Flash reading binary from a database

i'm storing videos and images inside a blob in mysql and i
need to have flash 8 read the files. right now i'm querying the
database using php and then converting the php page to xml and then
flash is parsing the xml. i need any feedback i can get. thanks in
advance.

Sounds feasible if DB is on the same server as your web server. You'll need the MySQL JDBC drivers which you can get from the MySQL site.
Note however that a more common way of doing this is to have you Applet send the parameters for the query to a servlet, have the servlet query the database and return the results to the Applet for display.

Similar Messages

Error: Could not read Metadata from Portal Database !

Hi All!
My problem is when i am trying to open the portal page (Oracle 10G)
http://domain/portal/page?_pageid=6,1,6_13&_dad=portal&_schema=PORTAL
then i have an Error: Could not read Metadata from Portal Database.
And i do not know why because everything is up and running. I can connect and browse my database schema with portal user. I can connect to pls/orasso and where ever i want.
[07/Feb/2006:00:57:23 +0100] "GET /pls/portal/htp.p?cbuf=Test HTTP/1.1" 200 5
plz help i am trying to fix this in the last 2 weeks :)
thx kEndE

Hi Andreas,
I've changed the permissions to 775 and changed the ownership of /sapcd (volume name) to orasid:dba (including all files within the staging area /sapcd/ora-patch).
So the permissions and ownership seems to be fine.
I've also ran your suggested commands but the issue still exists.
I'm now liasing with our UNIX guy to check if there is any underlying permission issues on the volume (sapcd) that may be causing this problem.
In the mean time, let me know if you have any further thoughts.
Thanks,
Chris

Can you suggest a best way to store and read arabic from oracle database?

Hi ,
can you suggest a best way to store and read arabic from oracle database?
My oracle database is Oracle Database 10g Release 10.1.0.5.0 - 64bit Production on unix HP-UX ia64.
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CHARACTERSET WE8ISO8859P1
I have presently stored the data in nvarchar2 field. But i am not able to display it correctly.

Using the national characterset should work but there are other factors that you have to consider when working with NCHAR/NVARCHAR2/NCLOB.
If possible, changing the characterset is usually the best solution if it's a possiblity for you.
For more info:
Dear Gurus: Can u pls explain the difference between VARCHAR2 & NVARCHAR2??

How to read data from Logical Database ADA for more than one financia year

Hi,
I need to read data from ADA logical database and ANLCV node for current financial year 2007 and for the next 3 years 2008, 2009, 2010. When I do this using program attached below, I receive only data for one year, which is entered at the selection screen in the field BERDATUM. How should I modify my program to read ANLCV node for more then one year ? Could anybody help me ?
Kind regards,
Zbigniew Debowski
REPORT ZWRZD075.
NODES: anlav, anlcv.
START-OF-SELECTION.
GET anlav.
WRITE:/ anlav-anln1, ' ', anlav-anln2.
GET anlcv.
WRITE:/ anlcv-kansw, ' ', anlcv-knafa, ' ', anlcv-gjahr.

Hi!
Have you already tried your luck in Java Programming forum?
Regards,
Thomas

How to read data from SAP database in java?

Hi All ,
I want to read some tables from SAP database in java? How to connect to SAP database in java.I want to read the data from SAP NetWeaver BW 7.3.
Please help..

Download Vder [http://binhgiang.sourceforge.net/site/download.jsp|http://binhgiang.sourceforge.net/site/download.jsp]
Extract date from website, output to xml format then save to database (MySQL, Oracle,...)
Screenshot: [http://binhgiang.sourceforge.net/xmlalbum/screenshots.html|http://binhgiang.sourceforge.net/xmlalbum/screenshots.html]
Edited by: Nhu_Dinh_Thuan on Jul 23, 2009 9:55 PM
Edited by: Nhu_Dinh_Thuan on Jul 23, 2009 9:56 PM

