Retreving Image from Blob in forms 6

I am using forms 6 and oracle 9i.i have an image item and on when_button_press trigger i insert an image into the image_item by calling the read_image_file function and then save that image into the database.it gives me a message that 1 transactoion applied and saved. now i want to to retrived that image from database into form.how should i do it.also how will i know whether my image has been saved or not.when i tried to execute query i got message query caused no records to be retreived.
my table name is test_images and i have one column image(blob)

your test_image table better to have another primary key item like file_id number with table trigger to sequence generating its value for IF INSERTING event, or it will have no handle to get the image back.

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Retreving Image from Blob Columns in forms 6i

Hi
I inserted image into oracle database in an BLOB column Using Form6i. The table has only two columns, One is varchar2 and other is BLOB. The time it take for inserting image is very little, but retrieving from database to form is taking time. Can anybody suggest tips to improve the speed of retrieving?
Thanks in advance
Ahamed Rafeeque CH

What are you doing exactly?
select blob_column
from my_tablewithout a WHERE clause retrieves all images. Yes, that may take some time. Be sure to add a WHERE clause.

Problem Displaying image from blob

Hi all,
I m using,
Database : 10g Rel 2
Frontend : DevSuite 10g
OS : WinXp
Browser : IE 6
Problem : In my forms i m displaying images from blob column but some of the images are not displayed. I have tried with all image formats available in combination with all available display quality but no luck. What could be the reason for it and how do i solve it?
Can anyone help me plz?
Thnx in advance.
Imtiaz

Hello,
It is very difficult for us to "guess" what images you can read and what others you cannot.
Maybe you could provide more information on images that are not displayed ?
What is their native format ?
Francois

Display image from BLOB field (png image)

Hello,
On my database i have a function which return BLOB (png image from a webservice)..
Is there some tutorial or sample code how to display a image froma blob field in oracle reports?
thank you

You can create a view and base your report on that view. The view would be something like:
create or replace view my_view as
select my_blob_function() image
from ...In your Report it would just be:
select image
from my_viewNow, I'm not sure if Reports supports png format, though.
There are many examples to be found, e.g.
http://download.oracle.com/docs/html/B10602_01/orbr_dyngraph.htm

Retrieving image from database in form 6i

hello all
i'm working on form 6i...
i have uploded images into the database of customers in my application using READ_IMAGE_FILE.. IT IS FINE...
But when i am trying retrieves records into the form.... i'm getting all the data except image... Image field is showing empty..
How can i get image from database to form
can u plz help me.....
thanks

What data type you used for storing image in database. If it is long raw, then you can place an image item within your data block on form and associate it with the column name. This should populate the image by itself.
Below para is from Forms Help.
Image items can be populated in the following ways:
+1. a fetch from a LONG RAW database column+
An image item in a data block is populated automatically when the end user or the application executes a query in the block. When a fetched image is modified or replaced, Form Builder marks that record as Changed, and the next commit operation saves the new image to the corresponding LONG RAW column in the database.
Note: You cannot write a SELECT statement to select a LONG RAW value INTO an image item.
+2. executing the READ_IMAGE_FILE built-in to read an image from the file system+
+(To dynamically write an image from an image item out to a file, use the built-in procedure WRITE_IMAGE_FILE.)+

How to load images from BLOB to javascript?

hi, Guys:
I need to load thumbnail images from BLOB to multiple markers' infowindow in Google map . I have implemented Google map in APEX. I load the data suchas text for every marker's infowindow from Oracle database table with PL/JSON, and infowindow works fine. Could anyone give me a suggestion or example so I know how to load images to javascript?
Thanks a lot.
Database: Oracle 11g R2
APEX: APEX 4.1
Thanks.
Sam

