Programming :: DB2 VARCHAR Type Usage With NULL Character?

Mar 7, 2011

I have a vector of bytes that I need to store in a DB2 database and was wanting to do it with a column declared as VARCHAR () FOR BIT DATA. I can do this with no problem except when a byte representing the NULL character occurs in the vector. Anytime this occurs, the rest of the bytes are truncated. I know this is the proper behavior for if this were a string, but I was under the impression that if the column is declared as I previously mentioned, that this would support any variable length binary data including the NULL character.

I've found repeated references to people dealing with DB2 tables where the data in VARCHAR columns contained leading and embedded NULLS, so I know this is possible. Can anyone provide me with the proper INSERT statement in order to get this to work? This is the current BindParameters call I'm making for the VARCHAR () FOR BIT DATA column that's truncating after the NULL character occurs.

Code:

SQLBindParameter(handleStmt, 3, SQL_PARAM_INPUT, SQL_C_CHAR,
SQL_VARCHAR, (SQLUINTEGER)(30000), 0, data2, 30000,
&sqlNts);

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Programming :: MySQL Won't Let Me Create VARCHAR Of Size 65535

Sep 24, 2010

Can anyone tell me what's going on?(this is the latest version of WINDOZE MySQL (sorry!) downloaded from the web.)

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Aug 5, 2010

I have a server running Red Hat Enterprise Linux ES (2.6.9.55.ELsmp). When it starts up I get the following error: Uncompressing Linux... Ok, booting the kernel. Red Hat nash version 4.2.1.10 starting WARNING: can't access (null) exec of init ((null)) failed!!!: 14 unmount /initrd/dev failed: 2 Kernel panic - not syncing: Attempted to kill init!

After that I got no response from the OS. I have the installation CD, so I tried to start the rescue mode, while going through the steps I received an error stating that mounting to /mnt/sysimage failed and that if I want to I can access a shell. I really don't know what to do from here

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Dec 17, 2010

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Dec 9, 2010

I'm a UK based user and using a standard UK keyboard (Coleman based layout I think) although I have a backslash (to the left of the "Z", I can't type the character in any application. This is very frustrating when typing FQDNs amongst other things. How can I enable the backslash key for use with UK keyboard layouts. BTW I have tried all of the UK keyboards suggested in the keyboard layout dialogue

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Ubuntu :: Connect Remotely With VNC But If Type Any Character It Closes Out Window

Sep 20, 2010

I am having an issue with Ubuntu 10.10 and VNCServer. I can connect to my Ubuntu box remotely with VNC, but if I type any character anywhere, it closes out the window I was typing in. I dont seem to have a problem clicking and opening windows and applications, I just cant type anything into them without the window closing. Has anyone seen this behavior and know what the fix is?

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General :: Use The Man / Info / Apropos Pages - Character Instructed The Shell To Interpret A Special Character As An Ordinary Character?

Mar 27, 2010

1.What character instructd the shell to interpret a special character as an ordinary character?

2.What directory contains some of the utilities available on the system in the form of binary files?

3. What command is used to search the location of a utility?

4. What command is used to instruct the editor to write the file and quit the editor?

5. What key quits the more utility and displays the shell prompt?

6. What command starts a child shell as the super user, taking on root's identity and environment?

7. Which wildcard characters can be used for searching all the files in the system that start with "A"?

8. The user name or login name of the super user is????

[Code]....

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Programming :: Null Pointer In Bash?

May 19, 2011

#!/bin/bash
sed -n 8p file.txt

returns the 8th line to the StdOut.

If I assign the value to the variable line = $(sed -n 8p file.txt)

and now print it out with echo

echo $line

the line would be printed.

But what if the file has only 4 lines. What value would be assigned to the variable line?

I want to know that because I want to only print it if the value is "something", that is not null.

In Java for example I would do it like this...
String line = "";
line = reader.readLine(); // or anything else..
if(line!=null){
System.out.println(line);
}

How would I check if the value is not "null"(I don't know if bash knows null)

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Programming :: Error - Array Type Has Incomplete Element Type

Jan 26, 2010

I'm trying to compile a program and it gives me the following:

I checked cmath-util.h:46 and cmath-util.h:48:

I'm not a C person, and the author is unavailable so far.

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So I wanted to use R's graphics to visualize information, but when I typed

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I have the core Jessie packages for R, so I don't think that is the issue.

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Programming :: Query That Returns Columns Where Some Of The Values Are NULL

Dec 23, 2010

If I have a Query that returns columns where some of the values are NULL, is it possible to tell SQL to return all the NULL values as empty strings instead of the NULL datatype?

If the solution is vendor specific I am (unfortunately) using a Microsoft 2008 SQL server.

Example:

Code:
Select * from imaginary_table where id = 1
Might return:
Code:
Id: 1
Name:xyz

[Code].....

