Get binary value

Hi all
Consider that I have a string in hex like this:
3020058020C00004Now I wanna convert it to binary, then I wanna have each digit single. For example, binary value for above string is:
11000000100000000001011000000000100000110000000000000000000100And I wanna have
1
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0How can I achieve this?

            String s_hex = "3020058020C00004";
            String s_bin = Long.toBinaryString(Long.parseLong(s_hex, 16));
            for(int i = 0;i<s_bin.length();i++)
                System.out.println(s_bin.charAt(i));

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Assigning a hex value to a variable and getting binary value of a variable.

I try to develop java programs and I need to do a conversion unicode to EBCDIC and vice versa.
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I did a conversion like this with PL/1 before. I do not know how can I do it with Java. Because I am new to Java.
Thank you in advance.

I will run java code in mainframe and java uses
unicode for data in default and mainframe environment
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Hi all,
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I didn't get ur requirement..
As per my understanding, upload the XML file into an internal table and then loop over the internal table and get the values for ptype and pname..
XML ABAP - may b helpfull
Edited by: Veeranji Reddy on May 7, 2009 2:10 PM

Binary Values unreadable - Database corrupt?

Hi,
I'm experiencing a really weird problem here, I have a table with some varchar columns and two binary columns. What I do now, is to select data from it via Python with the following select statement:
select * from torder where customerid=1624 order by torderid desc
What happens is, that only for this customerid some binary data is missing, they contain an empty string. If I do the select like this:
select * from torder where customerid=1624 order by torderid
It does work, the data is there. With this, it works too:
select * from torder order by torderid desc
So it seems, the combination of "customerid=1624" and "desc" somehow corrupts the results.
What's furthermore interesting is, that when I delete the last inserted row of the result, it works, and if I add a new one, it's broken again.
I could not check if the error is Python-related or not, as I found no way to retrieve/display the binary data in sqlcli, as it displays only something like 0x8002637A6F70652E6931 , but I doubt that this has something to do with Python.
Any clues of how to fix this?
My database version is Kernel    7.6.06   Build 003-121-202-135 | X32/LINUX 7.6.06   Build 003-121-20
2-135
Previously, I had 7.6.03 and updated it to the above version, hoping that this would fix the problem, but it did not.
Best Regards,
Hermann Himmelbauer

