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by: Ender |
last post by:
Let's assume you are developing a database application and you have an
ID field. You setup the ID field in the database as a 1 up increment
starting at zero.
Whenever I see programs, everyone always uses the int field to
represent the userID. Should this really be a uint since the field
will never be negative, only positive? Is there a performance penalty
using the uint type?
Furthermore, let's say I am building an application...
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by: Kenneth |
last post by:
Can anyone explain me why it is neccesary to include SqlDbType to the
SqlParameter. In every example I see, it is done, but no one explaines
why.
I have for example a date I want to save into my Sql Server database
through a stored procedure-call. In the database it is defined as a
SmallDateTime. Every 3 methods in the client-code below gives the same
(and correct) result. So why is it that important?
dim param As SqlParameter
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by: Song Yun Zhao |
last post by:
Hi,
Just wondering what are the dis/advantages of using uint vs int. When
would be the best time to use it?
Personally I don't use uint that much, but I like to optimize my code
and make it as effective as possible. So I feel that using an int where
only an uint is needed is a waste.
e.g. something like (int i = 0; i < 100; i++)
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by: ±èÀçȲ |
last post by:
//this code generates the error.
uint a=1,b=2;
Console.WriteLine(a << b);
Console.WriteLine(a >> b);
What problem does "uint type" have.?
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by: Daniel Groh |
last post by:
What is the best way to access a procedure ?
MyCommand.Parameters.Add("@param1",typeof(string));
or
SqlParameter myParam = new SqlParameter();
myParam.Add("@param1",typeof(string));
What do you think ?
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by: Jason Huang |
last post by:
Hi,
I want to use the Sqlparameter and SqlDataAdapter to update my data,
and the data will be updated based on two TextBoxes txtCustName and
txtCustAddress.
Thanks for help.
Jason
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by: Jason Huang |
last post by:
Hi,
The SqlParameter myPM =new SqlParameter("@Address", txtAddress.Text) is
working for update,
but SqlParameter myPM =new SqlParameter
("@Address",SqlDbType.NVarChar,90,txtAddress.Text) is not working.
The Address column is DataType NVarChar 90, no problem.
Any idea?
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by: Stacey Levine |
last post by:
I have a webservice that has the below procedure. Basically a procedure to
called a stored procedure and return the results. When I try to call the
webservice from my program I get the error. Both my calling code and the
webservice code are below. Thanks for your help.
D:\Projects .NET\StoreBO\frmVoids.vb(182): Value of type '1-dimensional
array of System.Data.SqlClient.SqlParameter' cannot be converted to
'1-dimensional array of...
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by: Tim Zych |
last post by:
' Declare a new parameter object
Dim param() As SqlParameter = New SqlParameter(0) {}
' Set this to null and make it an InputOutput parameter
param(0) = New SqlParameter("@Something, DBNull.Value) ' Can also be
non-null, but sometimes is null
param(0).Direction = ParameterDirection.InputOutput
' But, before we begin, store a copy of the existing parameters into another
variable
Dim param2() As SqlParameter = New SqlParameter(0) {}...
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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: 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: 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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