Displaying BLOB image in an item

I have a table with a BLOB column holding an image.
I can set up a report region with a query on the column like this (the whole sql query is omitted for simplicity, I am just showing relevant column):
dbms_lob.getlength(a.product_logo)
and then put a mask on the report column:
IMAGE:PROJECT:PRODUCT_LOGO:PROJECT_ID::::::inline:Download
and it works. The report region, when ithe page runs, displays the image.
My problem is this...
I am trying to set up a page where I already have an html region serving other purposes. I want to set up an item under that region that would display my image. I create an item of "Display As Text" type.
I then enter my magic query dbms_lob.getlength(a.product_logo) into the item's "Source value or expression" field, while I set the "Source type" to "SQL Query". In the format mask for the item, I enter the same mask I showed above - "IMAGE:PROJECT:PRODUCT_LOGO:PROJECT_ID::::::inline:Download".
I run the page and it doesn't work. The item comes back with a number. I am guessing it's the actual getlength value. What else am I missing? Or is it even possible to display an image BLOB through an item and not a report column?
Thanks
Boris

Hi,
Install demonstrative application and check page 6
To install demonstrative app go
Home>Application Builder>Create
and select Demonstration Application
Br,Jari

Similar Messages

Problem with displaying BLOB images on JSP page using a servlet

hi. I have a big problem with displaying BLOB images using JSP. I have a servlet that connects to the oracle database, gets a BLOB image , reads it, and then displays it using a BinaryStream. The problem is , this works only when i directly call that servlet, that is http://localhost:8080/ImageServlet. It doesn't work when i try to use that servlet to display my image on my JSP page (my JSP page displays only a broken-image icon ) I tried several coding approaches with my servlet (used both Blob and BLOB objects), and they work just fine as long as i display images explicitly using only the servlet.
Here's what i use : ORACLE 10g XE , Eclipse 3.1.2, Tomcat 5.5.16 , JDK 1.5
here is one of my image servlet's working versions (the essential part of it) :
 BLOB blob=null;
 rset=st.executeQuery("SELECT * FROM IMAGES WHERE ID=1");
 while (rset.next())
 blob=((OracleResultSet)rset).getBLOB(2);
 response.reset();
 response.setContentType("image/jpeg");
 response.addHeader("Content-Disposition","filename=42.jpeg");
 ServletOutputStream ostr=response.getOutputStream();
 InputStream istr=blob.getBinaryStream(1L);
 int size=blob.getBufferSize();
 int len=-1;
 byte[] buff = new byte[size];
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 response.flushBuffer();
 ostr.close(); and my JSP page code :
<img src="/ImageServlet" border="0" > If you could just tell me what i'm doing wrong here , or if you could show me your own solutions to that problem , i would be very greatful ,cos i'm realy stuck here , and i'm rather pressed for time too. Hope someone can help.

I turns out that it wasn't that big of a problem after all. All i had to do was to take the above code and place it into another JSP page instead of into a servlet like i did before. Then i just used that page as a source for my IMG tag in my first JSP. It works perfectly well. Why this doesn't work for servlets i still don't know, but it's not a problem form me anymore . Ofcourse if someone knows the answer , go ahead and write. I would still appriceatte it.
here's the magic tag : <img src="ImageJSP.jsp" border="0" > enjoy : )

Display BLOB (image) column in (interactive) report

Hi,
I have a field called "picture" in my table "details" which is of type BLOB. i also have a field for "MIMETYPE" and "filename"
i additionally have a "name" and "description" columns which i need to display along with the picture as columns in a report (preferably interactive).
i have also modified the BLOB display format as per
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/apex/r31/apex31nf/apex31blob.htm
what i am missing is the correct query. if possible, i would like to control the size of the picture rendered within the report like say 40*50.
I have also referred to the thread
APEX 3.1 Display BLOB Image
But i don't know how to place the
dbms_lob.getlength("BLOB_CONTENT") as "BLOB_CONTENT"
in my query.
The above also makes the report column as of type "number". is this expected?
Any help would be much appreciated.
Regards,
Ramakrishnan

