Using A Windows Application To Connect To An Online Access DB.
Aug 25, 2007
Hi all,
I'm working on a project where I have to create a password protected form for teachers to submit reports about students.
Originally I was going to use asp.net to create the form, but unfortunately the server I'm working with will not be granted asp functionality in the allotted timeframe.
To solve this issue I have another idea. So I will ask a few questions to help with research before I begin coding.
Is it possible to create a windows application that can connect to an access database hosted online? The windows app will need to be be able to update, insert, and select information from the database.
There is only going to be about 30-40 people using this windows application once or twice a week.
Thus I envision taking a password protected access database and dropping it onto a server.
The windows application will have the online location of the database embeded into the code. (connection string)
From there on out coding for the windows application should be the exact same as if the database was hosted locally on the computer, correct?
Also,
1. What is a good way to check and make sure the computer is connected to the internet before my application tries to access the database?
2. Are there any drastic security issues with this process that I should think about. The database will only be password proected, and the windows application will take a username/password from the user and check it against a table before they are able to submit info to the database.
I just need to be pointed in the right direction for this project.
Thanks.
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Mar 13, 2008
I have to search the keyword from windows application using dtSearch. when user enter the list of keywords in UI, i have to connect to dtSearch tool and based on the output return, the matched keyword should be added to database table.
Now, i have problem in connecting this tool from my application.
Thanks in advance.
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Apr 10, 2008
Hi,
Any one tell me the code to connect to .sdf file in c# windows application?And tell the requirments to conncet.My sdf file path is this
C:\Documents and Settings\koti\My Documents\Example.sdf
I write this code.It is not working
string str = "Provider=Microsoft.SQLSERVER.MOBILE.OLEDB.3.0;Data Source=C:\Documents and Settings\koti\My Documents\Example.sdf;SSCE:Encrypt Database=True";
SqlCeConnection cn = new SqlCeConnection(str);
cn.Open();
Ant one help me Plz...
Regards,
venkat.
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Feb 1, 2008
I have problem connecting to a SQL 2000 server that is hosted on a Windows 2003 server. My application uses classic ASP with VB6 components. VB6 components connect to SQL server and return data to ASP application. Everything was working fine when the application and SQL server was hosted on NT machine. Recently we have shifted to Windows 2003 server. Since then we could not establish connection to SQL2000.
I'm using UDL as connection string.
IIS and SQL2000 hosted on the same machine with Windows 2003 OS.
This seems to be a security issue. Earlier I faced this issue for a .net application which I resloved adding a domain account to both SQL server and IIS directory security.
Request your input to solve this problem.
Sunandajit Ray
Infrasoft Technologies Limited
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Jan 10, 2007
I have a windows based software application that connects remotely to a sql server 2005 and calls stored procedures. There is someone that I work with that is cautioning the company strongly that this is a bad thing to do in terms of security. Isn't this a very common thing to do? Assuming that the SQL Server installation is setup appropriately. Is this a bad practice?
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May 3, 2007
How can I access data to SQL server 2005 using Windows form application,ADO.net and .Net remoting?
Can anybody help me? please...
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Dec 13, 2007
SQL Database in my application with windows authentication rejects accessing after deploying and remote access
1- My web applications databese access is windows authentication
2- In developing area there is no problem for accessing database
3- After deploying to another server there is problem accessing database:
Cannot open user default database. Login failed.Login failed for user 'BRCK231ASPNET'.
How can I solve this problem?
Thanks.
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Apr 10, 2007
Hi!
I understand that this topic is one of the most discussed topics ever. However i could not find the relevant information after going through (almost) all the posts so far. Hence this post. I am getting the 'SQL Server does not exist or access denied' error when I am trying to access SQL Server from a WINDOWS SERVICE. SQL Server and the Windows service are running on two different machines. (When they are on the same machine, it works). All the solutions I found so far are related to web apps. What should I do in the case of a windows service? My connection string uses SQL server authentication. (I tried with windows authentication. Its not working either.). Under what login does windows services run and how can I add it to valid SQL server logins?
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Apr 3, 2008
Hi,
I am having a problem connecting my .net applications from the application server to the database server. When I run the application from my windows xp (sp2) box it works fine. When I try to connect via SQL Management Studio to the database server from the application server I get the same error.