Ok, first many thanks for your quick reply. I did not answer at first as the problem magically went away. But unfortunately the problem is back today.
<p/>
The DDL statements look the following, there are no indexes on the table:
<p/>
<pre>
CREATE TABLE torder (
        torderid INTEGER NOT NULL DEFAULT SERIAL,
        creation_date TIMESTAMP,
        transfer_date TIMESTAMP,
        signed_date TIMESTAMP,
        signed_with VARCHAR(3) CHECK (signed_with in ('TAN', 'BKU', 'MAN') OR signed_with IS NULL),
        revocation_date TIMESTAMP,
        done_date TIMESTAMP,
        formdata LONG BYTE NOT NULL,
        trans_function VARCHAR(30) NOT NULL CHECK (trans_function in ('do_bank_transfer', 'do_bank_collection',
                                'do_cheque_transfer', 'do_cash', 'do_cashdraw')),
        trans_type VARCHAR(30) NOT NULL CHECK (trans_type in ('national','sepa','international')),
        applet_location VARCHAR(35),
        errors_text VARCHAR(100),
        errors LONG BYTE,
        customerid INTEGER,
        dbuserid INTEGER,
        torder_periodicid INTEGER,
        PRIMARY KEY (torderid),
         FOREIGN KEY(customerid) REFERENCES kunde (kundeid),
         FOREIGN KEY(dbuserid) REFERENCES dbuser (dbuserid),
         FOREIGN KEY(torder_periodicid) REFERENCES torder_periodic (torder_periodicid)
</pre>
<p/>
The insert statements look the following (They are copied out of the SQLAlchemy SQL log), one can see that the binary values are inserted here:
<p/>
<pre>
INFO:sqlalchemy.engine.base.Engine.0x...d110:INSERT INTO torder (creation_date, transfer_date, signed_date, si
gned_with, revocation_date, done_date, formdata, trans_function, trans_type, applet_location, errors_text, err
ors, customerid, dbuserid, torder_periodicid) VALUES (now(), ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
INFO:sqlalchemy.engine.base.Engine.0x...d110:['20091027113506345604', None, None, None, None, '\x80\x02}q\x01(
U\x0bcharges_forq\x02U\x04bothq\x03U\x05dcodeq\x04U\x0588888q\x05U\x0ccurrency_isoq\x06U\x03EURq\x07U\x06valut
aq\x08K\x00U\x11foreign_acc_name1q\tU\x11Foreign Account 2q\nU\x0cacc_payer_noq\x0bX\t\x00\x00\x00999111110q\x
0cU\ttextlinesq\r]q\x0e(U\x0c1st transferq\x0fU\tMultilineq\x10U\x0bFor testingq\x11eU\x06amountq\x12cdecimal\
nDecimal\nq\x13U\x071000.00\x85Rq\x14U\x0cacc_benef_noq\x15X\t\x00\x00\x00888111110q\x16U\x11foreign_acc_name2
q\x17U\x0bfor Testingq\x18u.', 'do_bank_transfer', 'national', 'url:test_transfer', None, None, None, None, No
ne]
</pre>
<p/>
All rows are inserted with binary data, so it's never NULL and it's also never set to an empty string ('').
<p/>
But when reading back the rows, some binary values are an empty string.
<p/>
The following Python code illustrates the problem:
<pre>
import sapdb.dbapi
def true_false_result(result):
    if result:
        return 'Bug begins'
    else:
        return 'Bug ends'
def check_bincols(bdb, sqlcmd):
    print "----
    print "QUERY: %s" % sqlcmd
    print "----
    bdbc = bdb.cursor()
    bdbe = bdbc.execute(sqlcmd)
    bug_occured = False
    stored_bin_result = False
    while 1:
        row = bdbe.fetchone()
        if row is None:
            break
Now check if the binary data results to an empty string,
This should never happen (= the database bug)
        bin_result = (row[7]() == '')
        if bin_result != stored_bin_result:
            bug_occured = True
            print "Toggle to %s at torderid %s" % (
                true_false_result(bin_result),
                row[0])
            stored_bin_result = bin_result
    if not bug_occured:
        print "No Bug for this query"
    bdbe.close()
    bdbc.close()
#bdb.close()
if __name__ == '__main__':
    bdb = sapdb.dbapi.connect('USER', 'PASS', 'DBNAME', 'LOCALHOST')
First try the original query, which results in a bug
    sqlcmd = 'select * from torder where customerid=1624 order by torderid desc'
    check_bincols(bdb, sqlcmd)
This query normally is bugfree
    sqlcmd = 'select * from torder where customerid=1624 order by torderid'
    check_bincols(bdb, sqlcmd)
This query has a bug, too
    sqlcmd = 'select * from torder order by torderid desc'
    check_bincols(bdb, sqlcmd)
But this one not
    sqlcmd = 'select * from torder order by torderid'
    check_bincols(bdb, sqlcmd)
This triggers the bug, too, which is curious as there's practically no ordering
    sqlcmd = 'select * from torder where customerid=1624 order by customerid desc'
    check_bincols(bdb, sqlcmd)
So, it seems that the bug occurs only when using "DESC" for descending
ordering.
</pre>
<p/>
The output of this program is:
<p/>
<pre>
QUERY: select * from torder where customerid=1624 order by torderid desc
Toggle to Bug begins at torderid 1355
Toggle to Bug ends at torderid 582
QUERY: select * from torder where customerid=1624 order by torderid
No Bug for this query
QUERY: select * from torder order by torderid desc
No Bug for this query
QUERY: select * from torder order by torderid
No Bug for this query
QUERY: select * from torder where customerid=1624 order by customerid desc
Toggle to Bug begins at torderid 1355
Toggle to Bug ends at torderid 582
</pre>
<p/>
So, it can be seen that the problem occurs ONLY when using descending ordering. Moreover it's interesting that the result for "select * from torder order by torderid desc" is sometimes buggy, sometimes not, which seems to be related if someone inserted some more rows or not. What's furthermore interesting is the last query, as there the order is applied to "customerid", which is the very same for every row, so there is no ordering and the bug occurs here, too.
<p/>
All this happens on my production instance. I have a testing environment, where I imported the very same data set (same database version etc.) and there is no such problem (for now), so it's quite complicated to nail down the problem further as I cannot easily disrupt the availability of the production instance.
<p/>
All I could do for now is not to use the "DESC" command and reorder the data in my application, but that is really suboptimal as I have to keep all results in memory.
<p/>
Any help is really appreciated!
<p/>
Best Regards,<BR>
Hermann Himmelbauer
<p>
Update: I tried the same query with the following code with C++ / SQLDBC (I modified one of the SQLDBC examples):
<p>
<pre>
First you have to include SQLDBC.h
#include "SQLDBC.h"
#include <stdio.h>
typedef struct ConnectArgsT {
    char * username;
    char * password;
    char * dbname;
    char * host;
} ConnectArgsT;
static void parseArgs (ConnectArgsT * connectArgs, int argc, char **argv);
using namespace SQLDBC;
Let start your program with a main function
int main(int argc, char *argv[])
   ConnectArgsT connectArgs;
   parseArgs (&connectArgs, argc, argv);
   char errorText[200];
Every application has to initialize the SQLDBC library by getting a
reference to the ClientRuntime and calling the SQLDBC_Environment constructor.
   SQLDBC_IRuntime *runtime;
   runtime = SQLDBC::GetClientRuntime(errorText, sizeof(errorText));
   if (!runtime) {
     fprintf(stderr, "Getting instance of the ClientRuntime failed %s", errorText);
     return (1);
   SQLDBC_Environment env(runtime);
Create a new connection object and open a session to the database.
   SQLDBC_Connection *conn = env.createConnection();
   SQLDBC_Retcode rc;
   rc = conn->connect(connectArgs.host, connectArgs.dbname,
                      connectArgs.username, connectArgs.password);
   if(SQLDBC_OK != rc) {
     fprintf(stderr, "Connecting to the database failed %s", conn->error().getErrorText());
     return (1);
   printf("Sucessfull connected to %s as user %s\n",
          connectArgs.dbname, connectArgs.username);
Create a new statment object and execute it.
   SQLDBC_Statement *stmt = conn->createStatement();
   rc = stmt->execute("select * from torder where customerid=1624 order by torderid desc");
   if(SQLDBC_OK != rc) {
     fprintf(stderr, "Execution failed %s", stmt->error().getErrorText());
     return (1);
Check if the SQL command return a resultset and get a result set object.
   SQLDBC_ResultSet *result;
   result = stmt->getResultSet();
   if(!result) {
     fprintf(stderr, "SQL command doesn't return a result set %s", stmt->error().getErrorText());
     return (1);
Position the curors within the resultset by doing a fetch next call.
   while (1) {
     rc = result->next();
     if(SQLDBC_OK != rc) {
       break;
       //fprintf(stderr, "Error fetching data %s", stmt->error().getErrorText());
       //return (1);
     char szString[30];
     char szString1[3000];
     SQLDBC_Length ind;
Get a string value from the column.
     rc = result->getObject(1, SQLDBC_HOSTTYPE_ASCII, szString, &ind, sizeof(szString));
     if(SQLDBC_OK != rc) {
       fprintf(stderr, "Error getObject %s", stmt->error().getErrorText());
       return (1);
     rc = result->getObject(8, SQLDBC_HOSTTYPE_ASCII, szString1, &ind, sizeof(szString1));
     if(SQLDBC_OK != rc) {
       fprintf(stderr, "Error getObject %s", stmt->error().getErrorText());
       return (1);
     printf("%s %s\n", szString, szString1);
Finish your program with a returncode.
   return 0;
static void parseArgs (ConnectArgsT * connectArgs, int argc, char **argv)
setting defaults for demo database
    connectArgs->username = (char*)"USER";
    connectArgs->password = (char*)"PASS";
    connectArgs->dbname = (char*)"MYDB";
    connectArgs->host = (char*)"localhost";
use values from command line
    if (argc > 4) {
        connectArgs->host = argv [4];
    if (argc > 3) {
        connectArgs->dbname = argv [3];
    if (argc > 2) {
        connectArgs->password = argv [2];
    if (argc > 1) {
        connectArgs->username = argv [1];
</pre>
<p/>
This works!! So it seems, that the problem is related to the Python module, which is interesting, as adding "DESC" should not be any difference to it. I personally suspect that there are some memory leaks in the code, which result in this strange behavior.
<p/>
Any suggestions?<p/>
Best Regards<br>
Hermann Himmelbauer
Edited by: Hermann Himmelbauer on Oct 28, 2009 12:51 PM
Edited by: Hermann Himmelbauer on Oct 28, 2009 12:55 PM

