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by: |
last post by:
If I need to check if a certain value does exist in a field, and return
either "yes" or "not" which query would be the most effestive?
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by: lawrence |
last post by:
I'm learning Javascript. I downloaded a script for study. Please tell
me how the variable "loop" can have scope in the first function when
it is altered in the second function? It is not defined in global
space, therefore it is not a global variable, yes? Even if it was
global, how would it get from one function to another? In PHP
variables are copied by value. Are they copied by reference in
Javascript?
<SCRIPT LANGUAGE="JavaScript">
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by: Adam Clauss |
last post by:
Basically, my question is in terms of performance and the garbage collector -
Is there any difference between
a) letting a variable simply go out of scope
b) explicity setting it to null once I am done with it
I have no particular reason to think that b) would gain me anything, but I thought maybe it would be a sure sign to the garbage
collector that Yes, you can go ahead and remove the object.
Thanks!
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by: Bob Day |
last post by:
VS 2003
The documentation says " Nothing keyword represents the default value of any
data type" this is simply not true and causing a lot of problems.
1) Consider an SQL table of 3 columns:
Column1 bit no nulls
Column2 string no nulls
Column3 DateTime no nulls
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by: Richard Gregory |
last post by:
Hi,
I have the wsdl below, for an Axis web service, and when I select Add Web
Refernce in Visual Studio the proxy is missing a class representing the
returnedElementsType (see reference.cs below the wsdl). This complex type is
a collection of another complex type(elementType), and the Reference.cs has
an array of these rather than the single returnedElementsType. If If I want
to be able to obtain these elements from the SOAP response I...
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by: Tony Sinclair |
last post by:
I'm just learning C#. I'm writing a program (using Visual C# 2005 on
WinXP) to combine several files into one (HKSplit is a popular
freeware program that does this, but it requires all input and output
to be within one directory, and I want to be able to combine files
from different directories into another directory of my choice).
My program seems to work fine, but I'm wondering about this loop:
for (int i = 0; i < numFiles; i++)
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by: avasilev |
last post by:
Hi all,
my question is:
if i allocate some memory with malloc() and later free it (using
free()), is there a possibility that a consequent malloc() will
allocate memort at the same starting address and will return the same
pointer as the previous malloc(). I would like to have confirmation on
whether this is practically a concern when pointers are used to
uniquely identify data structure instances - like in this example:
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by: Angus |
last post by:
I have a socket class CTestClientSocket which I am using to simulate
load testing.
I create multiple instances of the client like this:
for (int i = 0; i < 5; i++)
{
CTestClientSocket* pTemp = new CTestClientSocket(this, ip, port);
pTemp->Connect();
m_collClients.push_back(pTemp);
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by: dprjessie |
last post by:
Hello,
I am a Web programmer and I'm working on my first desktop application as a favor for a friend. I'm sure I have a stupid error here, but there is no error being thrown so I can't figure out what is wrong. I have code that reads an excel file and fills a datagridview and it works just fine. It is also supposed to fill a database though and that is not working. The executeNonQuery command is returning a 1 which as I understand, means it has...
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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: 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,...
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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: 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: 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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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