Displaying .jpg images stored in the database

I created a table and a form to store .jpg images then display the .jpg files in a dynamic page.
I can insert the images and display the dynamic page but selecting the HREF link will not dispaly the .jpg file.
I used the Metalink DocID: Note:68016.1 Subject:Browsing database image objects to create the package.
The package code is as follows
Create or Replace PACKAGE OREF.IMG
as
PROCEDURE select_img_table;
PROCEDURE retrieve_img_data(img_id varchar2);
end;
Create or Replace PACKAGE BODY OREF.IMG
AS
PROCEDURE select_img_table AS
CURSOR c1 IS SELECT id, name FROM filestore;
BEGIN
htp.bodyopen;
FOR i IN c1 LOOP
htp.print(TO_CHAR(i.id));
htp.print(i.name);
htp.anchor('../../pls/oref/IMG.retrieve_img_data?img_id='||to_char(i.id),'jpg',null,null);
htp.br;
htp.bodyclose;
END LOOP;
END select_img_table;
PROCEDURE retrieve_img_data(img_id varchar2) AS
Lob_field BLOB;
buffer RAW(32767);
offset BINARY_INTEGER:=1;
buffer_size NUMBER:=32767;
BEGIN
SELECT object INTO lob_field FROM filestore WHERE id=img_id;
OWA_UTIL.MIME_HEADER('image/jpg');
LOOP
DBMS_LOB.READ(lob_field,buffer_size,offset,buffer);
htp.prn(UTL_RAW.CAST_TO_VARCHAR2(buffer));
offset:=offset+buffer_size;
END LOOP;
EXCEPTION
WHEN NO_DATA_FOUND THEN
null;
END retrieve_img_data;
END img;
*The dynamic page Code is as follows:
<HTML>
<HEAD>
<TITLE>Display Filestore Table</TITLE>
</HEAD>
<BODY>
<H2>Display of .jpg files in the Filestore Table</H2>
<ORACLE>select id, ''||name||''
from oref.filestore</ORACLE>
</BODY>
</HTML>

You'll need to provide a full URL link to the image ("http://mywebserver/file/images_personnel/28.jpg"), not just a relative path. Remember, the email client that is used to view the email content knows nothing of the internals of your web server - it can only follow a complete URL to get images and other resources.
-Carl V.

Similar Messages

Display images stored in the database

I have images stored in the databse. I followed the steps provided in the oracle documentation. Now i want to retrive the image from the database into a java object that can be dislayed in , say, a JLabel. I am able to retrieve the image from the database into the OrdImage in the oracle.java.ord package and view the properties of the image. But unable to retrive the image as such to be displayed.
Thanking You
vinay