You haven't actually said what the problem is?
>
I have a field called "picture" in my table "details" which is of type BLOB. i also have a field for "MIMETYPE" and "filename"
i additionally have a "name" and "description" columns which i need to display along with the picture as columns in a report (preferably interactive).
i have also modified the BLOB display format as per
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/apex/r31/apex31nf/apex31blob.htm
what i am missing is the correct query.
I have also referred to the thread
APEX 3.1 Display BLOB Image
But i don't know how to place the
dbms_lob.getlength("BLOB_CONTENT") as "BLOB_CONTENT"
>
Something like:
select
 name
 , description
 , dbms_lob.getlength(picture) picture
from
 details
if possible, i would like to control the size of the picture rendered within the report like say 40*50.For images close to this size it's easy to do this for declarative BLOB images in interactive reports using CSS. Add a style sheet with:
.apexir_WORKSHEET_DATA td[headers="PICTURE"] img {
display: block;
width: 40px;
border: 1px solid #999;
padding: 4px;
background: #f6f6f6;
}where the <tt>PICTURE</tt> value in the attribute selector is the table header ID of the image column. Setting only one dimension (in this case the width) scales the image with the correct aspect ratio. (The border, padding and background properties are just eye candy...)
However, scaling large images in the browser this way is a huge waste of bandwidth and produces poorer quality images than creating proper scaled down versions using image tools. For improved performance and image quality, and where you require image-specific scaling you can use the database ORDImage object to produce thumbnail and preview versions automatically, as described in this blog post.

I want to display BLOB image in JSP Using html tags IMG src=

GoodAfternoon Sir/Madom
I Have got the image from oracle database but want to display BLOB image using <IMG src="" > Html tags in JSP page . If it is possible than please give some ideas or
Send me sample codes for display image.
This code is ok and working no problem here Please send me code How to display using html tag from oracle in JSP page.
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page import="javax.swing.ImageIcon;" %>
 <%
 out.print("hiiiiiii") ;
 // declare a connection by using Connection interface
 Connection connection = null;
 /* Create string of connection url within specified format with machine
 name, port number and database name. Here machine name id localhost
 and database name is student. */
 String connectionURL = "jdbc:oracle:thin:@localhost:1521:orcl";
 /*declare a resultSet that works as a table resulted by execute a specified
 sql query. */
 ResultSet rs = null;
 // Declare statement.
 PreparedStatement psmnt = null;
 // declare InputStream object to store binary stream of given image.
 InputStream sImage;
 try {
 // Load JDBC driver "com.mysql.jdbc.Driver"
 Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
 /* Create a connection by using getConnection() method that takes
 parameters of string type connection url, user name and password to
 connect to database. */
 connection = DriverManager.getConnection(connectionURL, "scott", "root");
 /* prepareStatement() is used for create statement object that is
 used for sending sql statements to the specified database. */
 psmnt = connection.prepareStatement("SELECT image FROM img WHERE id = ?");
 psmnt.setString(1, "10");
 rs = psmnt.executeQuery();
 if(rs.next()) {
 byte[] bytearray = new byte[1048576];
 int size=0;
 sImage = rs.getBinaryStream(1);
 //response.reset();
 response.setContentType("image/jpeg");
 while((size=sImage.read(bytearray))!= -1 ){
 response.getOutputStream().write(bytearray,0,size);
 catch(Exception ex){
 out.println("error :"+ex);
 finally {
 // close all the connections.
 rs.close();
 psmnt.close();
 connection.close();
 %>
 Thanks

I have done exactly that in one of my applications.
I have extracted the image from the database as a byte array, and displayed it using a servlet.
Here is the method in the servlet which does the displaying:
(since I'm writing one byte at a time, it's probably not terribly efficient but it works)
 private void sendImage(byte[] bytes, HttpServletRequest request, HttpServletResponse response) throws IOException {
 ServletOutputStream sout = response.getOutputStream();
 for(int n = 0; n < bytes.length; n++) {
 sout.write(bytes[n]);
 sout.flush();
 sout.close();
 }Then in my JSP, I use this:
<img src="/path-to-servlet/image.jpg"/>
The name of the image to display is in the URL as well as the path to the servlet. The servlet will therefore need to extract the image name from the url and call the database.