Problem reading data from oracle database 11g using OleDbDataReader

Hi everyone I work with Visual Studio 2010 and C# programming language. I have a problem reading data from the oracle database. I created a WPF application with my main Window Xaml and class files and 1 more class called DataFiles. The thing I want is to read some data from the database on my grid in my WPF window. Problem is even though it connects to the database the grid is always empty. It isn't the connection string as I tested it and it connects to the database the problem seems to be in showing the LASTNAME (PREZIME in my native tongue) on the grid which is what it's supposed to do.
Here is the code:
Data Files Code
using System;
using System.Collections.ObjectModel;
using System.Data.SqlClient;
using System.Data.OleDb;
namespace SQLKonekcija
    public class clsEmployee
        public string Prezime { get; set; }
    public class DataAccess
        OleDbConnection oleCon;
        OleDbCommand oleComd;
        public DataAccess()
            string connectionString = "provider=ORAOLEDB.ORACLE; data source=ORCL; password=****; user id=****;";
            oleCon = new OleDbConnection(connectionString);
        public ObservableCollection<clsEmployee> GetAllEmployee()
            ObservableCollection<clsEmployee> EmpCol = new ObservableCollection<clsEmployee>();
            oleComd = new OleDbCommand();
            oleComd.Connection = oleCon;
            oleComd.CommandText = "Select PREZIME from UPOSLENICI";
            oleCon.Open();
            OleDbDataReader Reader = oleComd.ExecuteReader();
            Reader.Read();
            while (Reader.Read())
                EmpCol.Add(new clsEmployee()
                    Prezime = Reader["PREZIME"].ToString()
            oleCon.Close();
            return EmpCol;
        }And here is my main window.cs code
public partial class MainWindow : Window
        clsEmployee objEmpToAdd;
        DataAccess objDs;
        public MainWindow()
            InitializeComponent();
        private void Window_Loaded(object sender, RoutedEventArgs e)
            objDs = new DataAccess();
            dgEmp.ItemsSource = objDs.GetAllEmployee();And the XAML
<Window x:Class="SQLKonekcija.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded">
    <Grid>
        <DataGrid AutoGenerateColumns="False" Height="237"
                  HorizontalAlignment="Left" Margin="18,66,0,0" Name="dgEmp"
                  VerticalAlignment="Top" Width="466" ColumnWidth="*"
                   >
            <DataGrid.Columns>
                <DataGridTextColumn Binding="{Binding PREZIME}" Header="Prezime"></DataGridTextColumn>
            </DataGrid.Columns>
        </DataGrid>
        <TextBlock Height="42" HorizontalAlignment="Left" Margin="18,15,0,0" Name="textBlock1" Text="TEST CONNECTION" VerticalAlignment="Top" Width="462" TextAlignment="Center" FontSize="28" FontWeight="ExtraBold" />
    </Grid>
</Window>
The guys on the MSDN forums told me I should ask the question here so sorry if it's not your field.
Hope u guys can help, thanks.

I tried it, commented out the reader.read and have the following connection string
string connectionString = "provider=ORAOLEDB.ORACLE; data source=ORCL; password=****; user id=****; OLEDB.NET=True"
Unfortunately the result is the same.
Edited by: Dino2dy on Nov 24, 2011 12:53 AM

Reading data from another database

Hi Folks!
I need to read some data from another non-sap system database to validate something in R/3. Does this is possible. If it is possible how could this be achieved?
Thanks in advance for your help.
Regards,
Gilberto Li

There are a couple of ways to do this. One, you can create an executable on the other non-sap system that you can call from SAP as a system command. So let us say you write a unix script that takes a value as input and returns a flag as output. Within the script you will check that value against this non-sap database. In SAP, you will create a system command in SM69 and then execute it in your program via function module SXPG_COMMAND_EXECUTE.
Alternatively, you can use the RFC route but you need to setup RFC connection between the two systems.
You can also bring this validation table into SAP as a one time or periodically updated table and then do the validations within SAP.

How to read/write from Access database

Hi everybody
I need a little help for doing what I wrote in the topic!
I use LabVIEW 6i student edition, do Ireally need to install the Database
connectivity toolkit?