This might help...
import javax.imageio.*;
import javax.imageio.stream.*;
import javax.swing.*;
import java.awt.*;
import java.sql.*;
import java.io.*;
import oracle.jdbc.driver.*;
import oracle.sql.* ;
import oracle.ord.im.*;
import java.awt.event.*;
public class HelloDBImage implements ActionListener{
OracleConnection con = null;
JLabel label = null;
String textFieldString = "Image ID entered";
public void actionPerformed(ActionEvent e)
String prefix = "You typed \"";
if (e.getActionCommand().equals(textFieldString))
JTextField source = (JTextField)e.getSource();
ImageIcon imgIcon = createImageIcon(source.getText());
if (null != imgIcon)
// Create image Label
label.setText(null);
label.setIcon(imgIcon);
else
label.setIcon(null);
label.setText("Image not found! ");
source.setText("");
label.repaint();
//actionLabel.setText(prefix + source.getText() + "\"");
public ImageIcon createImageIcon(String key)
Image image = null;
ImageIcon imgIcon = null;
try
     // Connect to the database if necessary
if (null == con) con = connect();
// Create Input Stream from DB image.
InputStream is = new BufferedInputStream(
getDBInputStream(con, key));
if (null != is)
// Create Image from Image Input Stream
ImageInputStream iis = ImageIO.createImageInputStream(is);
image = ImageIO.read(iis);
// Create Image Icon from ImageInputStream
if (null != image) imgIcon = new ImageIcon(image);
} catch (Exception e)
System.out.println("exception raised " + e);
     e.printStackTrace();
return imgIcon;
public Component createPanelAndContents(String key)
// Create the image label
ImageIcon imgIcon = createImageIcon(key);
if (null != imgIcon)
// Create image Label
label = new JLabel(imgIcon);
else
label = new JLabel("Image not found! ");
// Create layout
GridBagLayout gridBag = new GridBagLayout();
// Create panel to draw in
JPanel pane = new JPanel();
pane.setLayout(gridBag);
GridBagConstraints c = new GridBagConstraints();
JScrollPane scrollPane = new JScrollPane(label,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
c.fill = GridBagConstraints.BOTH;
c.weightx = 1.0;
c.weighty = 1.0;
gridBag.setConstraints(scrollPane, c);
c.gridwidth = GridBagConstraints.REMAINDER;
c.fill = GridBagConstraints.HORIZONTAL;
scrollPane.setMinimumSize(new Dimension(300, 300));
pane.add(scrollPane, c);
// Add a text field and label to get anoter image
JTextField textField = new JTextField(10);
textField.setActionCommand(textFieldString);
textField.addActionListener(this);
// Add fields for input
JLabel promptLabel = new JLabel("Please enter DB key: ");
     pane.add(promptLabel);
pane.add(textField, c);
return pane;
public static void main(String[] args)
String key = "1";
try
UIManager.setLookAndFeel(
UIManager.getCrossPlatformLookAndFeelClassName());
} catch (Exception e) { }
//Create the top-level container and add contents to it.
JFrame frame = new JFrame("SwingApplication");
HelloDBImage app = new HelloDBImage();
if ((args.length > 0) && (args[0] != null)) key = args[0];
System.out.print("length= " + args.length + "/" );
if (args.length > 0) System.out.println(args[0]);
Component contents = app.createPanelAndContents(key);
frame.getContentPane().add(contents, BorderLayout.CENTER);
//Finish setting up the frame, and show it.
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
frame.pack();
frame.setVisible(true);
public InputStream getDBInputStream(OracleConnection con, String key)
InputStream is = null;
try
     int index = 0;
     Statement s = con.createStatement();
     OracleResultSet rs =
     (OracleResultSet)s.executeQuery("select * from images " +
"where item_id = " + key );
     if (rs.next()) // Just get first image if more than 1.
     index = rs.getInt(1);
     OrdImage imgObj =
(OrdImage) rs.getCustomDatum(2, OrdImage.getFactory());
is = imgObj.getContent().getBinaryStream();
catch(Exception e)
System.out.println("exception raised " + e);
e.printStackTrace();
return is;
public OracleConnection connect() throws Exception
String connectString;
Class.forName ("oracle.jdbc.driver.OracleDriver");
connectString = "jdbc:oracle:oci8:@orcl";
OracleConnection con = (OracleConnection)
DriverManager.getConnection(connectString,"scott",
                    "tiger");
con.setAutoCommit(false);
return con;

Displaying images stored in the database

Hi,
I'm saving image files (bmp, jpg, gif) in the database as binary data (I'm using SQL Server). Then, I have to retrieve this file and show the image in a JSP.
I'm using Struts 1.1, SQLServer and weblogic.
How can I do this?
Thanks

Here is a good starting point:
http://forum.java.sun.com/thread.jsp?thread=338890&forum=45&message=1391475

How to view images stored in the database

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Regards

query = "Select * From (SELECT *,COUNT(1) OVER (PARTITION BY ENo) AS Occur FROM EmpLeave)t Where Occur >1)";
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Image compressed and stored in the database.

Hi,
We have a tiff file stored in the database and then compressed using the following Intermedia Oracle method.
process ('compressionFormat=FAX4,maxScale=1696 2200'); and save it back in the database.
This oracle database is 8.1.7.4. The tiff file gets processed when we use TIFF file generated by old scanner but errors out with the TIFF file generated by latest scanners.
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There is a difference in TIFF version in the outputs generated by two scanners,
The compression option : TIFF modified G3 in the old one
while the new one has Lempel-Ziv
Also, the tiff is loaded and saved fine but the image gets corrupted after the intermedia process method is run.

Thank you for your reply. I am glad to find that I did not miss an option. I was aware that I could move my pictures into some other folder, but you have forgotten the solution that I chose. That was to go back and use ZoomBrowser, which works to access photos in any folder I choose. In addition it loads promptly. I have only spent a brief time using the ImageBrowser but don't recall seeing any enhancements that over ZoomBrwoser. Perhaps if I was attempting to interface with other software but as a stand-alone product, well perhaps you could enlighten me as to what makes ImageBrowser EX a better product.. Regarding the Accept as Solution: are you implying that Canon restricts their search function to only those responses that the OP marks as accepted?

Can Discoverer have link to display documents stored outside the database?

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file_id NUMBER(10),
date_content DATE,
mime_type VARCHAR2(100),
blob_content BLOB
ORGANIZATION EXTERNAL
TYPE ORACLE_LOADER
DEFAULT DIRECTORY EIF
ACCESS PARAMETERS
RECORDS DELIMITED BY NEWLINE
BADFILE EIF:'lob_tab_%a_%p.bad'
LOGFILE EIF:'lob_tab_%a_%p.log'
FIELDS TERMINATED BY ','
MISSING FIELD VALUES ARE NULL
file_id CHAR(10),
date_content CHAR(11) DATE_FORMAT DATE MASK "DD-MON-YYYY",
mime_type CHAR(100),
blob_filename CHAR(100)
COLUMN TRANSFORMS (blob_content FROM LOBFILE (blob_filename) FROM (EIF) BLOB)
LOCATION ('lob_test_data.txt')
PARALLEL 2
REJECT LIMIT UNLIMITED
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Just wondered if you'd be good enough to critique this approach.
THank you, Julie.