Displaying BLOB image by using ADF Faces

Hi all,
I digged the forum but couldn't find any satisfied answer about displaying BLOB images by using ADF Faces.
I have insterted POJO object to Oracle database but couldn't find any way to display blob (in java byte [] ) data in POJO.
I have read the POJO object from database which contains two field; one of them is id field and other is BLOB data which holds GIF or JPG image and I want to display this image another page which contains also other fields / records ...
thanks for your answers
regards...
--baris

This thread at Sun : http://forum.java.sun.com/thread.jspa?threadID=513804&messageID=2445090
talks about two options for creating a graphicImage jsf tag. (img tag)
1. Make the img tag url refer to a servlet (instead of a static image file)
2. Embed the image into the tag as inline base64 encoded data.
2a. Use an <Object> tag with inline data.
1. Looks a bit complex for a simple problem.
2 and 2a don't work with some browsers.
- And I've not yet figured out how to hook into the ADF Faces table-rendering logic to get it to add my image column. My table binds to a collection DataControl, [which in turn retrieves from a findAllItems call on a session facade, which uses my domain model, and wraps up access to a TopLink pesistence layer]. The framework just ignores my byte[] attribute when creating the jsf table from the DataControl. All string, int etc. attributes get represented correctly in the jsf table output.

Display Blob image in oracle forms

i have an application in which i have to store all the employee's photos.
i created the Photo column in database with datatype Blob.
I created the form to store image that successfully stores image in database.
bUt now what should i Do to display that image on Image Item when i execute_query.
I m using Oracle forms 6i version & oracle 10 g database

my image item contains all default properties set that are done when i create a database block PHOTO.
i didnt set any property.
Edited by: rupearlkaushal on Jun 8, 2012 6:33 AM

How do I display blob (image) in a Portal Report

I am using 9ias 10222 and portal 30983 and I have a table that stores an image as a blob and have a varchar field to store the mime type. I have created a form to upload the image and can then query the form to display the image.
How do I dislay the image in a Portal Report/Dynamic Page Component. I have followed note 68016.1 but the retrieve_img_data procedure does not work it gives a wwv-11230 error.
Any ideas? Any help would be appreciated.
Thanks
Belinda

Hi,
Can you display what code you used for this? I followed note 172045.1 and everything compiles properly but when I run the report, I just get a box with a red X in it, like it is not finding the picture. I ran the procedure that downloads the image and it works fine from there. Thanks.

Display BLOB Image in a JSP page.

Hi, Is there any easy way to display a Image in the browser using a JSP and an Oracle BLOB. I would like any code examples that anyone can provide me. I would like as many ways to do this as possible.
Thanks Brian

You can do it in 2 ways:
1. Get the BLOB from the DB and then write it into the local harddisk where the Web Server is located and then give the path in the <IMG SRC> Tag.
2. In the JSP, when you specify a IMG Tag
<IMG SRC='FileDisplayServlet?hdImgName=new.gif'>
This SRC is pointing to a Servlet. The Servlet will read the Query String and then go hit the DB, get the BLOB Content and then convert into a byte array. Now the servlet will change its content type to image or gif. Then it will write the content in the out stream.
Hope this helps.
Thanks and regards,
Pazhanikanthan. P

Displaying blob image using adf

Hi ,
We are using adf in our application. We have to disaply blob image from oracle data base on the adf jspx page.This jspx page consists of 2 jsff files.
I have created an httpservlet and called on the source parameter of image this httpservlet with binding similar as below:
source="/httpServletName?id=#{bindings}}"
I am able to display the image.
But my concern is that I am using iterator for displaying images as there can be multiple records in the table but for every recoed I am getting same image. Please suggest how can I display multiple images coming with respect to various records of data base.
thanks & Regards

