473,748 Members | 2,659 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Convert data from char type to byte tape

1 New Member
I have a table with not nullable colunm from type char. I wont to convet column in type byte?

How can I do it?


Thanks,
Jul 26 '07 #1
1 2672
michaelb
534 Recognized Expert Contributor
These two pages will tell you all about it:
Modifying tables
Alter Table
Jul 30 '07 #2

Sign in to post your reply or Sign up for a free account.

Similar topics

16
16425
by: Khuong Dinh Pham | last post by:
I have the contents of an image of type std::string. How can I make a CxImage object with this type. The parameters to CxImage is: CxImage(byte* data, DWORD size) Thx in advance
4
3862
by: Thomas Paul Diffenbach | last post by:
Can anyone point me to an open source library of /statically allocated/ data structures? I'm writing some code that would benefit from trees, preferably self balancing, but on an embedded system that doesn't offer dynamic memory allocation (to be clear: no malloc, no realloc), and with rather tight memory constraints. Writing my own malloc to do dynamic allocation from some static pool isn't really an option, for various reasons, not...
17
14884
by: cpptutor2000 | last post by:
Could some C guru help me please? A byte is an unsigned char in C. How do I convert from a C string to a corresponding byte array. Any help would be greatly appreciated.
11
10223
by: QQ | last post by:
I know a char is 2 bytes, the conversion is like byte byte_array = new byte; //Allocate double mem as that of char then for each char do byte = (byte) char & 0xff byte = (byte)( char >> 8 & 0xff) one unsigned char is 1 byte, could anyone tell me the conversion method?
16
10121
by: Dave | last post by:
Hi all, I have a 4 byte char array with the binary data for two 16-bit signed integers in it like this: Index 3 2 1 0 Data Bh Bl Ah Al Where Bh is the high byte of signed 16-bit integer B and so on.
15
34602
by: Kueishiong Tu | last post by:
How do I convert a Byte array (unsigned char managed) to a char array(unmanaged) with wide character taken into account?
65
21458
by: kyle.tk | last post by:
I am trying to write a function to convert an ipv4 address that is held in the string char *ip to its long value equivalent. Here is what I have right now, but I can't seem to get it to work. #include <string.h> #include <stdio.h> /* Convert an ipv4 address to long integer */ /* "192.168.1.1" --> 3232235777 */ unsigned long iptol(char *ip){
12
13550
by: Peter | last post by:
Trying to convert string to byte array. the following code returns byte array of {107, 62, 194, 139, 64} how can I convert this string to a byte array of {107, 62, 139, 65} System.Text.UTF8Encoding str = new System.Text.UTF8Encoding(); string s = new string((char)107, 1); s += new string((char)62, 1);
0
10777
Debadatta Mishra
by: Debadatta Mishra | last post by:
Introduction In this article I will provide you an approach to manipulate an image file. This article gives you an insight into some tricks in java so that you can conceal sensitive information inside an image, hide your complete image as text ,search for a particular image inside a directory, minimize the size of the image. However this is not a new concept, there is a concept called Steganography which enables to conceal your secret...
0
8832
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9562
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9386
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
0
9254
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
8255
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
6078
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4608
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
2
2791
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2217
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.