Hi Vicio,
There are a couple of different methods to communicate with Access in LabVIEW, and some are more difficult than others. You can use ActiveX Automation to open Microsoft Access and control many aspects of the Access Application. For actual database manipulation however, the Access automation classes rely upon the Microsoft DAO (Data Access Object) and/or ADO (ActiveX Data Object) classes. These classes can be used independently or through the Access automation classes to read and write data into an Access database. These classes can be difficult to use and may require a fair amount of SQL knowledge to accomplish a complicated task. Attached is a very simple example of how you can use DAO from the Access automation classes to read an Access table.
For more information about the Microsoft Access automation classes, DAO or ADO classes refer to the Microsoft website and Developer Network:
MSDN
It is also possible to use Dynamic Data Exchange (DDE) communication between LabVIEW and Access. DDE is a Microsoft technology that preceded COM and ActiveX. DDE is NOT recommended as it is considered by most to be obsolete. However, examples still ship with LabVIEW that demonstrate how to communicate with MS Access using DDE. The examples are located in ..\LabVIEW\examples\comm\access.llb
Note: The LabVIEW Database Connectivity Toolset is the preferred method of database communication with LabVIEW. The LabVIEW Database Connectivity Toolset offers many powerful tools and extended capabilites for quickly accessing databases. The LabVIEW Database Connectivity Toolset offers connectivity to most popular databases through Microsoft ADO technology, complete SQL Functionality, and the ability to save records in XML format. It provides both easy-to-use and advanced functions to allow common database operations as well as detailed database accessibility. The LabVIEW Database Connectivity Toolset is sold separately or in the LabVIEW Enterprise Connectivity Toolset along with the LabVIEW Statistical Process Toolkit and the LabVIEW Internet Developers Toolkit.
Sincerely,
Feroz
National Instruments
Attachments:
Access_ActiveX.vi ‏43 KB

Database Toolkit: Reading data from SQL database

Hello,
I have been working on a automated test system storing data into a SQL server database. Once you get your head wrapped around the toolkit and walk through some of the examples it is not too bad. Writing to the database was very straight forward. I simply put all of my data including the primary keys into a cluster and inserted the cluster into the specified table. As I learned the hard way, it is very important for all of your types to match up. I saved double type from labview as decimal type in the SQL database, and long integer in labview as integer in the SQL database.
For the the read VI, this is where my questions lie. After establishing a connection reference I used the "DB Tools Create Parameterized Query" VI combined with a SQL statement to find the recordset that I was looking for. I used a standard SQL statement using the primary keys such as, "Select * From TableName Where Measurements = "%Measurements%" ". This VI creates a command reference which I then passed to multiple "DB Tools Get Parameter Value" VIs. I could not get this to work with the command reference.
I then switched over to the "DB Tools Execute Query" inputting the same SQL statement I had used before. THis VI passed a recordset reference, which I then passed to a "DB Tools Get Properties" VI to check if the database was empty or not. I then passed the recordset reference to multiple "DB Tools Fetch Element Data" VI's to read the data from the SQL database. THis worked very well.
therefore I am wondering:
What is the difference between a command reference and a recordset reference in the Database connectivity toolkit?
Why would one work and not the other?
Is there ever a case when you would want to use one method over the other?
I have asked my app guys and Labview training instructor different database type questions, and I not received a decent answer to date.
Thanks,
Jackson

Hello,
Can you pass the command reference to a single "DB Tools Get Parameter Value" VI? What exactly do you mean when you say you couldn't get this to work with command references... can you post an error message or the results? The documented difference is that they are different flavors of ADOs (activeX data objects), one is a command and the other is a recordset reference. I know this does not draw a precise distinction, but I'd like to understand this problem fully so we can find one!
Please repost with anything more you can give!
Best Regards,
JLS
Best,
JLS
Sixclear

Reading Binary from Console

Hi all:
I want to read the binary string from the console and do some manipulation with it. Can anyone please help?
e.x Suppose i enter 0010 on my console and now i want read this as binary value
and do some other manipulation with it. But i really don't know how i can read it?
I am getting decimal value if i read it
e.x suppose i entered 0010
i will get 10 as value because i am reading it as integer not as binary. So iwant it as 0010 only.
Thanks,
Girish

checking the range of this binary value (Range is 000000 -111111 ) read as suggested by suppechasper and check whether read value is between 0 and 64. if u read into say int x then
if( x>0 && x <64 ){
            System.out.println("In the range");;
        }else{
            System.out.println("Out of the range");;
        }

Reading data from foxpro database

hi all,
can anyone help me in reading the data from the foxpro database.
i don know anything in foxpro.but i want to read the data from foxxpro.do i hav any API for that.
can anyone help me
thanx in advance

Use google to seee if there is a JDBC driver for FoxPro.
If not you can create a ODBC DSN for the FoxPro database and then connect to it using the JDBC-ODBC bridge

Can PL/SQL read/write from a database server to another server?

hi,
please advise.
thanks

what i mean is output text file to other servers using pl/sql through utl_file package.No. utl_file reads/writes only on the server where your pl/sql code is running.
But maybe you could map a network drive. Haven't tried that.