Hi,
After attempting the solution given above also I am getting the same issue.
On the jspx page I want to show Imageid, imagedescription and photo .
I have 4 records coming from database on the jspx page. I have found that all the data (imageid, description) is first displayed on the jspx and then control gets transferred on the ImageServlet only once and in request.getParameterMap() I get only one "ID" value i.e. the ID value of last record (4th record) coming from data base and hence in all the 4 records on jspx I am getting the same image (i.e. the image in the 4th record of db). Please help me to proceed on this issue.
On jspx, I have given image source value as :
<af:image shortDesc="image"
id="image1"
source="/imageservlet?id=#{bindings.Id.inputValue}}"/>
Thanks

HELP!!!!Display blob image using JSP

Hi,
I am trying to blob image using JSP but it did not display successfully.
Can someone help, please?
below are the codes snippet:
<td>
<img src="display_image.jsp?ID=<%=request.getParameter("ID") %>" width="115" border="0">
</td>
byte[] image_blob = details.getImageByteArray();
response.setContentType("image/jpeg");
//response.setContentType("image/gif");
//BEGINNING OF SECTION TO DISPLAY IMAGE
/*OutputStream fos = null;
fos = response.getOutputStream();
fos.write(image_blob, 0, image_blob.length);
fos.flush();
fos.close();*/
java.io.FileOutputStream fos1 = new java.io.FileOutputStream("C:\\"+id+".jpg");
fos1.write(image_blob);
fos1.close();
OutputStream o = response.getOutputStream();
System.out.println("o");
o.write(image_blob);
System.out.println(image_blob);
System.out.println("write image");

Use Java Image or BufferedImage instead of obscure byte array for image data.
Here's an example code for a JSP document:
<%
String wid = request.getParameter("percent");
String cost = request.getParameter("suchi");
response.reset(); //IMPORTANT !
response.setContentType("image/jpeg");
// for testing purpose
if (wid == null) wid = "58";
if (cost == null) cost = "3400";
float dleng = Float.parseFloat(wid) * 2.6f;
RenderedImage rimg = drawGraph(dleng);
OutputStream os = response.getOutputStream();
try{
ImageIO.write(rimg, "jpg", os);
catch(IOException e){
os.flush();
%>
<%!
public RenderedImage drawGraph(float barLength){
final int w = 800;
final int h = 18;
final int x = 0;
final int y = 0;
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = img.createGraphics();
Color c = new Color(Integer.parseInt("FF9999", 16));
g2.setColor(Color.yellow);
g2.fillRect(x, y, w, h);
g2.setColor(c);
g2.fillRect(x, y, (int)barLength, h);
g2.dispose();
return img;
%>

Problem regarding insert and Display BLOB Image in Tabular form

I am trying to display and insert image in manual tabular form In Oracle APEX. but the image i uploaded was not inserted in wwv_flow_files table and in update button process i got "no data Found" Error...pls someone help me.... some part of code is bellow... SQL CODE IN REPORT REGION OF TABULAR FORM :- {
SELECT '#ROWNUM#' "SNO",
+' <img height="30" width="50" src="#WORKSPACE_IMAGES#'||F.FILE_NAME||'" alt="'||S.stud_fname||'" title="'||S.stud_fname||'" border="1"/>'AS "IMAGES", --- for display image from my table which is loaded through wwv_flow_files+
APEX_ITEM.CHECKBOX(01,s.stud_id) "DELETE",https:
s.stud_id|| apex_item.hidden(02,s.stud_id) "STUD ID",
+.......+
+.......+
union all -- for inserting row
SELECT '#ROWNUM#' "SNO",
+'<input type="file" name="F17" size="5">'AS "IMAGES", -- for display image+
APEX_ITEM.CHECKBOX(01,NULL) "DELETE",
null|| apex_item.hidden(02,null) "STUD ID", }
When i click on UPDATE BUTTON then following PROCESS CODE IS run :
FOR i IN 1..APEX_APPLICATION.G_F02.COUNT LOOP
IF APEX_APPLICATION.G_F02(i)IS NOT NULL THEN
UPDATE STUDENT SET stud_fname=APEX_APPLICATION.G_F04(i),
stud_addr =APEX_APPLICATION.G_F05(i), ......
ELSE
insert into FILE_ATMNT(ATMNT_KEY, ATMNT_NAME, FILE_NAME, MIME_TYPE, ATMNT_SIZE, CNTNT_TYPE, ATMNT_CNTNT, AUDIT_CRT_DATE ) SELECT id, name, filename, mime_type, doc_size,content_type, blob_content, SYSDATE FROM wwv_flow_files WHERE name = APEX_APPLICATION.G_F17(i);
SELECT id into upload_ref from wwv_flow_files where name =APEX_APPLICATION.G_F17(i);
........ ( code for student insert Record )
FILE_ATMNT is my attachment table in my workspace which updated through wwv_flow_files. My problem is that when i was click on update button image is not loaded into "wwv_flow_files" table so i didnt get image name bcz of $ name =APEX_APPLICATION.G_F17(i);$ this. so its show me no data found error.... Pls help me

