I'm creating a database backup function into by program which will allow the user to locally backup a database to the selected folder. How do I go about doing this? I realise you cant copy an open database, but I cant think of any other way to do it.
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I am able to copy the complete online mysql database to the local ms access database, but the problem is that the local database needs to be emptied before the new data is being copied. And a progressbar needs to display the entire progress. Here is the code what I have now:
Private Sub StartScreen1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim dt As New DataTable()
[Code].....
(using VB2008) I am trying to automate Access from VB.Net. To do this, I added two libraries to my project, Microsoft.Office Interop.Access v12.0.0.0, and dao v10.0.4504.0. This seems to give me all the necessary commands, yet when I tried to open up an Access database via the following code:
CODE:
I have two MS Access databases (with identical table structures), and I'd like to use a SQL statement (programmatically in VB.NET) to copy records from one to the other. Both databases are locally stored, in the same directory (and this will always be the case). Suggestions?
View 2 RepliesI have a folder C:databases and in that folder there are subfolders C:DatabasesDatabase1 and CDDatabasesDatabase2 What I want to do is have a VB script or code that will go through each directory and make a copy of all .mdb database files found within the folder or subfolders of C:Databases.
View 4 RepliesI need to code the following:
1.Connect to an Oracle database.
2.Execute a query.
3.Insert the query result into an Access database table.
I�m able to solve points 1 and 2. how to code point 3?
The fact is I'm making an application, which users can install by using a Setup file...once installed the data in the database can be updated by a centralized server. To do this, they can insert a DVD/CD-ROM and export the necessary data towards it. I need to do it that way, because some of the users who really need this data will be using stand alone computers.The application gets it's data from a mdb-file and the connection remains open as long a person works with the application (maybe not the best way to do, but I know :-) )...when the user uses the application, he can perform an export...this exports the .ini-file and pictures (which works fine), but he also needs to export the mdb behind the application...I already tried connection.close() before and connection.open() after the System.IO.File.Copy...but that doesn't seems to work.
View 2 RepliesI encounter some problems when doing coding of backup file by copy and paste the database(Microsoft Access File) to another directory. Example, textbox1 will show the path of file that I want to backup, textbox2 will show the path I want to copy to. I need 1 button for browsing the file and another button for make confirmation of the path that I want to copy to.
View 2 RepliesI am able to copy the complete online mysql database to the local ms access database, but the problem is that the local database needs to be emptied before the new data is being copied.And a progressbar needs to display the entire progress.Here is the code what I have now:
[Code]...
Getting this error message and can't seem to figure it out.I have checked and the database iS CLOSED from all possible angles.
rivate Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ref()
[code]....
how do i open any access database in visual basic? the code will be general as i will not know the actual filepath of the database itself
View 3 RepliesI have two MS Access database; Mydb1 and Mydb2. I would like to do the following:
1. Copy all records in table (MyTable1) from Mydb1 to Mydb2. MyTable1 also exists in Mydb2
2. Move all records in table (MyTable2) from Mydb1 to Mydb2. MyTable2 also exists in Mydb2 which needs to be flushed.
I am trying to import data from an access database to a access database that my project uses I am having problems with combo box fields in the database with the data. I want to import what is displayed instead of the numerical key value. Example: The combo box displays employee names but the value stored is the key value from the employee table so instead of importing John Doe it imports 2 is there a way to make the actual name instead of the number?
View 4 Replieswith two fields each and write the results to a third Access database as part of a data mining program with finance applications.Here is the code in question:
Imports System.Data.OleDb
Partial Class Form1
Dim DMDatabase01 As OleDbConnection = New
[code].....
i use this command to open my ms access database file, but it is not working, what is the problem.... i learn this command from internet tutorials. [code]
View 3 RepliesI am using ms access 2003 as my database in vb.net,i want to secure it with a password. what should i add to my code to open my DB?
Public con As New OleDb.OleDbConnection("Provider=Microsoft.jet.OLEDB.4.0;Data Source=C:\jada\Database\jadaDB.mdb")
I want to open an accessdatabase in vb.net with a click of a button.I found this example code at the microsoft site.[code]I've added it to my project, but it gives an error that the type 'Access.application is not defined'.
View 1 RepliesA. A Visual Basic program is developed to read a text file to Access 2003 database using the Data Access Objects (DAO). The following is the DAO command:
Set db = DAO.DBEngine(0).OpenDatabase("C:TempMyAccess2003.mdb")
B. The office Access 2003 database (*.mdb) is going to be upgraded to Access 2007 database (*.accdb).
C. The Visual Basic program is revised to read the same text file to Access 2007 database using the same Data Access Objects (DAO), The following is the DAO command:
Set db = DAO.DBEngine(0).OpenDatabase("C:TempMyAccess2007.accdb")
D. The following error message occurs when the revised Visual Basic program is executed:
"Run-time error '3343': Unrecognized database format"
I had previously used VB6; I am now using VS2008; What is the best manner to now open the database using the VB code? The code works with the Access 2003 database.
