Database To Use For Compact .net Application Or Java?
Jun 5, 2011
I'm looking for a compact and small database engine to use, because i want to design an application that will store, record and get data from a database, i'm thinking of using VB or java as the programming language, the database that will work best for which programming i need an advice on which databse engine to use, one that i can bundle with the application after it has been developed, so the user can use the application and the databse on their systemfreely. A flexible database engine.
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Oct 15, 2009
Ive created one database Sql Server Compact Edition 2005, with one table ("Cliente") I know that I can created my database good, but i have a problem saving information since three textbox, in my table(With columns "Nombre" "Apellido" "Cliente". In my form there is a button save ("Guardar"). When I do click in my button appear the next message : "The column cannot contain null values. [ Column name = Nombre,Table name = Cliente ] " and happen the same with apellido and Id_Cliente. And this happen becouse my code cant save the information....
This is the code
Option Explicit On
Option Strict On
Imports System
Imports System.IO
Imports System.Data
[CODE]...
And the code for my button is:
Private Sub cmdguardar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdguardar.Click
Dim myconnection As SqlCeConnection
Dim mycommand As SqlCeCommand
[CODE]...
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Feb 9, 2009
I am in the process of developing a messaging framework for a windows application that sends messages to a java application. To be precise when the win app wants to send a message it simply drops the message in a common database table which will be picked up by the java app. The windows application is deployed across 10 application servers (10 instances) over citrix for load balancing.Each instance of the application is capable of sending a message to the java application and each of these messages should have a unique id. From my end I need to make sure every message generated has to carry a unique id so that they can be identified when necessary. All the messages can be cleared every day or two.i am not quite sure about a best method of achieving this. Initially I wanted to create a static method that serves the next available id (incrementing the last id by 1). But this approach willn't guarantee unique number as the application starts only when at least one user is logged on. For e.g .On one server the app starts when a user logs in, he then sends a message and then the application stops when that user logs off. So when a next request for the app comes to that server a new instance will be started.
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Mar 24, 2010
how to convert an existing Standalone Java Application to a Dynamic WEB Application which can be deployed on Apache-Tomcat Server container ?
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Dec 25, 2011
I need to run an external JAR file (which is minecraft) within the window (form) of a VB.NET application, so like having the program in the center and additional text I like around it.
Is this possible, and if so, how?
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Dec 7, 2010
How can I add data to SQL Compact Database from DataGridView?Striving to do my best.
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Aug 4, 2009
I am new to vb 2008 and I can't seem to figure this out.
When I try to add a database to my project I get this error (Please look at .jpg (Firsterror)
I have selected the correct driver SQL Compact 3.5
It will add the database to the project but the FULL PATH is always incorrect and I can't change it. (Please look at my seconderror.jpg) the correct path is C:SQLSample.sdf
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Mar 26, 2009
I am using Access database. Now i compact the database by using DAO and sometimes using JRO. But to this both, we have add the COM reference.
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Jun 6, 2012
Had any of you tried to migrating the code written in Compact framework (For Windows CE mobile application) into windows application 2010 I did this but getting .resx error i.e resource file error since it is in old version.Has any of you tried a workaroud on this in order to get rid of .resx error.
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Aug 19, 2011
I have the following code which I hoped added a row to my DataGridView and also a record to my database. It does the first part, but not the second.
Dim row As DataRow = Me.CCLogDataSet.tblLog.NewRow()
row("cc_log_contract") = Me.txt_Log_Add_Contract.Text
row("cc_log_registration") = Me.mtb_Log_Add_Registration.Text.ToUpper()
row("cc_log_milage") = Me.txt_Log_Add_Milage.Text
[Code] .....
It seems to be storing the data in memory? As the data in the DataGridView is persistant, even after a Relaunch of the application. However, why I query the database, there are no records in it.
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Apr 7, 2011
I'm updating an old VS 2003 project to VS 2010. Part of the application uses the old JRO COM object to compact the database. That seems to be depreciated in 2010.
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Aug 20, 2011
Is there a way to write an application in VB.NET that will create a Compact 3.5 database on my desktop and then fill it with data from a SQL 2000 database?
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Aug 27, 2008
I'm wanting to add an SQL Compact database to a VB project. I am running VB 2008 Express and using SQL Compact 3.5 SP1.I've followed the various tutorials in adding an SQL compact database in VB but in all cases when I add a new item to the database (from within my VB Form1 window), pressing the Save button (via Binding Navigator Toolbar automatically added to Form 1) will save the data to the defined 'DataSet' BUT will not update the main SQL compact database.I've followed the tutorials line by line many times now.Anyone have an ideas why this will not function - the tutorials say it should be automatic?