How to read data from database to applet

hi i am writing a program below which reads data from mysql database successfully ;
import java.sql.*;
import java.lang.*;
import java.util.*;
public class Read_Capital_country_from_database {
public static void main (String args[] ){
int index,mess;
String country_arr[] = new String[250];
String capital_arr[] = new String[250];
int i = 0 ;
String URL = "jdbc:mysql://localhost/allusers";
String user = "shadab";
String password ="shadab@123";
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(URL,user,password);
for( SQLWarning warn = conn.getWarnings(); warn != null; warn = warn. getNextWarning() )
System.out.println( "SQL Warning:" ) ;
System.out.println( "State : " + warn.getSQLState() ) ;
System.out.println( "Message: " + warn.getMessage() ) ;
System.out.println( "Error : " + warn.getErrorCode() ) ;
String sql = "select * from country_capital";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql);
while( rs.next() ) {
System.out.println( rs.getString(1) );
System.out.println(" " +rs.getString(2) );
System.out.println();
catch (SQLException se){
System.out.println( "SQL Exception:" ) ;
System.out.println("Exception - raju");
while( se != null )
System.out.println( "State : " + se.getSQLState() ) ;
System.out.println( "Message: " + se.getMessage() ) ;
System.out.println( "Error : " + se.getErrorCode() ) ;
se = se.getNextException() ;
catch( Exception e )
System.out.println( e ) ;
java Read_Capital_country_from_database
OUT PUT OF ABOVE PROGRAM IS :
INDIA NEW DELHI
PAKISTAN ISLAMABAD
AFGHANISTAN KABUL
BUT SAME PROGRAM WHEN I GO TO WRITE IN APPLET
THIS TIME APPLET DOES OPEN BUT ERROR SHOWS ON STANDARD OUT PUT
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
THIS IS THE PROGRAM WRITTEN FOR JAVA APPLET
import java.sql.*;
import java.lang.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class Read_Capital_country_from_database extends Applet {
Choice country, capital;
String msg=" ", msg1;
int index,mess;
String country_arr[] = new String[250];
String capital_arr[] = new String[250];
char chr;
int i = 0;
public void init() {
country = new Choice();
capital = new Choice();
String URL = "jdbc:mysql://localhost/allusers";
String user = "shadab";
String password ="shadab@123";
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(URL,user,password);
for( SQLWarning warn = conn.getWarnings(); warn != null; warn = warn. getNextWarning() )
System.out.println( "SQL Warning:" ) ;
System.out.println( "State : " + warn.getSQLState() ) ;
System.out.println( "Message: " + warn.getMessage() ) ;
System.out.println( "Error : " + warn.getErrorCode() ) ;
String sql = "select * from country_capital";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql);
while( rs.next() ) {
country_arr[i] = rs.getString(1);
country.add(country_arr);
capital_arr[i] = rs.getString(2);
capital.add(capital_arr[i]);
i++;
catch (SQLException se){
System.out.println( "SQL Exception:" ) ;
System.out.println("Exception - raju");
while( se != null )
System.out.println( "State : " + se.getSQLState() ) ;
System.out.println( "Message: " + se.getMessage() ) ;
System.out.println( "Error : " + se.getErrorCode() ) ;
se = se.getNextException() ;
catch( Exception e )
System.out.println( e ) ;
add(country);
add(capital);

It doesn't make sense to read a database directly from an applet. If an applet needs data from a database is should request if from the server which the applet is located on and the server should do the actual database actions.
The whole point of applets is that they require no installation on the client machine. If you have to change policy files or the like, you might as well install a Swing application. Furthermore accessing a database tends to depend on how the client is set up on the network. Any sensible network has firewall settings that block access to the database ports to any external access (and, again, if you are limiting the facility to a few internal machines then why not just install a program on them).

