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by: Lisa S. |
last post by:
Can someeone help! This works:
SELECT * FROM sometable
WHERE 1 IN (1, 2, 3) ;
But if I want something like this:
s_mylist VARCHAR2(20) := '1, 2, 3';
SELECT * FROM sometable
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by: Webster |
last post by:
Hello,
I have a class Shape and subclasses Circle, Rectangle etc. I also have a
function to write them to a file given a filepointer. However, I store the
colour info in the Shape class. My question is, is it possible to create a
WriteColour function in the Shape class, but when I call the sub class
writes (i.e. Circle.Write(...)), it will call the Shape's WriteColour
function??
Or is there a way to refer to the base class in a...
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by: Carlo Capelli |
last post by:
I found a change in the following code, that behaved
correctly in VC++ 6.
#include <strstream>
using namespace std;
void main()
{
char x;
ostrstream(x, 100) << "pippo" << "pluto" << ends;
// here x contains "004400C8pluto"
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by: Steve Richter |
last post by:
here is an error I get when I open my class library project:
"The class ResultsTable can be designed, but is not the first class in
the file. Visual Studio requires that designers use the first class in
the file. Move the class code so that it is the first class in the
file and try loading the designer again."
What does that mean, "the class xxx can be designed"?
thanks,
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by: fourfires.d |
last post by:
Dear All,
I am new to c++ and when write below code that try to call copy
constructor
in "=" operator overloading, it can not compile. Can anyone point out
for
me the reason? thanks !!
class AA
{
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by: Emanuele Aina |
last post by:
I have some code which does a lot of "in" on lists containing objects
with no __eq__ defined.
It all goes fast until I add the __lt__() method: then I have a
slowdown comparable to the one I get using the overridden __eq__, while
the __lt__ method is never called.
Someone can explain me why?
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by: eric |
last post by:
hello
i'm confused by an example in the book "Effective C++ Third Edition"
and would be grateful for some help. here's the code:
class Person {
public:
Person();
virtual ~Person(); // see item 7 for why this is virtual
...
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by: pradeep kaltari |
last post by:
Hello friends,
I have a doubt in the working of IN operator. I have a schema by name 'test_schema'. If you look at the following query the expected output is "1", but nothing is displayed.
SELECT 1
FROM TABLE1
WHERE UPPER( 'test_schema' )
IN
(
SELECT UPPER(SCHEMA_NAME)
FROM INFORMATION_SCHEMA.SCHEMATA
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by: dhtmlkitchen |
last post by:
I'm trying to learn something about JScript engine.
I have the following example:
<script>(function() {
poop = "brown";
myFunction = function myFunction() {}
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by: tinnews |
last post by:
Is there any way in python to say
if string1 in string2:
<do something>
ignoring the case of string1 and string2?
I know I could use:-
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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: 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: 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...
|
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: 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: 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...
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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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