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by: Rainer Collet |
last post by:
hi!
i tested several php database abstraction layers (db, mdb(2), creole,
adodb, etc), but i always missed one really important feature:
i need a method for a limited select which gives me the resultset and
the total number of rows the select would have returned without the
limit.
nativly this is very easy
SELECT SQL_CALC_FOUND ROWS * FROM table LIMIT 0,10 in mysql for
example.
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by: Brett |
last post by:
If I want to easily swap the database I'm using, what is the best method for
developing that tier in my application?
I'll have basically a 4 tier app:
1. presentation
2. business logic
3. data layer containing standard SQL compliant queries
4. any database
I'm looking for the most efficient way to design tier 3. I can't use stored
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by: Alfred Taylor |
last post by:
I'm testing the waters of n-tier development and I ran into a scenario that
I'm not sure what the best solution would be. I have a Company object which
contains a collection of contacts retrieved from a database.
In the presentation layer, the user will be able to add/delete/modify this
collection in which case it needs to be synced with the database.
The question is basically how best to do this? Aside from overriding the
add/remove...
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by: Alan |
last post by:
I am coming from other programming tools field, and new to VB .NET. Just
wondering what is the common approaching in database programming in VB .NET?
1) Are you guru always using the data aware controls to bound the database ?
OR
2) Create separate data object/layer to access backend database and link to
the front end ?
ie.
front <--> business <--> database <--> backend
end object layer database
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by: ImOk |
last post by:
I need to program generically. I am familiar with the ODBC layer but
never used PDO or DB.
Does anyone have any experience with these database layers?
Thanks
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by: Marcos de Lima Carlos |
last post by:
Hi all,
I have a VB aplicantion in many places. I need to manage databases over
files on pen drive. What's the database i using to manage this program?
My conditions is this: i have most computer but it's not conected to
internet and i have to actualize this database in a server-computer.
tks a lot,
Marcos
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by: Jarsinio |
last post by:
I have some doubts about how managed exception in a VB.net aplication.
In my aplicattion I have 3 clases:
One clase is the UI ( Windows Forms). This class call a second clase
who perform an action ( for example add a item in the database). The
last class is the one who conect to the DB ( ms access)
How I should manage an exception ?
* What I must do when an exception occurs when the class number 3 wants
to make a DB coneection an...
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by: morleyc |
last post by:
Hi, until recently i was quite happy to add data sources from mssql
database in visual studio and drag the datasets directly onto the form
this creating a directly editable form which worked well.
However i have recently started a project which will require
synchronization to a remote database. Also the underlying database
provider may change at a later date. From what i have read it seems
that a layered approach is necessary, or at...
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by: jehugaleahsa |
last post by:
On Jun 13, 3:09 pm, "Bob Powell " <b...@spamkillerbobpowell.net>
wrote:
I apologize for the size. I should have probably put this on a blog or
something.
I'm not interested in tools. I interested in concepts / better ways of
handling day-to-day design decisions.
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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:
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: 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?
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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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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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