Storing Images using Datatype BLOB

Hi
I have never worked with storing and retreving images into the database using BLOB datatype? I would apprecite if anyone can guide me to a write up or instructions . I will be using Oracle Forms 6i to do so.

- Can you post the SELECT statement?
- Can you post the error message?
- Which version of the Oracle ODBC driver are you using?
Justin

Similar Messages

Storing images using C++

Hi All,
I need to store images in form of BLOB to Oracle 8i (8.1.6) database. The program that is accessing Oracle runs on Windows and is written in C++. Can anyone send me a sample code how to store images to the database.
TIA
Roumen :-)

Hi
I had a project with this task. I haven't source because it was not part of may job but we used Oracle Objects for OLE and it was very easy. There was examples in help files of OO4O.
It is easy to use OO4O from C++ if you write Windows application instead of direct OCI calls.
Regards
null

Storing Images In Oracle 9.2 Using Forms 6i

When my database was 8.1.7, storing Images in the database in BLOB field worked fine through Form 6i. But when the database was upgraded to 9.2 then the images are not loaded in the database through Forms 6i.
Kindly help
Thanks

Hi,
I wanted to do the same thing and faced the same problem. I'm working on Forms 6i and Oracle 9i as backend.
When an Image item is created on forms, it's datatype is set to Long Raw. You can see this by changing the type of the image item to text item. You'll see that the datatype is Long Raw. The idea of inserting the image would work perfectly if you set the datatype of the column to Long Raw in the backend.
For using BLOB... I searched alot but all in vain. No answer as to how to handle BLOB in Forms 6i.
Do let me know if you get a way out.

Blob Problem (storing Images)

AOA!
I am working as a developer in a companey. we made a database for HRMS. In this database there is a table EMPLOYEE with a column PICTURE of type BLOB. We were using oracle 8i initially but when we migrate to oracle 9i, we are facing a problem in image storing. The situation is, database showing ur previously stored images (those have stored in oracle 8i) but when we save a new image in that table or any other table it seams to be saved but cannot retrived. I mean when we issue a query
SELECT EMP_ID FROM EMPLOYEE WHERE PICTURE IS NOT NULL;
It shows the new inserted records too (thats shows us that picture has been inserted) but when we issue query from a forms6i application it didnt show any image. In case of report, when we try to query a record which newly inserted with image, it says some thing like REPORT IS UNABLE TO SHOW IMAGE FORMATE etc.
The situation is for all table and all schema which is indicating us may be it is some thing due to oracle 9i headen technique or due to miss managment by us. we dont have DBA in our companey.
Please help us in this regard. We will be thankfull to you.
Usman Rana
Dont reply to above mantioned email my actual email account is [email protected]

I think that both your SQL is wrong and your intended use is wrong. According to the SQL reference, the following seems to be a simplified definition that seems to match what you're trying to do. UPDATE <table> SET <column> = <expr>. So PROPERTIES should be a <table> of some kind and X should be a <column> of that table. This changes your PreparedStatement to *"UPDATE PROPERTIES SET X = ? WHERE NAME = ?"* Then you can do ps.setBlob(1, b) and ps.setString(2, ...). Because your statement is DML you must do ps.executeUpdate(). So your code might look something like this.
Blob b = ...;
String x = ...;
ps = c.prepareStatement("UPDATE PROPERTIES SET X = ? WHERE NAME = ?");
ps.setBlob(1, b);
ps.setString(2, x);
int i = ps.executeUpdate();
The executeUpdate() returns the row count (i.e. number of rows) of your DML statement. Try that and see if it helps.

Which is better datatype for storing Images in 11gr2 Database ?

Can anyone tell me which datatype should be maintained for storing images in database in terms of
1. Space
2. Speed.
And, Is there another way for storing images instead of database ?
Thanks/Regards in advacne.

982164 wrote:
Which one have better speed, database system or file system ?Database is better all around. It is not just a question of speed. It is a question of storage, security, flexibility, scalability, robustness and so on.
If you use ASM and raw devices from a storage array or SAN, how do you get o/s files onto that? (requires a file system on the SAN/array LUNs)
If it is inside the database, database security, concurrency and consistency apply to the image. Outside the database? How do you control who has access? Prevent someone with slippery fingers from accidentally deleting/renaming/moving images files? How do you backup up the image data with the image attribute data in the database?
Having all this inside the database, part of the database, managed by the database, provides you with more flexibility, robustness, and security. After all a RDBMS is a data management system - it is designed for managing data. And that includes managing binary data.
As for speed. Reading a 24MB image is reading 24MB worth of data. Whether that data is read by process A from disk1, or process B from disk2 - the amount of data is the same. So if you want faster I/O, then use faster disks. If disk1 is faster, process A will perform better reading the image than process B. If disk2 is faster, the roles are reversed.
So I/O speed is not a direct function of process A or process B. It is a direct function of the I/O storage and fabric layer. Yes, a process's method of I/O can make a difference (e.g. using block reads not aligned with the physical blocks on disk). But this is more a configuration issue than process doing badly designed I/O calls.
So the speed question is a bit loaded as it has more to do with the architecture and design of the I/O system - and less to do with the process doing that I/O. You can have a highly optimised I/O process doing poorly using an old and slow I/O layer, and poorly written I/O process doing pretty well on a SSD I/O layer.
Databases like Oracle is designed for dealing with data - and thus effectively dealing with I/O. Lots of it. For lots of data. So I/O process design is not a consideration. The database processes will use the I/O layer as optimally as possible and as configured.