I have an app with a password protected MS access database connected to it. lets say the password is "123".
when I run my app i get an error saying that the password is incorrect even thought its not.i have been readig around but am strugling to find a solution.
this is the line that causes the error:
Me.Table1TableAdapter.Fill(Me.PassSafeMianDataSet.Table1)
I can't open an Access database on a mapped drive. However it works if I use the UNC path. how I can get this to work? See the code below for an example of what works and what doesn't...
Code:
mConnString = "provider=Microsoft.Jet.OLEDB.4.0;Data Source=\tiger-2000dvb_mt7MTrackBE.mdb" ' This works
mConnString = "provider=Microsoft.Jet.OLEDB.4.0;Data Source=T:vb_mt7MTrackBE.mdb" ' this does not work
Dim objConn As New OleDbConnection(mConnString)
[code].....
The error message I receive is...'T:vb_mt7MTrackBE.mdb' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.I've done the obvious and verified that t:vb_mt7MtrackBE.mdb is a valid path.
I've been working on an application for awhile that, basically, allows the viewing and printing of a maintenance database. It allows the user to view basic information for the object and then view the maintenance history. My approach for the maintenance history is simply to have unique tables per object since a history has to be kept for each, however, I'm running into a problem in the application that allows the user to view the general information from one DB and the Maintenance history from the other DB.
Say you have Object ID BG1. I can enter the object ID into a search field, pull the data from the general DB and display the data, but I also need it to pull the information from the maintenance history and display. If maintenance history for this object is not found, then create a new table within the DB, fill the columns with the required fields and allow for the user to edit the history.
Open a Access database (protected with a password) in my application in Visual Basic 2008. I use Oledb connection to link my Application to the database. When my Access database is not protected with password my connection goes well, but I don't know how to set my password of my database in my application. I have "googled", but I can't find something that works for me. [code]----
View 3 RepliesHow open password protected MS access database in MS access environment from vb 2005 code
View 1 Replieshow to open password protected MS Access database using vb.net windows application?
View 2 RepliesI have an access 2007 database that I have been developing a front end for in vb.NET for the past 3-4 weeks using vs2008 in a Windows 7 enviroment. Yesterday I started getting an error of "Your network access was interrupted. To continue close the database and then open it again." This happens in the Form Load on the line:
gotData = Me.LeaguesTableAdapter.Fill(Me.LeaguesSeasonsPlayersDataSet.Leagues)
I can go into access 2007 and view all the data fine and in vs2008 I can view the server explorer and browse the tables. However, under data sources if I try and preview the data, I get the same error message as before. What confuses me the most is that the database is not stored on a server is just stored in My Documents. It was origionally stored on my desktop pc but has been copied to the My Documents on my laptop. But as I mentioned previously it has been working fine and has just all of a sudden started throwing this exception by my Try Catch routine. FYI I have tried creating a new DB and importing the tables from the old DB but this hasn't solved the problem either.
When using SQL connections in my program, will I have to open and close the connection and the data reader each time I want to access the database ?
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I coded a program to access a Microsoft Access 2010 database. The program is written using Microsoft Visual Studio 2010. I get the error message that the database I'm trying to access is in an invalid format. look at the code below to see what I missed. The error is in the datasource statement.
[Code]...
quite new to database queries through VB. I have just created a DB using MS Access and I need to write data to it from my VB Application.Can anyone point me on which objects should I use to execute these write transactions?
View 6 RepliesI am trying to query a MSI to get the ProductCode from the MSI so I can later populate a script with the proper ProductCode.During debugging it "looks" like the database is open for read, however if I look at the oDB object I see this "Error = No further information on this object could be discovered" When it tries to do the OpenView on the SQL statement it throws an exception "OpenView, Sql" I believe that is because the MSI really isn't open for read?I have added the reference to the Microsoft Windows Installer Object Library version 1.0.0.0
Here is the code: (I pass the fully qualified path + filename of the msi)
Private Sub GetMsiProperty(ByVal sMSIFilePath As String)
Const sReadMSIDataBaseErrorStr As String = "ERROR: Could not read MSI database!"
Const msiOpenDatabaseModeReadOnly = 0
[code]....
I created a SQL DB named MainDB.mdf and a small VB 2010 application with some forms and datasets. Everything was working OK until i got a new computer and re-installed Visual Studio 2010 and SQL server 2010 on it. I copied my DB from the old to the new computer and also copied by VB 2010 project to it. I used Windows Authentication to connect to the DB in the old computer and also in the new one, i am using different Windows user account names though.
I was able to connect to the DB in the new computer in the Server Explorer section, i created a new connection string to the DB and i can seed there is data in the tables. When i run my VB 2010 application created in the old computer get error:
"Cannot open database "MainDB" requested by the login. The login failed. Login failed for user 'D630Admin'."
I need to get rid of that error and be able to add/mod/del data from my DB using my VB application as i used to.
