DB/Reporting :: Which Database Engine To Use
Nov 12, 2010
I am developing a software that connects to a database and manipulates product and user data. It works on my computer but it will have to be used by many computers maybe even world wide (who will access the same database) so I have no idea what kind of systems people will have. I still don't know how to ensure that they will be able to connect to the database for I have already had problems in Windows 7 computers which don't have jet oledb.4.0
I am a bit lost here because I don't know if I should first try to do a connect, or if I should first look for a jet oledb engine on the computer where the software is installed. And in case they don't have it installed should I prompt them to install it before running the program further? Or should I pack the engine along with my program? What is the line of thought here to make the program run on (almost) any machine?
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Apr 13, 2011
I need to choose a database engine for a project, and have run into some issues. What I want is an SQL engine that works in a server/client environment, where i also can backup the database files from disk. If I am not mistaken, i have to detach an MSSQL database to be able to copy it in the file system. And SQLite is no good for the server/client environment. Will MySQL accomplish this? I think PostGreSQL has the same issue as MSSQL, but I don't know about MySQL.Oh, and it needs to be free to publish with my application.
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May 4, 2011
I have an access database that has nested queries. For example, the querydef below is called qs_Pedon_type: SELECT qs_Pedon_basic.peiid, metadata_domain_detail.domain_id, metadata_domain_detail.choice, qs_Pedon_basic.siteiidref FROM qs_Pedon_basic LEFT JOIN metadata_domain_detail ON qs_Pedon_basic.pedontype = metadata_domain_detail.choice_id
[Code]...
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Aug 3, 2010
just if you are using Microsoft Access Data Connectivity Components 2010 in your application to read data from mdb access files, you might get unexpected exceptions and your application will crash!To reproduce this behavior the best way is to run my sample application which will allow you to see the bug directly in no time.This behavior may occur at any time, any where, but I found if you use Application.DoEvents, you increase the chance to run your application to crash.To reproduce ::
1. You should not have any Office version installed on your system (I am using Windows 7 x64).
2. install the Microsoft Access Database Engine 2010 x86 (or x64 and you'll have to set your project to x64).[URL]
3. Download and run my sample application in VB.NT 2010, and press the button, you will get it [URL]Where is Microsoft going, do you think?Should I hope to receive an official response?
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Feb 15, 2011
I created a database and table programmatically with this [code]...
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Feb 7, 2012
I'm using old DAO 3.6 to connect Access database (with mde extension). App works fine on XP and on Win7/Vista when UAC is low/disabled. But when UAC is on I get following error: The Microsoft Jet database engine cannot open the file 'C:ProgramDatacompanydb.mde'. It is already opened exclusively by another user, or you need permission to view its data. [code]
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Jul 29, 2009
I have an error to go mad. My vb.net application makes a report that runs fine in my local machine (with vs2003 and SQL Express 2005). My problem occurs when I execute this using an external database (SQL-Server 2000). Then my app returns the error "Query engine error: "c:....".The actually data origin for report is a dataset, and I've compared the two datasets fill
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Jul 7, 2009
I have been visual basic for sometime now and I want to develop a quiz engine that uses database to retrieve question. I also want it to be able to save users name.
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Nov 9, 2010
i'm pulling my hair out on this one. the error i'm gettting is: The Microsoft Jet database engine cannot open the file ''. It is already opened exclusively by another user, or you need permission to view its data.
[Code]...
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May 12, 2010
I'm trying to import data from an exel sheet to a data grid but I keep on getting the following error "The Microsoft Jet database engine could not find the object"
Here is my code
Imports System
Imports System.Data
Imports System.Data.OleDb
[Code]....
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Apr 8, 2011
I have a vb.net 2005 application that connects to an access database. I use Access Database Engine 2007 to connect to to this database.
Everything worked fine until i install MS Office 2010. After this, the application started to crash, returning the error 'application has stopped working'.
I've a Windows Seven Enterprise SP1 32bits.
When i debug the application, visual studio also crashes. I get the following error, closing an OleDbConnection: 'vshost.exe stopped working'.
I decided to run some tests. I installed my application on 2 virtual machines: a windows xp sp3 and a windows 7. When i installed ACE 2007 everything worked fine, but when i installed ACE 2010, thats when the problems began. This behavior ocurred on both machines.