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Jan 12, 2011

I need to read a binary file using my C++ application. That binary file may contain arbitary characters and it also contains 0 at some places. I need to read the file without considering null terminating character. (i.e. considering 0 as a normal byte and not as the end of the string)Can some one suggest me a method to read the buffer while ignoring the null terminated character.

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Programming :: Bash Script: Catch File Not Found Error And Send To /dev/null

Apr 21, 2010

I have the following working script. It checks the directory for txt files, if files are there, it copies to another directory or gives error. I would like to exclude "file not found" errors and send them to /dev/null. All other errors should go to the email address as usual.

Code:

#!/bin/bash
function err
{
if [[ $? -ne 0 ]]

[Code]....

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Mar 4, 2011

I am trying to generic way to convert the string datatype to other primitive data type. To achieve, i used Template . But i getting error and couldn't resolve the issue and error reported is also clueless.

Code
====
#include <vector>
#include <iostream>
#include <string>

[Code].....

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Jan 23, 2010

Ive seen some fixes for this but they all seem to be specific to the particular user's sources.list . . . ..

Code:

Here is Line 54

Code:

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Jun 27, 2010

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Nov 3, 2010

I was reading Kernighan Ritchie book chapter 4 which deals with character pointers.I am not able to understand following different type of declarations

Code:
char aname[][15] = { "Illegal month", "Jan", "Feb", "Mar" };
char amessage[] = "now is the time";

[code]...

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Oct 23, 2010

i am compiling the following program in linux. it's in c language. after the compilation with gcc when i run the executable file. it asks for input. but when i enter a name. i prints "Segmentation fault" and then terminate the program. can you please help me.

#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>

[code]....

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Feb 24, 2010

which is the simplest way to have first and last character cropped out from a string? Something simpler than

Code:

echo $STRING | cut -b 2- | rev | cut -b 2- | rev

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Mar 30, 2010

I have the following file:

Code:

1 line
...
49 test test=AA:AA:AA:AA:AA=0

I need to substitute on the line number 49, all text until =. I have used the following, but with no actual result.

sed -re '49s/^.+=//' file
and
sed -e '49s/.*[=]//' file

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May 11, 2011

I have a file with one line. I want to check whether the first character is TAB or space, how can i do this.? using "cut" wont as it "bypasses the tab and space characters"

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Apr 22, 2011

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egrep '^s' file | nawk '{virtual=substr($0,9,1); if ($virtual=="v") {printf "%s", $1}}'
nawk: illegal field $(e)
input record number 1
source line number 1

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Aug 2, 2010

I believe I have unwanted ' characters left in a 9 element character array that are causing subsequent operations with it to fail. I see wildly differing views on the web on the proper way to flush 'em. It's clearly not as simple as it would appear at first sight. What's currently the best (or else "least deprecated") method?

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Feb 12, 2010

I am loading variables for cXtXdXsX disk names into a script, and at present I have only accounted for there being 3 characters from c to t. I need to change it to a variable recognition so that it can count any number of charcters such as c1t , c10t , or c100t.

I can then take that information and use it with the following string to strip off the lead characters so as to make the 3 in $substr either a variable or redirect to multiple occurrences of raw based on the count returned.

sub raw {
$substr = substr ($_, 3);
$raw1 = substr ($substr, 0, -4);
$raw = lc($raw1);
}

how to count from the c to the t inclusive so I get 3, 4, 5, etc ...

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Jan 19, 2011

how to replace last character string. For example

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how to get result abcdxyz?

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Jul 25, 2011

I have a string as below

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Want the above string to be modified as

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Programming :: MySQL Unsigned Character?

Jan 8, 2010

I am trying to create a table T having a field F which should be able to store variable-length sequences of "unsigned" characters (8bit values ranging from 0 to 255 (not including 0, including 255)).(MAX_LENGTH) is not working, as it seems to want sequences of 8bit values ranging from 0 to 127 (thus "signed" characters).Can anyone help me by pointing out if there is a type suited for my needs (or if such a type does not exist)?For those familiar to C programming and working with the MySQL client library, I should be able to (successfully) do something along the lines of:

Code:
unsigned char value[] = { 'H', 'E', 'L', 'L', 'O', -1, -128, 'W', 'O', 'R', 'L', 'D' };
unsigned char query[255];

[code]....

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Programming :: Remove The Last Character From Variable

Jun 22, 2010

i have the following:

Quote:

echo %host%|sed "$s/.$//"

this would remove the Last character of the value assigned to the %host%. for example if my value is: abcd i get abc. but i am not able to assign the output. for example when i do

Quote:

set k=`echo %host%|sed "$s/.$//"`

after doing echo %k i get no output at the command prompt...!! whereas when i just type:

Quote:

echo abcd|sed "$s/.$//"

at the command prompt i get abc. maybe some other ways to Remove the Last character...?

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Apr 7, 2011

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*/
#if defined(CONFIG_MODVERSIONS) && ! defined(MODVERSIONS)
#include <linux/modversions.h>
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