I have just bought a hdmi tv and would like to view very high quality images, using apple tv, stored on my external hard drive. I also have blue ray movies stored on my external hd. will i be able to stream these to my tv and view them in 1080p?

I have just bought a hdmi tv and would like to view very high quality images, using apple tv, stored on my external hard drive. I also have blue ray movies stored on my external hd. will i be able to stream these to my tv and view them in 1080p?

sorry, why isn't correct?
i try convert video with quick time to apple tv, import in itunes( that's ok) but is impossible to synchronize my apple tv ( unsupported file).
where I wrong?
please could you explain me the correct procedure?
i have some video ( holiday movie an photo movie in mpeg2 full HD) to convert for apple tv, and from 2 years some video editing with imovie.
normally I prepare my video with Imovie, create a file .mov full hd (like master) and with roxio convert file for apple TV.
apple world is new for me, after 25 years with microsoft!
thank so much
mauro

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;
%>

How to read the stored images

hi
i have images in my table img,
i want to know how toretreive that stored image

i have images in my table img
> i want to know how toretreive that stored image
How to retrieve it depends on how it is stored? What is the data type? Is it perhaps a blob (large object in binary format)? If so check out the package dbms_lob and read Application Developer's Guide - Large Objects. If not connect to your database using sql plus to publish the data type for the image column from the command "describe img".

Print Images using FOP

Can we print images using FOP by taking it from the database ? Iam using the FOP and outputing to a PDF. However, I have an image that I would like to print. The image is stored in the database as a BLOB. How can I print this image in the PDF document ?
(b) Alternatively, if this is not possible, do we need to move the image to a physical file system and use <img src> and print ? If so, how can we move the image to the file system ? I found only UTL_FILE can do this ? But Iam not sure if it can work properly for Image file. When I tested this using utl_file, my image file got corrupted.

Hi there, from what type of device are you trying to print the images from e.g. a smartphone/tablet or a PC/laptop?
Best
If my reply helped you, feel free to click on the Kudos button (hover over the "thumbs up").
If my reply solved your problem please click on the Accepted Solution button so other Forum users may benefit from viewing the post.
I am an HP employee.

Storing Image

Hi friends,
Can anyone of you please tell me how can I store a Image file
into a table as field.
Thanks
Indra

You would need to use the BLOB field in the table to store the
image. As far as storing is concerned, it depends upon what front
end application you are using but most of them allow saving of
blob data. You might have to insert the row first and them use
updateblob feature available in the front end application.

Storing images inside the database

hi,
we are running oracle 9ir2 on Solaris and would like to know how to go about achiving the following:
would like to be able to read/write/create/delete bitmap image files in a file share on the same server as the database which would be stored in a table within our schema in the form <filename varchar2>,<image-file-contents blob>
Is this possible?! If so - any pointers in the right direction would be great!
thanks,
p