Here is the error:
System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Here is the Environment:
App Server:
Windows Server 2003 Standard Edition
Inside Company's Firewall/ Network
Database Server:
Windows Server 2000 Advanced Edition
SQL Server 2000 SP4
Remote Connections to the Server is checked
Enable Protocols: Named Pipes & TCP/IP
TCP/IP Port: 1402 (I don't know why it isn't the default of 1433)
The db server is sitting out side the Company's firewall (don't ask me why). I can access it fine from inside the firewall on my XP box but not from windows server 2003. There is a web server outside the our network that also connects to the db server with no problem and that is running Windows Server 2003 Web Edition.
I can ping the db server from the app server using the IP address.
I tried using the IP address and the port 1402 in my connection string but that didn't work from any machine (XP and Server).
I imagine the issue is somehow related to the company's firewall but why would it only block Windows Server 2003 and not XP?
What do I tell the network admin to change?
Any help would be appreciated.
Thanks,
Oran
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Mar 10, 2007
Hi !
I must developp a WPF Application with online and offline capabilities! First I think to use XML file on the local application and transfer these XML files to a webservice that will synchronize them with the SQL 2005 Server
BUT
I read about "Replication"... and I think it will be much simpler to implement!!!
Do you think it is a good idea to have a "local" SQL Express database and replicate it (when connection available is) with the principal database that will run a standard SQL 2005 version!
Do you have another suggestion to make such an application??
Thanks for help!!!
PlaTyPuS
PS: when the sql express solution a good idea is, does it give a simple solution to programm an automatic synchronization every hour?
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Jun 23, 2006
I am attempting to write a Windows service that watches a database for uploaded files to import. When a new file is found, the corresponding SSIS package is run from the file system with variables passed through. I started development as a Windows app and copied the functionality to a service.
The app runs fine. The service does not. I get a "Failure" each time a package is executed. Everything is identical behind the scenes with the obvious exceptions that OnStart and OnStop handlers are buttons in the app. I added a script task at the beginning of one of the SSIS packages to notify me that it is even running at all. It doesn't even hit that initial task.
Again, the app will run all packages just fine. The data is imported and the results return as "Success."
The following is the code executing the package. Any help is appreciated. I've been banging my head on this one for a few days now. (Is there a tag to format a code sample?)
Dim pkgLocation As String
Dim pkg As New Package
Dim app As New Application
Dim pkgResults As DTSExecResult
pkgLocation = sPackageFolder & PackageName & ".dtsx"
pkg = app.LoadPackage(pkgLocation, Nothing)
Dim vars As Variables = pkg.Variables
vars("ImportId").Value = ImportId
vars("ProductionServer").Value = ProductionServer
vars("ProductionDatabase").Value = ProductionDatabase
vars("SourceFileName").Value = FileName
vars("SourceFilePath").Value = FilePath
pkgResults = pkg.Execute()
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Apr 23, 2015
I am programming an online game (such as chess) which two players can play together online.
Each one of the players should have installed the game application (developed by C#) on their computers.
When a player do some action, a record of a database (SQL Server 2012) which has been placed on the internet will be changed.
My need: when a record of this online database changes, whole the record send to both players' game application immediately.
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Aug 3, 2006
Hi to all DBAs,
I would like to ask if there will be a write and concurrency issue if i would create an online application with just one user connecting to the database, just like most open source php/mysql that can be downloaded
i.e
Setup 1. I will grant a single user that will connect to a database and will be set to a config.inc.php file and then create a table users (userid, username, password) and this table will be used for the application authentication and access control.
Setup 2. or is it much better to grant users that will connect to the database and have the table users for access control of the application?
to further illustrate my query:
Setup 1 would be:
###################Table: Users
user a@ipadd --> db1 --> userid mary --> myOnlineApp
user a@ipadd --> db1 --> userid john --> myOnlineApp
user a@ipadd --> db1 --> userid paul --> myOnlineApp
and Setup 2 would be:
#####################Table: Users
user mary@ipadd --> db1 --> userid mary --> myOnlineApp
user john@ipadd --> db1 --> userid john --> myOnlineApp
user paul@ipadd --> db1 --> userid paul --> myOnlineApp
will Setup 1 be enough if I will use SQL Server as database?
or Setup 2 is better user/database architecture?
This application will be online enrollment for a school with 16,000 students
very much appreciated for the feedbacks and suggestions
^_^x
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Mar 26, 2008
Hallo there,
I just upgraded from Windows XP Pro to Windows Vista Bussiness and tried to reinstall SQL Server 2005 Developers Edition. After the installation i downloaded (using microsoft windows update) and installed all the service packs for sql and vista available.
