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by: mACKnIFE |
last post by:
Hi list!
I've just finished reading the nice book: "Data Modeling and
Relational Database Design Volume 1 - Student Guide", by Jan
Speelpenning, Patrice Daux and Jeff Gallus, published by Oracle
University. I really like the way they do their drawings for their
conceptual models (see below for the features of Oracle's book's
conceptual models). In fact, it's a notation that could apply to any
RDBMS and that'S what I'd like to do. But I...
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by: Redd |
last post by:
The following is a technical report on a data modeling project
that was recently assigned to me by my professor. I post it
so that anyone else who is studying databases and data modeling
can have an example to go by with their study of databases.
I was assinged to come up with a data model, but I choose the
Autoparts sales and inventory management schema.
It you would like the SQL code to generate the schema or if
you would like the ERWin...
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by: Balaji |
last post by:
Hi
I have three database tables - Location, Part and Detail.
Location and Part have a one-many relationship to detail.
Location and Part need to be inserted into the database
before inserting a detail record.
I am having problems designing the business entity objects
for these tables becoase we have one composite that
Depends on Two Parent Objects.
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by: Craig |
last post by:
Does anyone have any advice on which type to use for a business entity in the following situation..
If I want to populate a form with Employee details (windows or web) , I will get a business entity from the Employees class and use that business entity to fill all the textboxes etc.
Using VB6, I would use a recordset as the business entity like so..
My Employees class would have a method like this..
Public Function GetEmployee...
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by: Simon Harvey |
last post by:
Hello Chaps,
Me and a collegue have been talking about where the best place to put
business logic is.
I think that the best place is where Microsoft suggest - in a seperate
business logic layer. The alternative is to have all the logic in with the
business entity objects, thus eliminating the business logic layer.
The reason that I prefer the seperate layer is because I think its more
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by: apoc69 |
last post by:
hi people,
i got stucked in my project and i just dont know how to continue.
it's about puting business entities into the UI (web).
first some simple example code how an entity looks like in my project:
public class Person : Entity
{
string firstName;
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by: Nate |
last post by:
Modeling of Lookup Values and ORM
I know this is not the correct forum for object design patterns, but I
haven't found any design related newsgroups.
Scenario:
Customers (table)
-----------------
CustomerID
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by: Penelope Dramas |
last post by:
Hello,
I'm in a front of very serious .net redesign/rewrite of an old VB6
application.
I had been asked to make it .NET 2.0 and would like to ask couple of
questions regarding data access as this application is heavily data-centric
around MSDE database.
Would it be better to use custom business objects or extend
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by: =?Utf-8?B?SmVhbi1GcmFuY29pcyBCcmV0b24=?= |
last post by:
"siddharthkhare@hotmail.com" wrote:
The context is important in this kind of design concern : I assume there's a
lot of user and that application will evolve to add richer functionality.
My first concern would be to separate the business logic code from data
contener : the new code would look like that :
LineItemBusinessComponent.Delete(LineItemBusinessEntity)
Exposing CRUD component isn't the best thing to do because your presentation...
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by: Thomas R. Hummel |
last post by:
I'm going to try to describe this situation as best as I can, but if
anything is unclear please let me know. Some of this database was
already in place before I arrived on the scene, and I don't really
have the buyin to change it.
There is a table of certificates that a person can hold. A person may
hold certificates of various types. I need to further group a person's
certificates together so that (for example) renewal dates can be...
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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: 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: 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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