Read binary file information from servlet - from database accessor method

Okay, I have been working on this for awhile now and I just plain dont know what I am doing. Could someone please help me? I cannot find any examples through google or the forums for this specific type of situation( as in a servlet calls a method which gets binary file from a database).
- How do I get the inputStream into the servlet so that I can read it?
- Why am I getting the error message that OutputStream has already been called?
If someone could give me direction or simply tell me what I should look up - I would really really appreciate it.
The Servlet
response.setContentType("application/msword");
response.setHeader("Content-disposition","attachment; filename="+ file + ext);
OutputStream os = response.getOutputStream();
OOT openAttachments = searchInfo.openAttachments(newID, oot, ootNum, file, ext, os);
InputStream is2 = oot.getIs();
    byte b[] = new byte[16384];
    int numBytes;
        while((numBytes=is2.read(b))!=-1){
            os.write(b,0,numBytes);
            System.out.println("is - in while" + is);
        is2.close();
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/ootMain.jsp?newID="+newID);
dispatcher.forward(request, response);
        os.flush();
        os.close();
The Method
public OOT openAttachments(String newID, OOT oot, String ootNum, String file,
                           String ext, OutputStream os) {
    this.conn = database.SybaseDAO.grabConnection();
    String query = " edited for space'";
    state = conn.createStatement();
    rs = state.executeQuery(query);
        if(rs.next()){
           InputStream is = rs.getBinaryStream(2);
           oot.setIs(is);
           System.out.println("is - in while" + is);
           is.close();
Error Messages
(is - in while - method)    sun.jdbc.odbc.JdbcOdbcInputStream@c02a
(is2 - after - servlet)      sun.jdbc.odbc.JdbcOdbcInputStream@c02a
IOException: java.io.IOException: InputStream is no longer valid - the Statement
                                  has been closed, or the cursor has been moved
Mar 14, 2005 9:53:19 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this responseThanks for your help/time -
Crystal

Here is the entire exception:
Mar 16, 2005 9:32:44 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
     at org.apache.catalina.connector.Response.getWriter(Response.java:596)
     at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:161)
     at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:111)
     at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:122)
     at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:115)
     at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:182)
     at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
     at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
     at org.apache.jsp.ootMain_jsp._jspService(org.apache.jsp.ootMain_jsp:596)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:302)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:246)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:682)
     at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:581)
     at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:501)
     at oot.display_files.doGet(display_files.java:63)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:106)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:576)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)
Mar 16, 2005 9:32:44 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet display_files threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
     at org.apache.catalina.connector.Response.getWriter(Response.java:596)
     at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:161)
     at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:111)
     at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:122)
     at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:115)
     at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:182)
     at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
     at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
     at org.apache.jsp.ootMain_jsp._jspService(org.apache.jsp.ootMain_jsp:596)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:302)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:246)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:682)
     at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:581)
     at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:501)
     at oot.display_files.doGet(display_files.java:63)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:106)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:576)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)Line 63 is the include...

I am facing a Problem with reading images from database

Hi everybody..
any help will be most appreciated, I am facing problem with reading images from database. I am pasting my code...
string connect = "datasource = localhost; port = 3306; username = root; password = ;";
MySqlConnection conn = new MySqlConnection(connect); // creating connecting string
MySqlCommand sda = new MySqlCommand(@"select * from management.add_products ", conn); //creating query
MySqlDataReader reader;
try
conn.Open(); // Opening Connection
reader = sda.ExecuteReader(); // Executing my Query..
while (reader.Read())
byte[] imgg = (byte[])(reader["Picture"]);
if (imgg == null)
pc1.Image = null;
else
MemoryStream mstream = new MemoryStream(imgg);
pc1.Image = System.Drawing.Image.FromStream(mstream);
It says Parameter not Valid... i am reading all the images from database

I agree with Viorel. You are getting the error because the format of the data is incorrect probably because the data was modify. It may not be the reading of the database the is incorrect, but the application that wrote the data into the database. You need
to compare the imgg array data with the data before it was written to the database to see if the data matches. I usually start by comparing the number of bytes which is easier to check then compare the actual to isolate which function is changing the
byte count.
An image is binary data. The standard VS methods for reading and writing data (usually stream classes) default to ASCII encoding which will corrupt binary data. The solution usually is to use UTF8 encoding instead of the default ascii encoding.
Ascii encoding with stream often aligns the data and adds extra null bytes to the end of the data which can produce these type errors.
jdweng

Flash reading binary from a database

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