Shifting binary values

Hi ,
I was wondering if someone is still awake and can help me out here. I am trying to do Right Shift operation on the attached values. I need to shift the values by 2 places to the Right.
for example, 1110011011111 will become 0011100110111.
meaning add two 0 at the front and remove the last 2 digit.
Attachments:
shifting values.vi ‏9 KB
shifting values.vi ‏9 KB

Is that your actual data? A sequence of the characters "1" and "0" (not the actual numbers 0 and 1), with tabs in between? The Logical Shift function only works with numbers. So, if that's your actual data, you first need to convert it to an array of numbers, and then you can use the Logical Shift function. You can convert the string to an array using the Spreadsheet String to Array and then use Scan From String to convert the sequence of character to a number.
EDIT: Was creating my response while RF was posting his reply.
Attachments:
shifting values_BD.png ‏4 KB

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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:
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So it seems, the combination of "customerid=1624" and "desc" somehow corrupts the results.
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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.

The DDL statements look the following, there are no indexes on the table:

<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>

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:

<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>

All rows are inserted with binary data, so it's never NULL and it's also never set to an empty string ('').

But when reading back the rows, some binary values are an empty string.

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>

The output of this program is:

<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>

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.

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.

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.

Any help is really appreciated!

Best Regards, 
Hermann Himmelbauer

Update: I tried the same query with the following code with C++ / SQLDBC (I modified one of the SQLDBC examples):

<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>

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.

Any suggestions?
Best Regards 
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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weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:503) at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:251) at org.apache.beehive.netui.pageflow.internal.DefaultForwardRedirectHandler.forward(DefaultForwardRedirectHandler.java:128) at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.doForward(PageFlowRequestProcessor.java:1801) at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processPageFlowRequest(PageFlowRequestProcessor.java:741) at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:474) at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:853) at org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:631) at org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:158) at 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CFGRID shifting column values

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the value of column 4 would display as column 3 on the processor
page. Below is the code:
cfgrid page:
<cfform method="post" name="adcost"
action="index.cfm?fuseaction=process_advertising_cost_grid">
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format="HTML"
query="advertizingcosts"
selectMode="edit"
colHeaders="true"
colHeaderBold="yes"
width="600"
maxRows="25"
stripeRows="yes"
stripeRowColor="efefef"
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<cfgridcolumn name="AdvertizingCostsID" header="ID"
width="20" select="no">
<cfgridcolumn name="AdvertizingCostsDate"
header="Advertizing Costs Date" mask="MMMM D, YYYY" width="160">
<cfgridcolumn name="Amount" header="Amount"
width="60">
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<cfgridcolumn
name="StoreFrontName"
header="StoreFront"
width="150"
values="#ValueList(storefronts.StoreFrontCode)#"
valuesDisplay="#ValueList(storefronts.StoreFrontName)#"
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<input type="submit" value="submit" class="button" />
</cfform>
processor page:
<cfif
IsDefined("form.advertizingCosts.RowStatus.Action")>
<cfloop index="counter" from="1"
to="#ArrayLen(form.advertizingCosts.RowStatus.Action)#">
<cfoutput>

counter is #counter# 
The row action for #counter# is
#form.advertizingCosts.RowStatus.Action[counter]# 
AdvertizingCostsID is
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AdvertizingCostsDate is
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<pre>
Original AdvertizingCostsDate:
#form.advertizingCosts.Original.AdvertizingCostsDate[counter]#
Original Amount:
#val(form.advertizingCosts.Original.Amount[counter])#
Original Details:
#form.advertizingCosts.Original.Details[counter]#
Original StoreFrontName is
#form.advertizingCosts.Original.StoreFrontName[counter]#
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<cfelse>
</cfif>
</cfoutput>
</cfloop>
</cfif>
The Amount data would end up going to the details column, the
date appears as the amount on the second page. This page only
displays values.
It looks to be correct, but I'm not sure what is causing the
shifting.
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which obviously returns a very different resultNo it does not ... let's translate the example to decimal (with additions instead of bitwise operations, but that doesn't change anything:
1234 +
0001
1235and
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1
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Convert decimal to binary values

Hello friends, I have this:
Doblue [ ][ ] dbValues;and I need convert that array in a binary values...and save it in a File
Do you know how can I do it?....thanks

So, I need create a binary file, how can I creat
it??..thanks....There. Are. No. Files. That. Are. Not. Binary.
File f = new File("/wherever/whatever.name");
FileOutputStream fos = new FileOutputStream(f);Wrap an ObjectOutputStream around fos and stuff in the array. Like I already said.