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Dec 16, 2011
It used to be that the VB6 installation tool automatically recognizes a MS Access dependency and includes the appropriate DLL(s). In VB.Net (2008) I am struggling with the concept of having to have two different installations, one for my tool and one for the 2007 MS Access Database Engine... Can you tell me if there is at least a way of manually including the appropriate Database Engine Files in my application installation?
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May 10, 2010
The 32 and 64-bit versions (of the ACE OLEDB Provider) have now been released to support Office 2010:
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Mar 9, 2011
I developed a simple Access database and I create a VB .Net user interface. can't INSERT data into the Table here's my sample code..
Dim con As New OleDbConnection
Dim cmd As New OleDbCommand
Dim da As New OleDbDataAdapter
[code].....
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Nov 3, 2010
I am trying to deploy a VB2010 programme that uses the 2010 Access Database Engine. The programme falls over when starting, with an error trying to access the Database. If I Install the programme on a machine that has Office 2003 installed - still installing the 2010 Database Engine - then it runs OK.Does the Database Engine work?
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Jul 12, 2010
I've installed the Microsoft Access Database Engine in order for an app to read and update and Excel file using OLEDB on a 64bit operating system. It all still works fine on 32 bit however i get a "Failure Creating File" error on a 64 bit machine.I'm using the following connectionstring(VB.Net) as per [URL]:
lstrConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C: empexcelfile.xlsx;Extended Properties=""Excel 12.0;HDR=YES"";"
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Jun 12, 2011
How do you store data in the access database and also to retrieve it? and also a search engine for the database?
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Jun 22, 2010
I'm trying to import data from an exel sheet to a data grid but I keep on getting the following error "The Microsoft Jet database engine could not find the object"
Here is my code
Imports System
Imports System.Data
Imports System.Data.OleDb
Public Class ExellFrm
[CODE]...
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Jun 6, 2011
icant conect to database with visual basic i get this error "The Microsoft Office Access database engine cannot find the input table or query 'Puna'. Make sure it exists and that its name is spelled correctly"
Here is my code :Public Class dataLayer Private Shared connection As OleDb.OleDbConnection Private Shared Sub connect()connection = New OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & IO.Path.Combine(My.Application.Info.DirectoryPath, "Fiskal.accdb") & ";Persist Security Info=False;")
[Code]...
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Oct 29, 2010
I am using VB .Net to connect to an access databse when using several connection sometimes i get this erro "unspecified error microsoft jet database engine" even though i am an administrator on my local machine.
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Sep 16, 2011
this is my code for adding users in my database but it has an error on the INSERT INTO statement.here is the error: Microsoft office access database engine: syntax error in INSERT INTO statement.
vb.net
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim conn As New OleDbConnection(cn)
Dim check As Integer
[code]....
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Jun 22, 2009
have this code to connect to local server:
[Code]....
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Aug 27, 2010
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
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May 29, 2009
i should say hi experts :D . Help me with this pretty code :)
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
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Apr 21, 2008
I want to move my programs and the database to another computer and hard-disks. It looks to me as though I nearly have to re-create the controls and rewrite some of the code to make it so the programs still work after the move. At least with ODBC all I would change was the DSN definitions external to the programs. Is there an easy way to move or rename a database without loads of work?
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Mar 30, 2008
I am trying to copy a table from a network database to a local database. I used DAO and could check if the network table existed using a function that tried to assign a TableDef object to the table in question. If there was no error then I assumed that the table existed and the function returned true...Or it would error out and return false.I could then proceed with the copy or not as the case may be.I am converting the code to ADO.net and need to know how to check for a table. [code]
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Sep 20, 2011
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?
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Jul 22, 2009
I need to programmatically add a row to a MS Database.How is this done?
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Feb 25, 2011
I don't actually know if I can use any XML file as a database that I can edit and make some changes to it using vb.net 2008 and save them. Because I'm working aboard a war ship and we have a central automatic system to control all the internal communication using standard telephones. to reprogram the extinctions we used to have a MS DOS program and it's so old and now it's totally lost and not found and after a long searching I have found a file that could maintain the extensions and reprogram the system but it's an XML file.
[Code]...
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Jul 10, 2008
I'm using Visual Basic 2008 Express Edition. What I have is an Access database that will have several tables. What I want to do is connect to the database, enter the name of a table in a text box and query that table. The code that I have now is: [Code] I'm not sure how to modify this code so that tablename = whatever I type in the text box.
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