My problem is when i open sql server management studio and try to connect to my default instance using windows authentication and database engine, an 18456 error occurs.
I enabled all the protocols and all the ports
I disabled windows firewall and antivirus (eset nod32)
I installed all service packs available
I have also installed Visual Studio 2005 without installing sqlexpress
But nothing happens!
Please i am very desperate, any information will be gratefully accepted.
This is my installation Information
Code Snippet
Microsoft SQL Server Management Studio 9.00.3042.00
Microsoft Analysis Services Client Tools 2005.090.3042.00
Microsoft Data Access Components (MDAC) 6.0.6001.18000 (longhorn_rtm.080118-1840)
Microsoft MSXML 3.0 5.0 6.0
Microsoft Internet Explorer 7.0.6001.18000
Microsoft .NET Framework 2.0.50727.1434
Operating System 6.0.6001
Thank you in advance,
Patonios
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Mar 23, 2007
Hello,I am trying to develop a database solution for an organisation inIndonesia.This organization has a number of offices and users throughout thecountry. They all need to maintain their own data, but I also need tocreate a central database, to store all of the data, and share databetween the individual users. The problem is that the internetconnections are not reliable, so a online solution isn't possible. Iam planning to implement stand alone databases in Access, which "sync"with the central server. This sync could happen automatically (maybedaily), or could be initiated by the user. This Sync would/could takeplace when the internet connection is working.I am very familiar with Access, but I suspect that I will need to useSQL Server for the central database. I have not used SQL Serverbefore, and have a few questions:Is it possible to host a SQL Server, so that it is "Online"? What do Ineed to do for this? Does this need to be hosted by an ISP, or couldit been hosted on a computer in our office? What are the securityconsiderations?Is it then possible to connect to this SQL Server from the Accessdatabases in the various locations to "Sync" the data? If I could runSQL statements from the stand alone databases which could access theonline SQL Server I could write the code for the Sync procedure. Thebit that I am unsure of is how to connect to the SQL Server?Could anyone point me in the right direction? Examples? References?What sort of technology to use?I know VB and how to write SQL statements, it's just the connectivitythat I am unsure of.Thanks in advance.CheersMichael
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Nov 3, 2015
We have SQL cluster installed on top of windows cluster on VM environment. Node1 and Node2 under Windows Failover Cluster. SQL instance is currently on node2 the instance is up and running, but SQL Cluster service remains online pending and it restarts the instance on every 5 minutes.
SQL Browser service are running successfully.TCP/IP ports are enabled and configured.If we start the SQL server agent it is on for seconds and stopped immediately .Cluster Service is attempt to connect to the SQL service every few minutes (setting in SQL cluster resource) for the IsAlive check, if this fails then the SQL resource is restarted even if the instance was online. Hope this is what happening exactly.
[sqsrvres] ODBC Error: [08001] [Microsoft][SQL Server Native Client 11.0]SQL Server Network Interfaces: Error Locating Server/Instance Specified [xFFFFFFFF]. (268435455)
00001024.00053314::2015/10/30-19:57:50.772 ERR [RES] SQL Server <SQL Server (SIMAH_COMMDB)>: [sqsrvres] ODBC Error: [HYT00] [Microsoft][SQL Server Native Client 11.0]Login timeout expired (0)
00001024.00053314::2015/10/30-19:57:50.772 ERR [RES] SQL Server <SQL Server (SIMAH_COMMDB)>: [sqsrvres] ODBC Error: [08001] [Microsoft][SQL Server
Native Client 11.0]A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books
Online. (268435455)
00001024.00053314::2015/10/30-19:57:50.772 INFO [RES] SQL Server <SQL Server (SIMAH_COMMDB)>: [sqsrvres] Could not connect to SQL Server (rc -1
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Jun 23, 2014
i am currently working on designing a database for a bank as a school project for my database class. We have to draw up an entity relationship diagram, Sql tables, database size estimate etc. I am currently working on the security portion of the project. I need to list the groups that have access to my application and use a grid format to show access to specific tables.
I am currently working on designing a database for a bank as a school project for my database class. We have to draw up an entity relationship diagram, Sql tables, database size estimate etc. I am currently working on the security portion of the project. I need to list the groups that have access to my application and use a grid format to show access to specific tables.