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Nov 29, 2011
I'm using the Microsoft Access Database Engine and trying to do a compact using the following code:
Dim acc As New Dao.DBEngine
Try
acc.CompactDatabase(serverDataPath & "MQRMeta.accdb", serverDataPath & "MQRMeta.001.accdb")
Catch ex As Exception
PrintLog(modName, rtnname, "Error compacting database. " & ex.Message, "MQR2500E:")
End Try
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Mar 16, 2009
Has anyone succeed to compact an Access 2007 database via VB.net code? The previous methods from JRO don't work anymore and there is no help on msdn on how this could be done for 2007. compacting this database?
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Feb 1, 2007
I am using VB .NET 2005 and I would like to compact an Access 2003 database.I've read "How to compact a Microsoft Access database by using Visual Basic .NET" from the knowledge base but it will only save in Access 2000 (link below).Attempting this with a 2003 database throws an exception about not being able to save it as an older version (losing features and what not).Is there a way to do this with a 2003 database? url....
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Aug 17, 2011
My VB.NET program compacts and repairs my DB, but somewhere in the process unsets the database password. No problem, just reset it through VB, right? not sure how to go about that task.
So I either need to know how to compact it without losing the password, or how to reset the password after I lose it. Trying the best I can to make the code look decent in my post, let me know if there is a better way.
Dim strAccessDatabasePath As String = System.AppDomain.CurrentDomain.BaseDirectory & "App_DataSquirrel.accdb"
Dim LockedDbFileInfo As New System.IO.FileInfo(strAccessDatabasePath.Replace(".accdb", ".laccdb"))
Dim TempFolder As String = System.AppDomain.CurrentDomain.BaseDirectory & "App_Data emp"
Dim TempDB As String = TempFolder & " emp.accdb"
[Code]...
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Dec 2, 2010
I have made a SQL Server Compact Edition Database File (.sdf) and created tables inside. However as I am new to SQL Server I don't know how to connect to the database using VB .NET.Code I have now:
Dim sqlcn As New sqlconnection()
Dim sqldataset As New DataSet()
Dim sqlda As SqlDataAdapter[code].....
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Apr 16, 2010
I need to get the output (displayed data) from a Java Console App to be parsed through my VB.net application. I also need to send input to the application. How can I accomplish both of these tasks?
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Aug 6, 2011
I need to get the output (displayed data) from a Java Console App to be parsed through my VB.net application. I also need to send input to the application. How can I accomplish both of these tasks?
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Apr 13, 2012
I have been asked to create a project in vb.net which needs to integrate a java class created by Apple (Autoingestion.class) to pull sales records and so on.I found out a couple of questions here on stackoverflow but none of the answers given worked for me when trying to integrate this java class in my .net application.For example this question seemed to be what I really needed but when trying to compile this java class (I decompiled it first using Java Decompiler), it generally throws some errors.All I need is to use this class in my application to invoke a method.Does anyone know how to pull this out without much ninja-ing?
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Oct 16, 2011
I am making an application that automatically sends text (Basically an autotyper) for a game called "Minecraft". Minecraft is a java application. I need Minecraft to be in focus when button1 is clicked. It will then send the keys.I know how to get it to focus on simple things such as notepad but it is not working for minecraft.
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Jan 9, 2010
What i need to know is, is there a way of getting text from a java application/Window.i have search on google for references and have been unsuccessful.
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May 22, 2009
Including NET Framework 3.5 - SQL Compact Server and other packages in VB 2008 Application installation
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Oct 26, 2009
Previously this was not problem on XP/Vista (with minor changes), but windows 7 (64bit), is having issue's and I thought it might be how I'm implementing this time around? This is the original version just gives a com exception error of {"Cannot create ActiveX component."} [Code]
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Aug 30, 2011
I would like to know if there a way to Compact and Repair an Access 2007 Database Programmatically Using VB 2010?
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Jul 20, 2009
i need to convert a Java tool into a VB (2005) application. Most things are fairly straight forward, but i have on a few lines my problem the appropriate VB function to find.
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Oct 29, 2009
I wrote a Java class that parses a bpel text file and then returns a count of the number of occurences of certain words. I wanted to convert it to VB2008 Forms application, so that its results are displayed in a TextBox and not on the console. The problem is that VB2008 lacks Scanner and StringTokenizer classes, which are in my current Java class. Am not sure how to get the same functionality (or better) in VB2008. Can someone out there help to convert this class.
[Code]...
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Jun 27, 2012
i Have Used Database file for storing Data in my Application.Now I want to take backup of data in Access, Excel or in Any other Format.
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Jul 21, 2010
using vb2005 to write a windows mobile 6 app, need to retrieve data from the sql compact editions database and print info in labels and textbox. i also would like to know how to add the info obtained from a date time picker, radio buttons, and a textbox to load it back into the sql server compact database so that it is updated with new records.
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