Binary value to string

Hi,
I want to convert binary value to string format. How can i do that if possible please give me sample code.?
One more question is i want to do reverse thing also that is convert string value to binary format.?
Waiting for reply

There are methods in Integer, Long etc for transforming to binary.
I think there are probably also methods to go from binary to an int. Check out the JavaDoc

Issues storing binary values

Hi,
I am desperately trying to store userCertificate or cACertificate attributes on an OpenLDAP server. I always end up with following exception:
javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 21 - cACertificate;binary: value #0 invalid per syntax]; remaining name 'cn=1234,�'
The code I am using looks like this:
Attributes attrs = new BasicAttributes(true);
Attribute objclass = new BasicAttribute("objectclass");
objclass.add("top");
objclass.add("applicationProcess");
objclass.add("pkiCA");
attrs.put(objclass);
byte[] certBuf = new byte[] {1,2,3,4,5};
BasicAttribute cert = new BasicAttribute("cACertificate;binary", certBuf);
attrs.put(cert);
Context result = _ctx.createSubcontext("cn=1234,�I assume I need the �;binary� option, as I get following exception if I don�t use it:
javax.naming.directory.InvalidAttributeIdentifierException: [LDAP: error code 17 - cACertificate: requires ;binary transfer]; remaining name 'cn=234,�
The very strange thing is that I have tried to add a jpegPhoto (same dummy-data as the certificate )to the LDAP server and this works fine - without the �;binary� option:
BasicAttribute photo = new BasicAttribute("jpegPhoto", photoBuf);I don�t think that it is a matter of the JRE as I have tried version 1.4, 1.5 and 1.6. I am also not sure if it is OpenLDAPs fault because it is possible to add those Attributes by using a LDAP client (in my case LDAPStudio).
Does anybody know this issue?
Thanks for any help,
Phil

caCertificate has a well known syntax defined in X.509.
OpenLDAP does have support for these X.509 syntaxes and will verify that the certificate you are adding to the server is valid.
Clearly certBuf = new byte[] {1,2,3,4,5}; is not a valid certificate.
Regards,
Ludovic.

Doubt on calculating Hexadecimal and binary values

Please give me some tips to find the hexadecimal and binary values of negative numbers for eg:-
The hexadecimal value of -1 is 0xffffffff. Here I don't know how the corresponding hex value is calculated.
I calculate the hex value of numbers in this way. For eg: to get the hex value 11
1*16^1 + 1*16^0 = 17.
Similar logic to convert binaries to decimal by using the base 10.

It's about 2s complement arithmatic.
Hexidecimal representation is used by people interested in the bit patterns, rather than numerical values as such so integers are treated as unsigned. But when working in decimal we're generally treating the variable as signed. Negative integers are represented by "adding" 2^32 to them so -1 becomes 2^32-1. This is stored as a word where all bits are 1s, which means in hex all nybles are 'F'.

CacheStore access to binary value in store/storeAll

What is the best way to get the raw binary value of the entry(ies) in a store/storeAll CacheStore method?

Hi Jk,
Thanks. This is actually what i had been trying without any success (although i mistakenly said BinaryStoreCacheStore rather than BinaryEntryStore in the post above). When the BinaryEntryStore.store is called, i try and convert just the key back to object with:
Object o = ExternalizableHelper.fromBinary(paramBinaryEntry.getBinaryValue());
but like i mentioned above, this throws the following as it seems to think the binary is not pof.
java.io.StreamCorruptedException: invalid type: 171
     at com.tangosol.util.ExternalizableHelper.fromBinary(ExternalizableHelper.java:266)
     at com.tangosol.util.ExternalizableHelper.fromBinary(ExternalizableHelper.java:230)
     at com.b.p.coherence.cacheStore.DatabaseCacheStore.store(DatabaseCacheStore.java:139)
     at com.tangosol.net.cache.ReadWriteBackingMap$BinaryEntryStoreWrapper.storeInternal(ReadWriteBackingMap.java:6035)
     at com.tangosol.net.cache.ReadWriteBackingMap$StoreWrapper.store(ReadWriteBackingMap.java:4814)
     at com.tangosol.net.cache.ReadWriteBackingMap.putInternal(ReadWriteBackingMap.java:1236)
     at com.tangosol.net.cache.ReadWriteBackingMap.put(ReadWriteBackingMap.java:745)
thanks

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));

Shifting binary values

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