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by: Sean C. |
last post by:
Helpful folks,
Most of my previous experience with DB2 was on s390 mainframe systems
and the optimizer on this platform always seemed very predictable and
consistent. Since moving to a WinNT/UDB 7.2 environment, the choices
the optimizer makes often seem flaky. But this last example really
floored me. I was hoping someone could explain why I get worse
response time when the optimizer uses two indexes, than when it uses
one. Some context:
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by: herrcho |
last post by:
What's the difference between STDIN and Keyboard buffer ?
when i get char through scanf, i type in some characters and press
enter,
then, where do the characters go ? to STDIN or Keyboard buffer ? are
they same ?
thanks ^^
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by: santa19992000 |
last post by:
can I use scanf to get input (some times user enters input sometimes
not, just hit keyboard)?.
It displays to enter IP address, if user wants to change, then he
enters, otherwise he hits keyboard, which should prompt next one, how
can I do in C program?. Thanks.
enter IP address:
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by: Johann Blake |
last post by:
Hi,
I want to capture a signal from the sound card (via microphone or line
input) using the DirectX.Sound.CaptureBuffer class. One of the
properties that can be setup prior to capturing is specifying that the
buffer is continous. This means that once the buffer is filled with
data, it wraps around and continues filling the buffer.
Where I see a potential problem has to do with the sampling speed of
the sound card against the speed of...
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by: Dales |
last post by:
I have a custom control that builds what we refer to as "Formlets"
around some content in a page. These are basically content "wrapper"
sections that are tables that have a colored header and provide an
open TD with a DIV in it for the content of this formlet. (The DIV is
for DHTML to hide and show the content)
I've created a web page showing step by step the two problems I'm
encountering. This problem is much easier to see than it...
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by: Rob T |
last post by:
I'm porting over an application that runs on an AS/400 over to asp.net. One
of the features my users like is to be able to start typing before the
screen is loaded. (this is a 5250 emulator, not IE). In some cases they
are able to pass through several screens before they even load.
For example, in an order entry screen, they could go past the 'customer
name' screen, then 'shipping info' screen, then 'billing info' screen to end
up at...
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by: rs |
last post by:
Hi guys,
I am trying to read from a USB keyboard using vb.net and HID classes. the
USB keyboard is not my primary keyboard. I have a ps2 keyboard connected and
is detected in device manager as my keyboard. the USB keyboard is detected
as HID keyboard device. the program finds the keyboard if it is attached.
and I am getting valid handles. however, everytime I use the readfile
function I am getting "object reference not set to an instant...
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by: vbguy2008 |
last post by:
Hi,
I am coding a Windows Form Application in VB.NET 2008. I would like
to clear the keyboard buffer or at least empty all outstanding key
presses queued up for my application at certain points in my program.
I looked at System.Console.Read, but that doesn't seems appropriate.
I also looked into EnableWindow Lib "user32". I ran into a problem
where I could disable the form, but was unable to enable the form.
The code is:
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by: =?Utf-8?B?anAybXNmdA==?= |
last post by:
I've got an application that takes input from a handheld scanner: Once the
incoming text meets the RegEx format and is the correct length, the command
is accepted.
The scanner that plugs in on the keyboard port.
The problem comes from the use of the default MessageBox whenever I need to
display information to the operator:
DialogResult dr =
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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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...
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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...
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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();...
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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...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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