Role Loans Payments Transactions Accounts Customer Emplo
Database Admin SUID SUID SUID SUID SUID SUID
Branch Manager SUI SUI SUI SUI SUI SUI
Internal Auditor S S S S S S
Loan Officer SUID SUI SUI S S
Tellers S S S S SU
Customers U
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Nov 28, 2006
Hi,
I am developing an application that uses Access database (mdb file) to store the user data. The user of this application is not interested in the database file (to view in MS Access Environment). Does the user machine requires MS Access installation to run my application or just some couple of dlls (OleDB driver, Access DB Engine,..) should be enough to run my application?
Thanks,
Rao
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Jun 28, 2004
I am developing a windows application that will run on every client station. This application will refer to a database located on a server station. Can I use MSDE for such application and if so how many remote concurrent connection can be open simultaneously?
Eric
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Nov 8, 2006
I am working on a windows application (C#) that utilizes ODBC to acces paradox tables (works fine thought this would be the problem database) and a WinMobile database(.sdf) in order to sync table records. What I need to do is copy the .sdf file from the winmobile device then access it with this application to check for changed records on the PC and in the mobile database then copy it back to the mobile device via RAPI.
The program compiles fine but when I try to run the application I get this error. Unable to load DLL 'sqlceme30.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E) .
I have already copied the System.Data.SqlServerCe.dll to my projects bin folder and then added a reference to it in the projects Reference dialog. These were also copied to the bin folder of the project
sqlceca30.dll
The SQL Server Mobile Client Agent. Required for applications that connect to SQL Server by using replication or remote data access.
sqlcecompact30.dll
Provides the compact database functionality. Required if your application will use compaction.
sqlceer30[language].dll
Contains error strings for SQL Server Mobile-generated errors. Required for all SQL Server Mobile applications.
sqlceme30.dll
Contains code required by the System.Data.SqlServerCe.dll file. Required for all SQL Server Mobile applications.
sqlceoledb30.dll
Provides OLE DB connectivity to SQL Server Mobile databases. Required only if your application uses OLE DB to connect to the SQL Server Mobile database.
sqlceqp30.dll
The SQL Server Mobile Query Processor. Required for all SQL Server Mobile applications.
sqlcese30.dll
I also added using System.Data.SqlCE to the form and the dataset designer.cs
From this code in the dateset.Designer.cs file after the run is started the eroror occurs.
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
private System.Data.SqlServerCe.SqlCeDataAdapter Adapter {
get {
if ((this._adapter == null)) {
this.InitAdapter(); Error on this line....
}
return this._adapter;
Already tried this
http://msdn2.microsoft.com/en-us/library/ms171861.aspx
Is it possible to fix this? Or work around it?
Thanks Jon Stroh
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Jan 30, 2006
Hi
My application :
On PC : Access application + Access DB
On PocketPC : Embedded Visual Basic 3.0 application + PocketAccess DB
I synchronise my DBs through ActivSync.
It runs good before Windows Mobile 5.
My customers asked me for new PocketPC with this application, so I bought some new PocketPCs : but as I see, syncronisation with Access is no more supported.
So what are my solutions ?
My customer wait for there PocketPC, so I need a quick solution, I don't want to rewrite all my application now.
My application run before WM5, so now I don't want to have to pay for a Visual Studio .Net, some SQL Server, etc ....
Please, what are the solutions that won't cost me more than the time that have already lost with this new Windows Mobile 5 ?
Joël
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Jan 16, 2008
Is there a way to control some of the windows application log settings from within the logging process of a package. Specifically the 'source' parameter which comes out as 'SQLISPackage' which i'd like to be the actual name of the package which wrote to the log, and similarly 'Category' which comes out as 'none' and I'd prefer to assign something more meaniful ?
THX
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Mar 12, 2008
Hi there, i am building a mobile app using vs 2008, the app has about 8 - 12 forms that collect data.. i am thinking of
i am trying to decide how i want to save the temporary work data while the user fills the data collection forms.
when the user selects to create a new report, i will
create a new xml file...
as user moves from form to form, i will update the file
when the user has finished filling up all the data i will create a transaction and insert the data into the sql ce database and delete the file...
i will be using sql ce 3.5
i think it supports transactions
i think it also supports identity.... i am using sql management studio 2005 standalone , so i cannot visually modify the 3.5 sdf.,..,. is there a tool for 2008 that will let me visually modify the table(s)? i dont want to use the 2008 feb community edition...
is there a better way to do this? should i skip the xml and go directly into sql ce insert (for the first record creation) and updates? i think this will be a performance killer on a win mob devilce (5.0)
p.s. i cannot store data in a class, and then commit the class to the transaction because if the application crashes i will loose class data, so xml file will be needed.,
suggestions?