Best ways to view/display PDF/Excel files stored in the Database

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Oracle reports to display PDF/Excel files stored in the Database

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A document stored in the database can be easily retrieved in or via the browser using mod_plsql. Simplified:
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into v_blob, v_mime_type
from ...
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owa_util.http_header_close;
wpg_docload.download_file(v_blob);So, the link in your report should point to this database procedure.
Edited by: InoL on Mar 1, 2011 4:17 PM

Evaluation of html stored in the database

Hello everyone, here is my story.
I have html stored in the database that I am using in regions. The region is a pl/sql anonymous block with code similar to this.
DECLARE
testt varchar(30000);
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htp.p(testt);
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Here is what the image location is supposed to look like
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However
Replacing occurences of '#WORKSPACE_IMAGES' with 'WORKSPACE_IMAGES' in the database
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you may skip this step. Otherwise,
Create a schema to hold the WebUtil stored code, and privileges needed to
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to the CLASSPATH entry.
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Open webutil.olb, and Subclass (not Copy) the Webutil object to the form.
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Have a field (Manager) where the user selects their manager from the select list(generated from the query below)
select FIRST_NAME || LAST_NAME d, MANAGER_ID r
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Have the Manager field specifications set as:
Source Used: Only when current value is session state is null
Source Type: Database column
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Well, how have you created this form... manually or using wizard. If you have used wizard, then it would have asked you to select the table and it would have created process to update the same.
If you have created this form manually then you need to add a processs to update this to database...
Regards,
Shijesh

How to get values/data stored in the database into a list-item.

how to get values/data stored in the database into a list-item.
i tried to make a list item without any values assigned to it...but i got the below error.
FRM-30191: No list items defined for required poplist.
or
FRM-32082: Invalid value for given item type.
List EMPNO
Item: EMPNO
Block: EMP
Form: MODULE5
FRM-30085: Unable to adjust form for output.
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when-new-form-instance
declare
     rg_name varchar2(40) := 'emp_rec';
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Hello Jens,
I am using the standard procedure from the manual:
CREATE OR REPLACE PROCEDURE download_my_file_pr (p_file IN NUMBER)
AS
v_mime VARCHAR2 (255);
v_length NUMBER;
v_file_name VARCHAR2 (2000);
lob_loc BLOB;
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SELECT mime_type, blob_content, NAME, DBMS_LOB.getlength (blob_content)
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Hi all,
One of our developers is trying to write a code that would send the output report (pdf)of a process through mail, typical work flow stuff.But the problem is that we are not supposed to hard code the value of report repositiry from where the report has to be picked.can anybody suggest a table in the database from where the value of report repository can be queried.
we tried using
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here we updated the value in report repository field and saved it and queried again.
But this didnt solve our problem.
Its showing the previous value which is different from the actual report repository path.
all the servers are in solaris box.
please suggets.
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Right now, I am trying to send a PDF (XML Publisher report) as an email to our vendors (it is their ACH Advice).
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I hope this helped answer your question.
Good Luck!
Jennifer

What else are stored in the database buffer cache?

What else are stored in the database buffer cache except the data blocks read from datafiles?

That is a good idea.
SQL> desc v$BH;
Name                                                                                                      Null?    Type
FILE#                                                                                                              NUMBER
BLOCK#                                                                                                             NUMBER
CLASS#                                                                                                             NUMBER
STATUS                                                                                                             VARCHAR2(10)
XNC                                                                                                                NUMBER
FORCED_READS                                                                                                       NUMBER
FORCED_WRITES                                                                                                      NUMBER
LOCK_ELEMENT_ADDR                                                                                                  RAW(4)
LOCK_ELEMENT_NAME                                                                                                  NUMBER
LOCK_ELEMENT_CLASS                                                                                                 NUMBER
DIRTY                                                                                                              VARCHAR2(1)
TEMP                                                                                                               VARCHAR2(1)
PING                                                                                                               VARCHAR2(1)
STALE                                                                                                              VARCHAR2(1)
DIRECT                                                                                                             VARCHAR2(1)
NEW                                                                                                                CHAR(1)
OBJD                                                                                                               NUMBER
TS#                                                                                                                NUMBERTEMP      VARCHAR2(1)      Y - temporary block
PING      VARCHAR2(1)      Y - block pinged
STALE      VARCHAR2(1)      Y - block is stale
DIRECT      VARCHAR2(1)      Y - direct block
My question is what are temporary block and direct block?
Is it true that some blocks in temp tablespace are stored in the data buffer?

Displaying .jpg images stored in the database

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