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]...
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?
I have an Access database with some table and some queries.Here you see one query which returns 2507 records:I also added this database to a vb.net project.However, if i try to fill the datatable of the query with the specific tableadapter, the datatable stays empty. Also when I click the query in the dataset and choose 'preview data' I get none of the 2507 records:Any idea why he won't load the records into the dataset?
View 2 RepliesI 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.
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?
View 6 RepliesThe 32 and 64-bit versions (of the ACE OLEDB Provider) have now been released to support Office 2010:
View 2 RepliesI 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?
View 5 RepliesI'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"";"
Is this possible programmatically? Getting the names of stored queries or checking if a query with a specific name exists?
View 3 RepliesI 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.
View 1 Repliesicant 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]...
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]....
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?
In .NET, Is it possible to run a nested query from two separate Oracle databases?
[Code]...
Ultimately, this is an effort to overcome an "ORA-01795" error from using an "in" statement with over 1000 items in the conditional list, without having to break the query out into multiple "OR value IN" lists.
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 created a database and table programmatically with this [code]...
View 4 RepliesI'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]
View 1 RepliesI 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
View 4 RepliesI 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.
View 1 Repliesi'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]...
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]....
I've written an application and I'm trying to utilise a database behind it. I've created a mysql database, and table which all appears to work correctly. I appear to have connected to the db correctly too. And hit a bit of a brick wall. As a side-note, within Visual studio connected to the database using the add data source wizard, I then dragged and dropped my db table's column onto my form that intends to display them all (6 textboxes, including primary key) and that now displays the first record of the table. It confused me, because i did this as soon as I had setup the database with no visual basic code assisting, so there wasn't even a connection string?!
One functionality i want to have is to press a button and cycle through the table's records using the form by the unique id, how would I do this? I'm essentially asking how can I enter a number in a textbox which would then return me the relevant primary key and data attached to that record.
I have a rather complicated application (for me anyway). I have a word template setup with text controls. A web app with ASP controls and vb backend code binds data to the text controls using an xml file.
[Code]...
I'm using oledbdataadapter for query lets say i have a fields Firstname, Surname, Location, Gender
Firstname| Surname| Location| Gender
Angel David Alaska Female
David Leonard Alabama Male
Michael Reeves Indiana Male
i want to filter data so that if I put a keyword %david% and select combobox as "MALE" it will search david on the first three fields and return
David Leonard Alabama Male
Is it possible to create database queries on the fly with VB?
For i = 0 To (UBound(WeekNo) - 1)
For NLoop = 1 To 50
WeekRow(NLoop) = WeekSinceLast(i, NLoop)
Next
Next
I want to write each WeekRow to the database for each week (= i). WeekRow contains 50 elements, each of which needs to be placed in a separate field.
So, can I generate a SQL query that is constructed on the fly? If so, how do I go about it?
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].....
How do you store data in the access database and also to retrieve it? and also a search engine for the database?
View 1 RepliesI have written a program that queries an sql database displays it in a detailed listview, no problems so far. The only problem I am running in to is when I got to print the listview. When I do a regular printdocument.print() It prints out the listview exactly how I have it set up to do so. Which is a title , then column headers, next comes the listview, and then a total of some the columns. When I do a printpreview everything looks great. When I click the print button within the printpreviewdialog only the Title, Column headers, and the totals print. [code]
View 7 RepliesI have two Access database, say database One.mdb and Two.mdb. I want to use VB2005 to export tblCustomer from One.mdb to Two.mdb, and replace the existing tblCustomer in Two.mdb, during run time. I basically want to simulate the export function that is available in MS Access (which can export one table from one Access database to another) with VB2005 during run time. I can think of a way by querying the table to a dataset and then delete everything on the other database before filling the table in that database with the dataset
View 1 RepliesI 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 Replies