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by: Philip Yale |
last post by:
I'm very puzzled by the choice of NC index being made by the optimizer
in this example. I don't actually think it should use an NC index at
all.
I have:
Table: CustomerStatus_T
Single data page
19 records
Clustered Index on CustomerStatusID:
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by: Jon Combe |
last post by:
I have created the following test SQL code to illustrate a real
problem I have with some SQL code.
CREATE TABLE JCTable ( CustomerName varchar(50) )
ALTER TABLE JCTable ADD CustomerNo int
INSERT INTO JCTable ( CustomerName , CustomerNo ) VALUES ( 'Jon Combe'
, 1 )
INSERT INTO JCTable ( CustomerName , CustomerNo ) VALUES ( 'Bill
Gates' , 1 )
UPDATE JCTable SET CustomerNo = 2 WHERE CustomerName = 'Jon Combe'
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by: Samuel Caparros |
last post by:
Hi group,
I have an app where I use a class defined by myself. I've been using it
normally until a few days ago. Every time I run a simple assignment...
Dim LocalObjectOfMyClass as New MyClass
LocalObjectOfMyClass = GlobalObjectOfMyClass
....all of a sudden, I'm getting an strange behaviour where, after this
point, every change I make to any property or variable in the local
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by: Chris Mantoulidis |
last post by:
I see some really weird output from this program (compiled with GCC
3.3.2 under Linux).
#include <iostream>
using namespace std;
int main() {
char *s;
s = "test1";
cout << "s = " << s << " and &s = " << &s << "\n";
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by: Pankaj |
last post by:
Hi All,
I use a Hashtable in my program to keep unique items...at one instance I
need to repopulate this hashtable through a loop.
when starting repopulation hashtable.count() returns ZERO hence first item
gets added successfully but as soon as the control reaches top of foreach
loop
somehow a second item which indeed existed before repoulation started
appears in hashtable and count returns two hence this second item can not
add...
|
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by: Daniel Yelland |
last post by:
Hi,
I have developed a number of code libraries in Win32 DLLs and have written a
number of test suite executables that implicitly link to these libraries in
order to test them. In one of my test applications, which runs fine in Debug
mode, it is crashing in the destructor of a local object on the stack when
it is built in release mode.
An example of the C++ that causes the problem is as follows (apologies for
the contrived example): -
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by: Charles Law |
last post by:
For some reason, when I click the X to close my MDI parent form, the action
appears to be re-directed to one of the MDI child forms, and the parent
remains open. I am then unable to close the application.
What should happen, is that the main MDI form should close, taking the child
forms with it. There is code to loop through the child forms, remove the
controls on each of them, and then close the form, but this code should
execute only...
|
by: Petr Jakes |
last post by:
Hello,
I am trying to study/understand OOP principles using Python. I have
found following code http://tinyurl.com/a4zkn about FSM (finite state
machine) on this list, which looks quite useful for my purposes. As
this code was posted long time ago (November 1998) I would like to ask
if the principles used in this code are still valid in the "modern"
Python and if/how it can be improved (revrited) using futures of
current version of...
|
by: ian |
last post by:
Hi, I've got the weirdest garbage collection problem - I'd appreciate any
advice you've got.
1. A class 'X' in a system I'm working on contains a reference to an
XmlDocument, populated via LoadXML.
2. Objects of type X are reused alot so different XML is loaded numerous
times.
3. If I keep this reference, the system looses more and more memory until it
|
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...
|
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...
|
| |
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,...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
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?
|
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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