadOnly);
      DBMS_LOB.LoadFromFile(v_blob, v_srcfile, DBMS_LOB.GetLength(v_srcfile));
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      VALUES ('image.gif', EMPTY_BLOB());
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      SET image = v_blob
      WHERE filename LIKE 'image.gif';
      DBMS_LOB.FileClose(v_srcfile);
      COMMIT;
END;I hope that one will help you.
yours sincerely
Florian W.

Rendering images based on BLOB columns

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