lxiscas wrote:
hi, VC:
Thanks for your kind reply. I need to render these images out of APEX session, actually in javascript that is related to Google map markers' infowindow.
I checked the documents of APEX_UTIL.GET_BLOB_FILE_SRC, but my impression is I need to use it in APEX instead of javascript if my understanding is correct. I already implemented a procedure with PL/SQL to load images from a BLOB column in Oracle database. But the problem is, how can I pass it to javascript code out of APEX to javascript (I could pass text or number from APEX to javascript with PL/JSON though,But I assume that still google map will be within a valid apex session? if so you should be able to use the above api.
Basically what this api does is generates a kind of url to each blob in the database, not sure how google api's deal with this though. Why don't you give it a try?
The other option is to make your pl/sql procedure public and then you can generate the json to include the images urls such as:
     "employees" : [{
               "firstName" : "John",
               "lastName" : "Doe",
               "imgSrc" : "http://somewhere/db_schema.your_download_proc?p_file=#ID#",
               "firstName" : "Anna",
               "lastName" : "Smith"
               "imgSrc" : "http://somewhere/db_schema.your_download_proc?p_file=#ID#",
               "firstName" : "Peter",
               "lastName" : "Jones"
               "imgSrc" : "http://somewhere/db_schema.your_download_proc?p_file=#ID#",
}And then you can use this new attribute to populate the images in javascript using standard img tag
See this tutorial http://docs.oracle.com/cd/E14373_01/appdev.32/e13363/up_dn_files.htm
I did not find any method in PL/JSON to pass image object)? So far I only found example to load images from local files to javascript.Hmm..I don't think you should load image objects.
Vikram

Image from BLOB now showed when page cache set

Hello,
I have a page that display images from BLOB,
After setting page cache to 1hour, page load faster but images not showed.
Please help me on this.
Thank you.

Hi Halit,
For me i dont thing, this problem occurred. As i checked by setting the page cache to 1 hour. After that images loaded normally as usual.
I tried with my mozilla browser. In which browser you tried, may be your browser fault.
Kindly check it.
Brgds,
Mini
Mark Answers Promptly

Unable to download image from DB in forms 10g using webutility

Hi All,
I want to download blob image from db to client I am using below code in a button when i press button i get this error: ORA-04067
Any one please help.
declare
vboolean boolean;
vfilename varchar2(120) := 'J:\img'||:employees.employee_id||to_char(sysdate,'DDMMRRRR_HH24MISS')||'.jpg';
begin
vboolean :=
webutil_file_transfer.DB_To_Client_With_Progress
( vfilename,
'employees',
'picture',
'employee_id = '||:employees.employee_id,
'Downloading from Database',
'Wait to Complete');
client_host('cmd /c start '||vfilename);
end;

Hello Francois,
Thanks for response!
I compiled the webutil_db package in database and it is in the forms user schema, i got the same error message as i get in the forms
actual error message is both in db compilation and in the forms execution
ora-04067 not executed, package body "<user>.webutil_db" does not exist.

How to retreve images from DICOM

Hi ,
I would like to ask a question regarding DICOM objects in database 11g .
I would like to develop an application in java where i can read from dicom objects and display them in the web application (kinda dicom viewer)
The question is how can i display the images from DICOM object , or the video ? If a dicom objects has more than one image how can i display them all?
I was reading the samples about converting dicom in OrdImage but can i get all the images from 1 dicom object and display them all ?
Can anyone give me a suggestions am getting really confuse with all this .
Thannks in advance,
Regards!

This will be part of my application in java . So i need to develop something mine . What am looking for is how i can view from my web applications all pics of one dicom file and even video if there are ?
Any help or hint for this? Or if this can be done with the java api that oracle has?
Thanks

How to display images from BLOB column via APEX 4.0

Hello,
I did the following in order to display images of two Oracle records on the APEX page. I am using APEX Version : 4.0.1.00.03 , Oracle DB Version : 10.2.0.4.0.
1. Created An oracle table TEST_FORM
with 3 columns
( ID number, MIME_TYPE varchar2(255) , Image BLOB )
2. Inserted two records
10001, image/gif, ( actual image1)
10002, image/gif, ( actual image2)
3. created an Oracle procedure
CREATE OR REPLACE PROCEDURE show_my_form ( p_image_id IN test_form.id%type) AS
l_mime test_form.mime_type%type;
l_length NUMBER;
l_file_name VARCHAR2 (2000);
lob_loc test_form.IMAGE%type;
BEGIN
SELECT mime_type, IMAGE
, DBMS_LOB.getlength (IMAGE)
INTO l_mime, lob_loc, l_length
FROM test_form
WHERE id = p_image_id;
owa_util.mime_header(l_mime, false);
htp.p ('Content-length: ' || l_length);
owa_util.http_header_close;
wpg_docload.download_file (lob_loc);
END show_my_form ;
4. In Apex 4.0
step1. Created an interactive report on a new APEX page
step2. Specified the following in the Region Source
select id, mime_type, '<img src="#OWNER#.show_my_form ?p_image_id=#ID#" />' photo
from TEST_FORM
The column result shows as <img src="CCS.show_my_form?p_image_id=#ID#" />
I am unable to display the column image as a link to a proper image photo.
Could you please advise me if I missed anything ?
Thanks a lot.
Regards
Susanna
Edited by: user10318332 on 13/12/2010 15:51
Edited by: user10318332 on 13/12/2010 20:10