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               <th><a href="#">REQUESTOR NAME</a></th>
               <th><a href="#">DUE DATE</a></th>
               <th><a href="#">REQUEST DATE</a></th>
               <th><a href="#">CLIENT</a></th>
               <th><a href="#">STATUS</a></th>
               <th><a href="#">PRIORITY</a></th>
               </tr>
          <c:forEach var="row" items="${param.ResearchResults}">
                    <tr title="">
                         <td id="researchID">${row.RESEARCH_ID}</td>
                         <td>${row.REQUESTER_FNAME} ${row.REQUESTER_LNAME}</td>
                         <td><fmt:formatDate pattern="MM/dd/yyyy" value="${row.DUE_DATE}"/></td>
                         <td><fmt:formatDate pattern="MM/dd/yyyy" value="${row.CREATED_DATE}"/></td>
                         <td>${row.CLIENT}</td>
                         <td>
                         <c:choose>
                           <c:when test="${row.STATUS=='10'}">New Request</c:when>
                           <c:when test="${row.STATUS=='20'}">In Progress</c:when>
                           <c:when test="${row.STATUS=='30'}">Completed</c:when>
                          </c:choose>
                         </td>
                         <td>
                         <c:choose>
                           <c:when test="${row.PRIORITY=='3'}">Medium</c:when>
                           <c:when test="${row.PRIORITY=='2'}">High</c:when>
                           <c:when test="${row.PRIORITY=='1'}">Urgent</c:when>
                          </c:choose>
                         </td>
                         </tr>
          </c:forEach>
     </table>
     </c:when>
     <c:otherwise>
     <div class="ui-state-highlight ui-corner-all">
               <p><b>No results Found. Please try again with a different search criteria!</b> </p>
          </div>
     </c:otherwise>
     </c:choose>
     </form>
          <%@ include file="/includes/footer.jsp"%>
     </div>
     </body>
</html>

