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by: Terri |
last post by:
I have a table called Transactions with 3 fields: ID, Date, and Amount. Each
ID can have multiple transactions in one particular year. An ID might not
have had any transactions in recent years.
For each ID I would like to sum all the transactions for the most recent
year in which one or more transactions have occurred.
Thanks for any help and for all previous help.
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by: phaddock4 |
last post by:
Being fairly inexperienced at Access 2000, i've been reading many posts
here for the last several days, and testing myself to find the best
approach to do the following in A2K:
SET UP:
I have created a MainTable (and related form), which has an associated
SubForm (popup) along with its underlying, separate Table.
The tables' relationship is one to many respectively. The primary key
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by: Mike P |
last post by:
I've been using C# transactions for a while and had no problems with
them. Using try catch blocks I can trap basically all possible errors
and rollback all necessary data.
Over the last few days I've been trying to convert some of this code to
SQL Server stored procedures, but it seems to lack many of the benefits
of C# transactions - a lot of the errors don't seem to be trapped by the
SQL error trapping (e.g. if I do an update on a row...
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by: Lada 'Ray' Lostak |
last post by:
Hello ppl,
Imagine some online system, based on PgSql. There are 'many' parts which
depends on each other. I will give small example, but instead of simple
table imagine changing tenths various tables (editing). So, 'change table A'
can be work for hours.
There are tables tableA and tableB. Changes are made by thin client. If
you change tableA, you have to also change tableB to 'finish' operation.
Between starting changing tableA...
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by: jason.m.ho |
last post by:
Hello!
I am trying to build an ajax chat system. Currently I have it so that
when you chat, you upload your message to the database, and each client
is polling that database to see if he/she has any new messages. The
problem with this is that I poll at 2 second intervals (since
connection is not active), and so its not as responsive as I'd like it
to be.
My question is, is an active HTTP connection possible? How did Meebo or
Gmail...
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by: RAM |
last post by:
Hello,
I am learning .NET 2.0 (ASP.NET, ADO.NET). I would like to ask experienced
programmers when to use System.Transactions. One programmer told me that he
never used System.Transactions, he only uses database transaction
(SqlTransaction) and recommended me this method but he did not explained
why. I have read a few pages about both transaction types in MSDN but I have
little experience I don't know what are practical usages of...
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by: Sridhar |
last post by:
Hi,
I am trying to implement sql transactions. But I am not knowing how to
do that. I created a data access layer which contains methods to
select/insert/update tables in a database. I have also created a business
logic layer to retrieve/update the data from the data access layer. All of
this is working fine if there are no transactions involved. If I need to use
transactions, I am not knowing how to do that. Lets say I have a webform...
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by: Allan Ebdrup |
last post by:
I've implemented transactions in my dotNet 2.0 project using
System.Transactions and TransactionScope.
---
TransactionOptions options = new TransactionOptions();
options.IsolationLevel = System.Transactions.IsolationLevel.Serializable;
options.Timeout = new TimeSpan(0, 5, 0);
using (TransactionScope transactionScope = new
TransactionScope(TransactionScopeOption.Required, options))
{
DoWork();
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by: Ken |
last post by:
I used the classes (SqlCommand, SqlConnection) of part of System.Data
namespace.
I got an error which mentioned "Could not load file or assembly assembly
'System.Transactions, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=B77A5C561934E089 or noe of its dependencies.
What should I do to fix this issue?
Strange enough, this application works fine other boxes except one box
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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: 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...
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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: 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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