Mahesh wrote:
Hi...i am mahesh...Welcome to the forum: please read the FAQ and forum sticky threads (if you haven't done so already).
You'll get a faster, more effective response to your questions by including as much relevant information as possible upfront. This should include:
<li>Full APEX version
<li>Full DB version and edition
<li>Web server architecture (EPG, OHS or APEX listener)
<li>Browser(s) and version(s) used
<li>Theme
<li>Template(s)
<li>Region/item type(s)
The best way to get help is to reproduce and share the problem on apex.oracle.com.
All code should be posted wrapped in tags<tt>\...\</tt> tags to preserve formatting and prevent it being interpreted by the forum software.
I am trying to display and insert image in manual tabular form In Oracle APEX. but the image i uploaded was not inserted in wwv_flow_files table and in update button process i got "no data Found" Error...pls someone help me.... some part of code is bellow... CODE IN REPORT REGION OF TABULAR FORM :-
SELECT '#ROWNUM#' "SNO",
'<img height="30" width="50" src="#WORKSPACE_IMAGES#'||F.FILE_NAME||'" alt="'||S.stud_fname||'" title="'||S.stud_fname||'" border="1"/>'AS "IMAGES", --- for display image from my table which is loaded through wwv_flow_files
APEX_ITEM.CHECKBOX(01,s.stud_id) "DELETE",https://forums.oracle.com/forums/post!default.jspa?forumID=137#
s.stud_id|| apex_item.hidden(02,s.stud_id) "STUD ID",
....... (some code).
union all -- for inserting row
SELECT '#ROWNUM#' "SNO",
'<input type="file" name="F17" size="5">'AS "IMAGES", -- for display image
APEX_ITEM.CHECKBOX(01,NULL) "DELETE",
null|| apex_item.hidden(02,null) "STUD ID",
....... (some code )
When i click on UPDATE BUTTON then following PROCESS CODE IS run :
FOR i IN 1..APEX_APPLICATION.G_F02.COUNT LOOP
IF APEX_APPLICATION.G_F02(i)IS NOT NULL THEN
UPDATE STUDENT SET stud_fname=APEX_APPLICATION.G_F04(i),
stud_addr =APEX_APPLICATION.G_F05(i), ..... ( some field of table)..
ELSE
insert into FILE_ATMNT(ATMNT_KEY, ATMNT_NAME, FILE_NAME, MIME_TYPE, ATMNT_SIZE, CNTNT_TYPE, ATMNT_CNTNT, AUDIT_CRT_DATE ) SELECT id, name, filename, mime_type, doc_size,content_type, blob_content, SYSDATE FROM wwv_flow_files WHERE name = APEX_APPLICATION.G_F17(i);
SELECT id into upload_ref from wwv_flow_files where name =APEX_APPLICATION.G_F17(i);
........ ( code for insert command )
FILE_ATMNT is my attachment table in my workspace which updated through wwv_flow_files. My problem is that when i was click on update button image is not loaded into "wwv_flow_files" table so i didnt get image name bcz of $ name =APEX_APPLICATION.G_F17(i);$ this. so its show me no data found error.... Pls help me
Before considering anything else, why bother with all this extra complexity? Why not use the standard form and report pattern?

How to display BLOB image column with WEB application, JSF, ADF BC

I looking for a way to display the content from a blob column on a WEB application, JSF, ADF BC
The blob column contains a JPEG image.
About the application
The model contains a viewobject where the blob column attribute (photoimg) type is of type : BlobDomain
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Any advice ?