What is ResearchResults?
Is it a request parameter or is it a request attribute?
Parameters and attributes are two different things.
Request parameters: the values submitted from the form. Always String.
Request attributes: objects stored into scope by your code.
They are also accessed slightly differently in EL
java syntax == EL syntax
request.getParameter("myparameter") == ${param.myparameter}
request.getAttribute("myAttribute") == ${requestScope.myAttribute}
You are referencing the attribute in your scriptlet code, but the parameter in your JSTL/EL code.
Which should it be?
cheers,
evnafets

Get selected values from Listbox control

Hi All,
I'm still new to SL so please bear with me.
I have a ListBox being bound with some records from a DB. Here's the xaml:
<ListBox x:Name="lstClassSeries" SelectionMode="Multiple" DisplayMemberPath="Description" Grid.Row="11" Grid.Column="1"></ListBox>
What I need is to get the values of the items that were selected and I can't seem to get it to work. I've tried looping through the SelectedItems but there's no property for value or text. I even tried to cast the item as a ListBoxItem but I
get the following error:
Unable to cast object of type 'UI.Silverlight.TransactionService.DTODropDown' to type 'System.Windows.Controls.ListBoxItem'.
How can I get the values of the items selected?
Thanks

You're using windows forms style techniques with xaml.
This is a bad idea.
You ought to learn MVVM.
You probably don't think you want to learn it, but trust me on this one.
Learn MVVM as soon as you can.
There's a selecteditems collection.
You have to cast to listboxitem, it has a content property which you cast to whatever you put in there originally.
Here's a snippet.
I have a class foo, load a bunch of them in. Do stuff. Work out what's selected in the click event of a button.
public class foo
public int id {get;set;}
public string description {get;set;}
public partial class MainPage : UserControl
public MainPage()
InitializeComponent();
lb.Items.Add(new ListBoxItem{Content=new foo{ id=1, description="a"}});
lb.Items.Add(new ListBoxItem { Content = new foo { id = 2, description = "b" } });
lb.Items.Add(new ListBoxItem { Content = new foo { id = 3, description = "c" } });
private void Button_Click(object sender, RoutedEventArgs e)
List<foo> selectedfoos = lb.SelectedItems.Cast<ListBoxItem>().Select(x=>x.Content as foo).ToList();
Hope that helps.
Recent Technet articles: Property List Editing;
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