querying a remote Access database! We are currently using this because thus far we have failed at hooking up a sp_linkedserver. I feel like it's a terrible hack and want to be done with this whole network mapping business once and for all!
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Basically for normal select queries from my database I have no problems as I would put the following and then bind it to a controller to display the iteam, however now I am trying to query sum of a field from the database, but I think it should be different as It's giving a Nullable value:
SELECT SUM(PointsRedeemed) AS tAward
FROM [Transaction]
WHERE (BusinessId = ?) AND (CardNo = ?)
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I am trying to search for the occurence of a string within MS Access database with 1000000 records using VB.Net. The program does not respond once it is run or it is taking a very long time. However, if I reduce the size of the database the program runs.[code]...
View 2 RepliesMy client keep on insisting that they want there database to be ms access and not sql server. But they also what to be remotely accessible in there network.
Is it possible to use ms access as a remote database? would the database locked up once a connection is made?
i have written an application in vb.net 2008 that i want to access a remote database.when it tries to connect, this is the error message:[code]
View 2 RepliesClient form need an access to the ms access database located at the Server. I've just created a database in MS Access in the format .mdb, 2000 version. Forms created in the platform Visual Basic 2010. Kindly post procedure or source code to do it. I preferred to use OleDB connection since i used it on a stand-alone access to database.
View 4 RepliesI am currently developing in Visual Studio 2008 (Visual Basic) and I have no problem reading, editing, saving, etc. to a 2007 Access database that is stored locally using the following code:
Dim NotifyDS As New DataSet()
Dim NotifyCon As New OleDb.OleDbConnection
NotifyCon.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|DataSettings.accdb"
NotifyCon.Open()
Ultimately I am going to be installing this program in my office on multiple computers, but would only like to have one "server" program where the database is installed. All of the other computers will have access to this one database over the LAN. For some reason I am unable to access this remote database file over my LAN. I have tried all sorts of things (including a username and password for the server computer),
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I'm trying to access server database from a remote computer in lan-based network using this connection string "Server=192.168.10.2; user id=user; password=pass; database=sample_db" .. but it can't open a connection.. I don't know what to do, I tried searching for this but no luck.
View 3 RepliesI have an issue with am access database source located on a remote computer.I tried using ADODB to access it, it works, but when I change( update insert or delete) the database on the remote computer, the changes is not reflected in my application
View 1 RepliesI'm currently designing a client application that connects to a SQL Server 2005 database. My app is being used to display data, allows users to run reports and stats on the data. It is being developed using VB2008. Within my VB2008 project, the connection string to the DB is made via SQLEXPRESS.
The road block that I'm running into right now is that it only allows me to connect to a local DB file (.mdf) only. I tried to connect to a different DB file on a server within the same network domain, and it generated the following error:
"The file "U:Data.mdf" is on a network path that is not supported for database files. An attempt to attach an auto-named database for file U:Data.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share." (where U: is a mapped network drive).
Below is the actual connection string in my code:
"SERVER=.SQLEXPRESS;AttachDbFilename=U:Data.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True"
The intention is to have the DB reside on a server, where there is another application that runs as a service to collect the data and then populates this DB. Then my app would just connect to the database, and allows users to run reports based on the data in the DB.
I heard that this is the limitation of SQLEXPRESS: it will not allow connection to a remote database. This is true? If so, is there anyway that I can get around this limitation?
The main reason that I chose SQLEXPRESS in the first place is that because of the licensing issue. The company that I work for do not want to make the users of our software app have to purchase additional license for the full-blown SQL Server Enterprise edition. I also heard that SQL Server Enterprise edition does allow you to connect to a remote DB (.mdf) file.
I have an MS Access 2003 database built that resides on a shared network path at the company I work for.The database works perfectly for users connected directly to the company network.However, when a user tries to open the database while connected remotely to the company network (they can still access the shared path), they receive the following error:The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time.At the time that they tried it, they were the only person accessing the database.They tried a local copy as well as a copy on the network shared drive.[code]
View 4 Repliesthe remaining code for my vb.net project? In my Project, I have a table name tblBatch that has a field name btchGravel. Since in my project, a field name gravel has more than 10 inputs from the 10 textboxes in my main form. I manage to save it in this manner:
'Save the textboxes in a single string, separated by comma
Dim GravelLine As String
GravelLine = txt1G.Text & "," & txt2G.Text & "," & txt3G.Text _
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I'm trying to open a connection and create an SQL statement with two different tables in different Access DBs. Is this possible? I'd like to join the tables in a query.
Is there a great advantage in splitting somewhat large Access databases? Or is it best to just create a large access database with many tables?