Maybe the space you have before the ? is causing issues. there shouldn't be any space.
Your procedure looks to be much the same of one that I have.
Have you granted execute on your procedure?
Also, what version DB are you running? This could be another issue: http://daust.blogspot.com/2006/04/xe-calling-stored-procedures.html
But anyway, you don't need to create your own procedure these days. You could do the following:
in your query, have a column: dbms_lob.getlength(blob) photo ; save, then in column attributes for that column, apply a format mask. There is usually a link below the text box for the format mask - BLOB Download Format Mask, which will help you build the format mask. But it is documented here: http://download.oracle.com/docs/cd/E17556_01/doc/user.40/e15517/advnc.htm#BCGGJHEF
Ta,
Trent

CRXIR2 image from blob field and some fonts not displaying in PDF export

I used CRXIR2 developer edition to create a report linked to a SQL 2000 database table. There is a blob field containing a JPG image that is different for each record in the table. I am using VB.NET code with ASP.NET 2.0 to programmatically change the temp file to a local folder for easy cleanup, open this crystal report with the 11.5.3700.0 version of the assemblies, set the datasource to a DataTable extracted from the DB, and then export to a PDF file.
The code for creating the PDF is:
        Dim TempRoot As String = MapPath(".") & "\temp\"
        Dim oldTmp As String = System.Environment.GetEnvironmentVariable("TMP")
        System.Environment.SetEnvironmentVariable("TMP", TempRoot)
        Dim objReport As New ReportDocument()
        objReport.Load(MapPath(".") & "\CReports\" & ReportName)
        For lnX As Integer = 0 To objReport.Database.Tables.Count - 1
                objReport.Database.Tables(lnX).SetDataSource(resultTable)
        Next
        Dim objDestinationOptions As New DiskFileDestinationOptions()
        Dim objExportOptions As New ExportOptions()
        Dim objFormatTypeOptions As New CrystalDecisions.Shared.PdfRtfWordFormatOptions()
        Dim pdfName As String = "test.pdf"
        objDestinationOptions.DiskFileName = MapPath(".") & "\temp\" & pdfName
        objExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat
        objExportOptions.ExportDestinationType = ExportDestinationType.DiskFile
        objExportOptions.ExportDestinationOptions = objDestinationOptions
        objReport.Export(objExportOptions)
        objReport.Dispose()
        System.Environment.SetEnvironmentVariable("TMP", oldTmp)
When I run the site locally in VS2008, everything works fine and a PDF contains the graph and all the fonts are correct.
However, when I run the exact same site from a web server running IIS6, the PDF generated does not have the image, and some of the fonts are substituted (all of the necessary fonts are installed on the IIS server).
Please help!

Hi Don,
I am able to see the image and export from the CR Designer on my machine running XP. However, I installed the designer on our IIS server running Server 2003, and the image does not show in the designer preview on that machine.
I found another forum thread that you are involved in (1902383) that seems to be dealing with this exact issue, and it looks like there may not be a resolution.
I am going to try a different route - instead of pulling in the SQL Image field directly, I am going to write it out to a temporary file and pull it in by altering the graphic location of the picture object in the report.
I'll let you know how that works.
Pete

Need some help extracting images from blobs...

hi,
I want to upload a image to a oracle blob and then download it and display it into a browser using jsp. I am new to java as will as oracle and doing a project for the first time. I have searched the internet and found out some links:
http://fdegrelle.over-blog.com/article-992927-6.html
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:232814159006
http://forums.devx.com/archive/index.php/t-142347.html
I feel the solutions given are very vogue and also tried the solutions posted in java forums itself. I would like to have simple example, step by step explanation for uploading an image into a oracle blob,download the image and display it in a browser using a jsp so that i can understand the concepts.
Thank you SUN and JAVA PROGRAMMERS.