To some extent, this was covered a few days ago in the PL/SQL forum. There are some examples of uploading image files to blobs in the database here.
upload any file (like .DOC,.JDG) to oracle database?
If you want the images to be visible on a file system, you may want to use BFILE's, rather than BLOB's. BFILE's are essentially pointers in the database to file system objects, while BLOB's are stored completely in the database. The major disadvantages of BFILE's are that
- the file may be deleted or moved, leaving the Oracle BFILE pointing at nothing
- the file won't be backed up with the rest of the database
Going up a level of sophistication, you could store the images using interMedia. This gives you significantly more options for manipulating the images within the database.
Finally, you can use Oracle iFS (or whatever it's been renamed to today) to provide a file system interface to an Oracle database. This is the most robust of the options, but is also the most work to configure.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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;
f_lob := bfilename( 'MY_FILES', 'aria.gif' );
dbms_lob.fileopen(f_lob, dbms_lob.file_readonly);
dbms_lob.loadfromfile( b_lob, f_lob, dbms_lob.getlength(f_lob) );
dbms_lob.fileclose(f_lob);
commit;
end;
Step 4.
Create a procedure that is called via Oracle Application Server to display the
image.
create or replace procedure get_img as
vblob blob;
buffer raw(32000);
buffer_size integer := 32000;
offset integer := 1;
length number;
begin
owa_util.mime_header('image/gif');
select blob_col into vblob from blobs where id = 'MyGif';
length := dbms_lob.getlength(vblob);
while offset < length loop
dbms_lob.read(vblob, buffer_size, offset, buffer);
htp.prn(utl_raw.cast_to_varchar2(buffer));
offset := offset + buffer_size;
end loop;
exception
when others then
htp.p(sqlerrm);
end;
Step 5.
Use the PL/SQL cartridge to call the get_img procedure
OR
Create that procedure as a function and invoke it within your PL/SQL code to
place the images appropriately on your HTML page via the PL/SQL toolkit.
from a html form
1. Create an HTML form where the image field will be <input type="file">. You also
need the file MIME type .
2. Create a procedure receiving the form parameters. The file field will be a Varchar2
parameter, because you receive the image path not the image itself.
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,
EMPTY_BLOB(), 'GIF' or 'JPEG') returning BLOB_OBJECT, consecutive into variable_blob,
variable_consecutive.
4. Load the file into table using:
dbms_lob.loadfromfile(variable_blob, variable_file_name, dbms_lob.getlength(variable_file_name));
dbms_lob.fileclose(variable_file_name);
commit.
Regards,
Simma........

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
(Id number,
Name CLOB,
Pict BLOB);
WHEN-BUTTON-PRESSED trigge
declare
     x varchar2(265);
begin
     x := get_file_name;
     read_image_file (x, 'GIF', 'picture.pict');
end;
Take care,
Tarek

Forms 9i and Oracle 9i work fine together for this case.

How to upload and display image using bsp application

hi
I just wants to know that
1- how to upload image from BSP page with attachment into sap server .?
2-how to display image in to BSP page(webpage).
thanks

Hello Gupta Prashant,
Just to upload and display an image, import image in MIME repository. Not only still images but also flash files can also be uploaded in the MIME repository. Once you import the image in it, use normal html code for image call;
<img src = "file.jpg/gif" width= height=>
Besides it, if your requirement is to store the image in the database and fetch it based on specified field-name, then you have to go for BLOBs i.e Binary Large Object, using this you can also store images, videos, pdfs, applications in the database.
MBLOB - Medium BLOBs store videos and pdfs,
LBLOB - Large BLOBs store movie files and applications.
You have got 2 ways to use it; some databases store BLOB objects into themselves and some store the path of the BLOB object maintained on the FTP server.
You can also implement it in ABAP;
read the following link and practice the tutorial;
[ Use of MIME Types|http://help.sap.com/saphelp_45b/helpdata/en/f1/b4a6c4df3911d18e080000e8a48612/content.htm]
also check this
[TYPES - LOB HANDLE|http://help.sap.com/abapdocu/en/ABAPTYPES_LOB_HANDLE.htm]
And looking at your question, in order to upload an image, you can make use of FILEUPLOAD tag provided by HTMLB.
Step 1: FILEUPLOAD provides a browse button to choose desired image file.
Step 2: Store that image in database using BLOBs.
Step 3: Retrieve the image using normal select query and display it on the screen.
Hope it helps you,
Zahack

Displaying server stored images in an air application

Usually when I go about displaying server stored images in a regular flex application I go about it the following way:-
- Create a mysql database table on a server which contains image names
- Create a php file which generates all of the image namesfrom the table as xml and upload this file to the server
- Create a new flex application/project
- In the application make a http service which points to my php/xml file and turns this data into an array collection
- Set the array collection to the dataprovider of a tilelist component so that all of the images will eventually be displayed within it when they are created
- I set the itemrenderer of the tilelist to an image component which has it's source set to something like source="{'assets/images'+ data.imagename}" with imagename being the field containing the name of the image which is stored in the mysql database table.
- Make a folder in the app/project called assets/images which will contain all of the images
- Upload the app to the server and once it runs all the images will be displayed in the application
- Then any images that are uploaded to the server can also be displayed as long as their names are added to the mysql database
My question is though how do you get server stored images to display within an Air Application? My air app will be used on multiple machines but I want the images in it to be dynamic i.e. stored on a server and can be changed. How can this be done?

I'm struggling to figure out how to access the image files when the assets/images folder will be on a server and the app itself will be on the user's desktop whereas usually in the case of a regular flex app this wouldn't mater as both the app and the image files would be on the server together. Is what I'm trying to do possible i.e. displaying images on a desktop air app straight from a server?

Storing Images using Datatype BLOB

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