VB.NET School Assignment? Project Due Tomorrow? Chat LIVE With A Programming Expert!

Dream.In.Code > Programming Help > VB.NET

Welcome to Dream.In.Code
	Become a VB.NET Expert! Join 306,807 VB.NET Programmers for FREE! Get instant access to thousands of VB.NET experts, tutorials, code snippets, and more! There are 1,659 people online right now. Registration is fast and FREE... Join Now! Chat LIVE With a VB.NET Expert

Multiple applications updating single database

Multiple applications updating single database, Same app, different PCs, database on server

Bort	19 Feb, 2009 - 07:02 AM Post #1
VBort.NET Joined: 18 Sep, 2006 Posts: 1,391 Thanked: 27 times Dream Kudos: 350 My Contributions	I have an application which takes input on a local machine and sends it to a database stored on a server. I'd like to be able to deploy my application over a number of computers (all on the same network), all of them updating the same database (on the network server). First of all, will this be possible without putting together a completely new application to handle all connections to the database and sorting the entries? If not, how would I go about doing this? I have a sneaky suspicion that the concurrency errors from this one are not going to be friendly... I'm not after all the code or anything, just a point in the right direction Thanks, Bort
	This Post Was Helpful!

Register for Free to Make These Ads Go Away!

modi123_1	RE: Multiple Applications Updating Single Database 19 Feb, 2009 - 08:35 AM Post #2
Suiter #2 Joined: 12 Jun, 2008 Posts: 1,835 Thanked: 80 times Dream Kudos: 150 My Contributions	Yes it is entirely possible. If you have the db server set up then your program needs the right connection string to the server and bam-o. Our apps usually deal with 2k-5k users a day.
	This Post Was Helpful!

Bort	RE: Multiple Applications Updating Single Database 19 Feb, 2009 - 08:50 AM Post #3
VBort.NET Joined: 18 Sep, 2006 Posts: 1,391 Thanked: 27 times Dream Kudos: 350 My Contributions	I have a database file stored in shared folders on a server. My program has the correct connection string to connect to it and update it, but won't simply putting my application on multiple PCs will cause concurrency violations?
	This Post Was Helpful!

baavgai	RE: Multiple Applications Updating Single Database 19 Feb, 2009 - 09:58 AM Post #4
Dreaming Coder Joined: 16 Oct, 2007 Posts: 4,347 Thanked: 410 times Dream Kudos: 550 Expert In: C, C++, Java, C#, ASP.NET, PHP, Perl, Python, Oracle, SQL Server, MySql, HTML, JavaScript, Lua, Cheese My Contributions	QUOTE(Bort @ 19 Feb, 2009 - 10:50 AM) I have a database file stored in shared folders on a server.... Sorry, this does not sound like a database... If the "file" is Access it's time to reconsider your options. If the file is something like one of those MDE thingies Visual Studio embeds, you're probably fine a web app is a single point of entry. If it's just a file you open up on a share then you could be in trouble.
	This Post Was Helpful!

modi123_1	RE: Multiple Applications Updating Single Database 19 Feb, 2009 - 11:01 AM Post #5
Suiter #2 Joined: 12 Jun, 2008 Posts: 1,835 Thanked: 80 times Dream Kudos: 150 My Contributions	Also I am going to throw this out there - MS SQL express is free and supports a large database. Baavgai is right.. if this "file" is Access you will have to punt it and get a real DB. MSSQL.. MYSQL... postgre.. something else. Concurrency issues in what way? as in having twenty people accessing the same piece of data? If that's the case just build a "locking" system that locks that chunk of data from any other user access.
	This Post Was Helpful!

Bort	RE: Multiple Applications Updating Single Database 20 Feb, 2009 - 01:39 AM Post #6
VBort.NET Joined: 18 Sep, 2006 Posts: 1,391 Thanked: 27 times Dream Kudos: 350 My Contributions	It is an Access database, although I have no problems with changing that to a SQL database instead. Only reason I used Access is because I know how to use Access and have never created a SQL database before. Concurrency errors as in having 20 people trying to update the same database at the same time, not accessing data.
	This Post Was Helpful!

Bort	RE: Multiple Applications Updating Single Database 24 Feb, 2009 - 06:20 AM Post #7
VBort.NET Joined: 18 Sep, 2006 Posts: 1,391 Thanked: 27 times Dream Kudos: 350 My Contributions	Can anyone provide me with a download link for SQL Server 2008 Express please? The one from the Microsoft VS 2008 website is corrupt. Edit: Never mind. I found a different Microsoft site where the download seems to be working. This post has been edited by Bort: 24 Feb, 2009 - 06:27 AM
	This Post Was Helpful!

DeCompile	RE: Multiple Applications Updating Single Database 24 Feb, 2009 - 05:21 PM Post #8
D.I.C Head Joined: 20 Jul, 2008 Posts: 249 Thanked: 12 times My Contributions	Now this is entirely person opinion and determined by the users of your database. Personally, we use web apps. Only because there has never been a standard hardware configuration across the multitude of departments that use these applications. With web apps, there is no installation, no dependancy issues. It's just open a web browser and away you go. Works the same for Apple, Linux, FreeBSD (some users never let go) and even Windoze. That's my 2c.
	This Post Was Helpful!

Fast Reply

Reply to this topic

Start new topic

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

Time is now: 11/20/09 09:47PM

Invision Power Board v2.1.7 © 2009 IPS, Inc.

Licensed to: MediaGroup1

Advertising | Terms of Use | Privacy Policy | About Us | Site Map

Advertise on this site through Lake Quincy Media

Forum Index: Programming Help | C and C++ | VB6 | Java | VB.NET | C# | ASP.NET | PHP | ColdFusion | Perl and Python | Ruby | Databases | Other Languages | Game Programming | Mobile Development | Software Development | Computer Science | Industry News | Programming Tutorials | C++ Tutorials | Visual Basic Tutorials | Java Tutorials | VB.NET Tutorials | C# Tutorials | Linux Tutorials | PHP Tutorials | ColdFusion Tutorials | Windows Tutorials | HTML/JavaScript Tutorials | CSS Tutorials | Flash Tutorials | Web Promotion Tutorials | Graphic Design & Photoshop Tutorials | Software Development Tutorials | Database Tutorials | Other Language Tutorials | ASP.NET Tutorials | Game Programming Tutorials | WPF & Silverlight Tutorials |

Copyright 2001-2008 MediaGroup1 LLC, All Rights Reserved
A MediaGroup1 LLC Production - Version 6.0.2.1.36
Server: secure2

Search^Updated!w00t

Over 509,000 Pages! Advanced Forum Search

Live VB.NET Help!

Be Social

VB.NET Tutorials

Reference Sheets

VB.NET Snippets

DIC Chatroom

Join our IRC Chat

Bye Bye Ads

Monthly Drawing

Top Contributors

Top 10 Kudos This Month