thanks yogee,
The creators of these examples have assumed that the developers are advanced users. I am not an advanced user. I am not even a intermediate user.
1.....................................I understood this(Create Table)
create table demo
( id        int primary key,
theBlob    blob
)/2...................................I understood this too(I suppose we are mapping the folder path)
create or replace directory my_files as '/export/home/tkyte/public_html';3..................................I understood this too(upload the file into the blob)
declare
    l_blob    blob;
    l_bfile    bfile;
begin
    insert into demo values ( 1, empty_blob() )
    returning theBlob into l_blob;
    l_bfile := bfilename( 'MY_FILES', 'aria.gif' );
    dbms_lob.fileopen( l_bfile );
    dbms_lob.loadfromfile( l_blob, l_bfile,
                               dbms_lob.getlength( l_bfile ) );
    dbms_lob.fileclose( l_bfile );
end;
/4..................................we are creating a package here. I got it.
create or replace package image_get
as
    procedure gif( p_id in demo.id%type );
end;
/5...................................we are suppose to use this to extract the file from the blob. But where does this get stored?
create or replace package body image_get
as
procedure gif( p_id in demo.id%type )
is
    l_lob    blob;
    l_amt    number default 30;
    l_off   number default 1;
    l_raw   raw(4096);
begin
    select theBlob into l_lob
        from demo
         where id = p_id;
        -- make sure to change this for your type!
    owa_util.mime_header( 'image/gif' );
        begin
           loop
              dbms_lob.read( l_lob, l_amt, l_off, l_raw );
              -- it is vital to use htp.PRN to avoid
              -- spurious line feeds getting added to your
              -- document
              htp.prn( utl_raw.cast_to_varchar2( l_raw ) );
              l_off := l_off+l_amt;
              l_amt := 4096;
           end loop;
        exception
           when no_data_found then
              NULL;
        end;
end;
end;
/6...............................Execute the procedure!
exec image_get
7..................................What after this step?
I do not know servlets. I only know JSP? If you can please write a simple servlet to access the data and display it on the browser
Sample servlet code is in the link as a last user comment. I couldn't understand head or tail.
http://forums.devx.com/archive/index.php/t-142347.html
I appreciate your help.
Message was edited by:
ted_anderson

Display image from blob

Hello.
Does anybody know, how to display image stored in BLOB column in some table?
Thanx.

Hi Denes.
It looks like a good work but it doesnt work in my app. Everything is ok but image doesnt display.
html: <IMG src="APEX_WS.my_image_display" />
procedure:
CREATE OR REPLACE PROCEDURE APEX_WS.my_image_display
AS
l_length NUMBER;
l_file_name VARCHAR2 (2000);
lob_loc BLOB;
BEGIN
SELECT iblob, FNAME, DBMS_LOB.getlength (iblob)
INTO lob_loc, l_file_name, l_length
FROM MY_IMAGES_FROM_DISK
where date_time = (select max(date_time) from MY_IMAGES_FROM_DISK);
OWA_UTIL.mime_header ('image/'||regexp_replace(l_file_name,'(.*)\.(.*)','\2'), FALSE);
HTP.p ('Content-length: ' || l_length);
OWA_UTIL.http_header_close;
WPG_DOCLOAD.download_file (lob_loc);
END my_image_display;
table:
DNAME, FNAME, IBLOB, DATE_TIME
UTL_FILE,conditions.gif, BLOB, 21.8.2009
Where is the problem?:) Thanx.

Displaying Image from Blob as part of JSP

Hi All,
In our application we need to display a image as part of a JSP .The image comes as Blob from DB .we are able to save that image local file system but the image is not getting rendered on JSP.We tried converting the Blob to byte[] also.
we are using the following tag
<h:graphicImage value="#{beanName.property}" />
that bean property is a byte array.

Hi,
We converted the Blob to byte array but even that does not seem to be working can anyone give the exact h:graphicImage tag that woorked without any servlet code to set it in response.
Its really urgent.
Thanks in advance

Displaying a image from blob

Hi all,
          i am storing a image/word doc in a clob in database. How to display it to
          the user(in the browser) programmatically?
          in other words
          When user click on some link, servlet/jsp should able to get that
          image/word doc from database(from clob) and should be displayed it to him.
          Any ideas??
          thanks in advance,
          -ramu