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Mar 25, 2008
I need to determine the following about the current authenticated Windows domain user who is trying to access a SQL Server via a trusted connection.
1 Has the current user been granted login access to the trusted SQL Server?
2 Has the current user been granted access to a specific database?
3 Is the current user a member of a specific database role such as (DB_ROLE_ADMINISTRATORS)?
Thanks,
Sean
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Oct 21, 2004
Hello,
For my application, I need to consult a database located on a server on the local network. The application is located on my pc. I use the connection string
Code:
"Integrated Security = SSPI;database=dbName;data source=serverName"
(I program in C# and connect with ADO.NET)
When I compile my project as a windows application, this works fine. But when I compile as a web application in ASP.NET and try the same connection, it won't connect. How can this be solved?
Thanks
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May 25, 2007
Hi there,
I have a question which I put the company that host my website but I didnt get a conclusive answer. Maybe someone here will be able to advise or help me with my situation.
I want to build a database that I will run on my local server and the front end of this will be run using a windows application. I have a website which I run the database on the remote server. What I would like to do is to be able to synchronize certain tables between the two databases (such as updating products table, or orders table). I am using sql server 2005 and I am using the sql server management studio to access my database on the remote server. I did notice there is a synchronzie button. I also came across some 3rd party tools. Not sure if that is the way to go.
If anyone as done this before or can give me any suggestions, I would be delighted.
Thanks
Anthony
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Feb 10, 2008
HelloI use vs2008 and i try to make a simple windows program with add records to a database. The problem is the database don't store the values that i add. When i run my program (in design mode) everythynf looks fine, but if i close vs2008 and restart it again the database is empty.
Why?
Thank you
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Sep 14, 2005
I'd like to build a simple search engine against Sql Server. Does .NET Framework provide some class to help in this task? From what I've heard there is an interface which implements it..
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Feb 7, 2008
OK
We have always used sql servwer login to the servers for all our applications for out intranet apps
And we use windows auth to do development
So when we do that we logon to wuindows, and then just connect, with no password required
But how does an application "logon" to connect to a database
Is it just in the connection string just like sql server auth
or is it different?
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Jan 21, 2008
Hi,
I'm writing a windows application using VB.NET 2005 that must connect to Pocket PC via ActiveSync to read data from SQL Server CE. This is my code:
Dim cnn As New SqlCeConnection
cnn.ConnectionString = "Data Source =Mobile DeviceStorage CardProgram FilesMyAppMobileDB1.sdf"
cnn.Open()
But I get the following error:
The path is not valid. Check the directory for the database. [ Path = Mobile DeviceStorage CardProgram FilesMyAppMobileDB1.sdf ]
Any help would be greatly appreciated!
Leila
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Oct 6, 2006
I'm a database newbie, trying to decide whether to create an SQL Server or Windows Application project that uses SQL Server 2005 Express. As I understand it, the advantage of an SQL Server project is that the app deploys somehow as part of the database. If that's the case, how would I handle the scenario where the database has been updating at customer site and I need to install just a new release of the software? Would I be better of creating a Windows Application project and connecting to the database explicitly? Thank you.
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Feb 5, 2006
I've read that microsoft.applicationblocks.data for .net v2 can't be deployed to a mobile app, and my experience bears that out. So I 'm wondering if there are application blocks for windows mobile 5 that would know how to both talk to sql server mobile and sql server 2005. I see OpenNetCF has a port but as far as I can tell, they only address sql server mobile and not talking to a sql server 2005 remote database. I can use the OpenNetCF version for my sql server mobile requirements, but I'm hoping there is an encapsulation of sqlclient calls for communication with my server db.
thanks
braden
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Oct 25, 2006
Hi everyone,
Every time that my application throws an .DTSX file I don't know who or what is writing on eventviewer.application if failed or successful.
Execute method implements a customized class which implements IDTEVENTS but I promise that in any place of my code I'm writing that information.
app.execute(nothing,... MYEVENTS)
Public Class MYEVENTS
Implements IDTEVENTS
..
..
..
..
All the methods are declared although empty but OnQueryCancel which is customized.
How to disable this behaviour?
I'm concerned for that because of we could launch (when it's gonna in live) 300 or 400 packages on-daily basis!!!
Thanks in advance and regards,
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