I am trying to autocomplete a Textbox using the AutoComplete Extender. My Web Service is as Follows:
Code:
Imports System.Web
Imports System.Web.Services
Imports System.Web.Services.Protocols
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I'm looking for the most efficient way to query an Access table from VB.Net. I think throughout the life of a run I'm going to need to query the table ~1,000,000 times. I'm using Access 2003 to hold my data. What I've been doing so far is this:
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I am querying the MS Access Database to display the results in a datagridview. This is my
Dim ConnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=data.mdb"
Dim SQLString As String = "SELECT * FROM Groups where Selected = Yes"
Dim OleDBConn1 As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(ConnString)
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The variable Selected from the query statement ("SELECT * FROM Groups where Selected = Yes") is a Boolean in the MS Access Database. However, this statement returns empty result even though most of the values for Selected are Yes. In the access database however, if I enter a 'Yes' for the value of Selected, it shows up as -1 and 'No' shows up as 0. So I even tried changing the query statement to ("SELECT * FROM Groups where Selected = -1") and also ("SELECT * FROM Groups where Selected = 'Yes'") but none of them work. Can you please help me fixing this query because I can't change the database?Also if I change the query statement to ("SELECT * FROM Groups"), then all the data shows in the datagridview, however, the values for Selected column do not display. Instead I see check boxes and I can't click them. How can I display the values correctly?
I have an access database with a table called [yearly stats cape town] This table has the following relevant columns to my query. [CASE NO], [B/W/C] [1ST APP MAG CRT].The goal of the windows form I am doing is to return the total number of unique case where [B/W/C] = C (in custody) and [1ST APP MAG CRT] contains a date longer than 6 months ago from the current system date. To determine the total amount of cases I use the following query.
SELECT COUNT(*) AS [CASE NO]
FROM (SELECT DISTINCT [CASE NO] AS [CASE NO 2]
FROM [YEARLY STATS CAPE TOWN]) derivedtbl_1
I`d like to do a query to a SQL server database using the statements like "SELECT...FROM...." an so on. Then I`d like to save results of the query to an array or other variables. I`d like to handle the data of the query results "manually". I don`t want to use the datagridview and tableadapters and so on which are created when I drag a table from the datasources window to the form. is the ADO.NET and datasets the right tool at all? If yes, I believe these are the first steps needed:
- create a connection string
- create a connection and open it
- create a dataadabter
- create a dataset and populate it with the dataadabter
The first problem is the connection string. When I create a connection to a new data source in datasources window, a string is created and saved to some configuration file. Can I use it and how?
vb
Dim conn As New OleDb.OleDbConnection(ConnStr)
conn.Open()
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I have to access remote connection from XP os to Vista os in vb.net How to do that?
View 1 RepliesI'm trying to use LINQ to SQL in Visual Basic 2010 Express.
It allows me to create the .dbml file, but in order to drag items from the Database Explorer window to the design surface, I first have to get my database listed in the Database Explorer!(this is a remote SQL Server database - not a local .mdf)
I already have a good, working connection string to the remote SQL Server database, but that doesn't help me when I'm trying to generate the DBML at design time.
Can anyone tell me how to get my remote SQL Server database identified in the Database Explorere window? When I try the "Add Connection", I am limited to Access, SQL Server Compact, or SQL Server Database File. If I try to enter the IP address & port of my DB Host I get a 'database file does not exist' message. Doesn't seem to want to let me point to a remote DB server...
Recently working in vb 2010 express. I'm using service-based database which is based on SQL Server. This database will be deployed at the server. Is it possible that multiple vb.net programs, which are installed in remote computers or client computers in the same network, connect to this database simultaneously? Does the service-based database support multiple connections?
View 1 RepliesI've found a few examples of using vb.net to access an sql database, so far none of them have worked . They all involve using DataReaders. Maybe its the fact that the sql db is not on the same machine as the application.I was just wondering if anyone had a more comprehensive example of using VB.NET to access a remote sql server.
EDIT:I've received a few helpful comments an replies already. So far my connection string looks like:
"server=sqlblah.myhost.com;uid=myuser;pwd=pass;database=testdb"
Probably also good to mention their is no editing of the tables a this point, just reading.
I was wondering can I make a program that I can send to other computer so i can access their screen. is this something that can be done in visual basic? i ask how to do this because Verizon did this to me the other day i saw him moving the mouse around and checking the connection but of course i had to accept this and it showed me a thing saying he was off when he was done.
View 1 RepliesRemote registry access using WMI VB.Net..I just need simple example of how to access a remote registry (2000, XP) using the "System Registry Provider" (WMI) in VB.NET.
View 6 RepliesI have a web site that connects to a remote SQLServer, and is running just fine.I have some pretty simple 'batch' type tasks that I want to run (as a Windows application) on a scheduler (I'm more comfortable with VB so I prefer that).
Looks like VB Express won't allow me to access the remote data. Everything seems to be pointing to having to buy VS Professional for $545 (I don't have an original one to upgrade). Is there a more economical VB option?
I can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 RepliesI am looking to access a folder on my web server to retreive a picture and to replace a picture in that folder. I am using VB.Net 2005.
View 3 Replieswhat are the requirements needed on how to control a terminal pc in terms of programming it. i am planning to use vb.net when we develop the system.
View 1 Repliesi want to access com port of my remote pc. this pc is connected through LAN.how can i access com port of remote pc?
View 1 Replies