Search is your friend
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John

How to display BLOB images from the Oracle database within Crystal

Let's say a have the following table
IMAGES
========
DOC_ID NUMBER
DOC_NAME STRING
DOC_IMAGE BLOB
The BLOB field can have any type of document: PDF, email, WORD, EXcel, etc. I would like to present the DOC_ID and DOC_NAME and let the user click any of them. Once the user clicks the document stored in the database as BLOB, it is rendered using the default application associated to the extension. For example if the file name is ABC.XLS open MSExcel if the file is abc.pdf open Acrobat.
I am using Crystal2008 and evaluating Crystal 4.0
Does this requires programming?
Thanks!!!

Hi
Crystal is a reporting tool and you canu2019t execute any code except free hand SQL. When you pull any BLOB fields in crystal, it takes as a picture field and if that field contains image only it will display in your report.
If you have any information other than image, it will not display any info in the report.
If you want to insert Word , PDF and Excel then you will have to insert as ole object and can manage with location of the files.
Thanks,
Sastry

Displaying BLOB images from table in a report

I am trying to upload images to a table, display them in a report afterwards. I have succeeded in the first part, but not in the second. 
 
I can display images in a report if they are in located in wwv_flow_file_objects$ where they are automatically put after 'File browse... + Submit'. 
But, if I move (insert into table + delete from ..object$) I cant display it in a report correctly. I saw the HOWTO document (the code was from there), but for some reason, it doesn't work. 
 
What am I doing wrong? How should I correct the column link or the procedure? 
 
REPORT SQL: 
 
id, 
name, 
filename, 
img src="display?p_photo_id=' || nvl(id,0) || '" height="50" width="50"' 
--wwv_flow_file_objects$ display 
--img src="p?n=' || nvl(id,0) || '" height="50" width="50" ' img, 
BLOB_CONTENT, 
MIME_TYPE 
from images; 
PROCEDURE 'display': 
create or replace procedure display (p_photo_id in number) 
as 
l_mime varchar2(255); 
l_length number; 
l_file_name varchar2(2000); 
lob_loc BLOB; 
begin 
select mime_type, blob_content, name, dbms_lob.getlength(blob_content) 
into l_mime, lob_loc, l_file_name, l_length 
from images where id = p_photo_id; 
owa_util.mime_header(nvl(l_mime,'application/octet'), FALSE ); 
htp.p('Content-length: ' || l_length); 
htp.p('Content-Disposition: filename="' || l_file_name || '"'); 
owa_util.http_header_close; 
wpg_docload.download_file( Lob_loc ); 
end; 
 
Many thanks! 

Alayan - If you're using XE, that shoud be the first thing you tell us. There is a separate forum for that product.
But as long as you're here, a couple points: you reference the "display" procedure in the img tag without qualifying it with an owner. How is the Embeded PL/SQL Gateway supposed to know what "display" is (unless you created a public synonym)? Next, in XE you need to explicitly enable access to procedures that are invoked this way. See the XE forum for discussion about that technique and read the doc here: http://download-uk.oracle.com/docs/cd/B25329_01/doc/appdev.102/b25309/adm_wrkspc.htm#BEJCGJFJ.
Scott

Displaying BLOB (image) data in BI Publisher Report - E-Business Suite R12

Hi All,
As part of E-Business Suite R12.1.3 upgrade, I need to develop a PO printout report using MS Word BI Publisher Desktop Plugin. The report needs to include images (signatures) from the database based on requisition approvers.
How can I build a custom view and a template to use with an RTF report and include dynamic images in it? Is it possible?
Thanks,
Sinan

yes, it is possible
look at Inserting BLOBs into your report
steps:
- create data definition with query with blob (say image) in xmlp
- create empty template and load it into xmlp resp
- create concurrent
- run concurrent
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- use BI Publisher Desktop with xml data for construct template layout
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another way
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- mos: How to Insert Images and BLOBs Dynamically into Word Template or Document? [ID 443957.1]

Displaying BLOB image in an item

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