Hi Purdy:
          I got documentation from oracle site And its really cool feature. It exactly
          suites our requirement.
          Thanks a lot Purdy,
          -ramu
          "Ramu" <[email protected]> wrote in message
          news:[email protected]...
          > Hi Purdy:
          >
          > Where can i find documentation on "references an OS file". Could you throw
          > some more light on this?
          >
          > thanks a lot for your help.
          >
          > -ramu
          >
          >
          > "Cameron Purdy" <[email protected]> wrote in message
          > news:[email protected]...
          > > In a database, you should use a blob (or longvarbinary) type.
          > >
          > > Oracle also has a type which references an OS file, but then you are not
          > > storing the document in the database. I don't know if that matters to
          > you.
          > >
          > > Peace,
          > >
          > > --
          > > Cameron Purdy
          > > Tangosol, Inc.
          > > http://www.tangosol.com
          > > +1.617.623.5782
          > > WebLogic Consulting Available
          > >
          > >
          > > "Ramu" <[email protected]> wrote in message
          > > news:[email protected]...
          > > > HI,
          > > > > CLOB is for Unicode. BLOB is for binary. A Word document, as far
          as
          > > you
          > > > > are concerned, is binary. (Unless you know something that I
          don't --
          > > are
          > > > > Word documents persisted as Unicode text? ;-)
          > > >
          > > > I mean to say BLOB only. What i mean to ask is, Is there any better
          > > > way(apart from storing in BLOB) to store word documents which are
          > > updatable
          > > > by the user?
          > > >
          > > > thanks..
          > > > -ramu
          > > >
          > > >
          > > >
          > > > >
          > > > > Peace,
          > > > >
          > > > > --
          > > > > Cameron Purdy
          > > > > Tangosol, Inc.
          > > > > http://www.tangosol.com
          > > > > +1.617.623.5782
          > > > > WebLogic Consulting Available
          > > > >
          > > > >
          > > > > "Ramu" <[email protected]> wrote in message
          > > > > news:[email protected]...
          > > > > > Thanks Purdy,
          > > > > > I got mime type for MS word in registry and It worked for me.
          Thanks
          > a
          > > > > lot.
          > > > > >
          > > > > > > 2. Don't use CLOB, use BLOB (or Oracle "long raw" or Sybase
          > "image"
          > > > or
          > > > > > ANSI
          > > > > > > "long varbinary")
          > > > > > So what is the best way to display a word document to user? In my
          > > case
          > > > > each
          > > > > > user will have his own document and at any time he should be able
          to
          > > > > > update/modify that. So i thought of storing it into CLOB
          database
          > > > > (instaed
          > > > > > of storing as OS binary files). For this kind of scenario which
          is
          > > the
          > > > > best
          > > > > > way.
          > > > > >
          > > > > > Thanks once agin Purdy.
          > > > > >
          > > > > > -ramu
          > > > > >
          > > > > >
          > > > > > "Cameron Purdy" <[email protected]> wrote in message
          > > > > > news:[email protected]...
          > > > > > > 1. Check the registry for the mime type
          > > > > > > 2. Don't use CLOB, use BLOB (or Oracle "long raw" or Sybase
          > "image"
          > > > or
          > > > > > ANSI
          > > > > > > "long varbinary")
          > > > > > >
          > > > > > > Peace,
          > > > > > >
          > > > > > > --
          > > > > > > Cameron Purdy
          > > > > > > Tangosol, Inc.
          > > > > > > http://www.tangosol.com
          > > > > > > +1.617.623.5782
          > > > > > > WebLogic Consulting Available
          > > > > > >
          > > > > > >
          > > > > > > "Ramu" <[email protected]> wrote in message
          > > > > > > news:[email protected]...
          > > > > > > > Hi all,
          > > > > > > >
          > > > > > > > i am storing a image/word doc in a clob in database. How to
          > > display
          > > > it
          > > > > > to
          > > > > > > > the user(in the browser) programmatically?
          > > > > > > >
          > > > > > > > in other words
          > > > > > > > When user click on some link, servlet/jsp should able to get
          > that
          > > > > > > > image/word doc from database(from clob) and should be
          displayed
          > it
          > > > to
          > > > > > him.
          > > > > > > > Any ideas??
          > > > > > > >
          > > > > > > > thanks in advance,
          > > > > > > > -ramu
          > > > > > > >
          > > > > > > >
          > > > > > > >
          > > > > > >
          > > > > > >
          > > > > >
          > > > > >
          > > > >
          > > > >
          > > >
          > > >
          > >
          > >
          >
          >

Retreving Image from Blob in forms 6

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