Efficiently Load A Microsoft Access (Jet) Database Table?
Jun 21, 2010
I'm attempting to create and populate a table in a new Microsoft Access (Jet) database using VB.Net 2008 Express under Windows XP Pro SP3. The database and table are being created properly, but loading the table proceeds VERY slowly. When I am loading the table, no complicating factors that might impact performance, such as indexes or table relationships have been defined. The table to be loaded is made up of relatively short rows consisting of three single byte columns, and one (four byte) integer column. I am loading approximately 16 million rows, and this is literally taking hours, while the same data can be interactively imported into Microsoft Access from a .csv file in minutes. I am trying to batch load the rows, 64K rows at a time, in order to avoid the overhead of individually transacting/committing each row individually, but suspect that I must not be doing something right. Key code that I am using for this process is provided below.
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Jun 22, 2010
sample code or project on how to load a data of a particular table in access database in to a data grid view
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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;")
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Oct 23, 2009
I get a Syntax Error with the following code"ALTER TABLE receipts RENAME COLUMN payees TO payee"what I am doing wrong
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May 25, 2009
How can I achieve that? I usually use SQL Query in SQL Server, but it can't work in microsoft access table.
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May 3, 2012
I have vb .net windows form application that I want to connect to Microsoft access database using "Microsoft DAO 3.6 object library". My problem is that when I go to Project tab -> Add reference -> COM tab, there should have been "Microsoft DAO 3.6 Object Library" on the list, but for some reason It's not on the list. Then I googled, and found out that the location of "DAO360.DLL" is "Program FilesCommon FilesMicrosoft SharedDAO". After clicking on Browse tab, I browsed to that location, and I guess I added reference on another way.This is the code that I used before for connecting to Access, but for some reason It doesn't work this way on this PC.
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Sep 9, 2010
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.
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Aug 17, 2010
I have a Microsoft Access database that I connect to with the Jet Database Engine, using VB.NET. I want to programmatically get all of the column names for a particular table [code]...
Is this possible in Access? If not, what are my options for getting the column names?
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Nov 19, 2010
can anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
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Aug 30, 2009
I want to add a new table in my accdb and copy the content tfrom an existing table into the new one.
Is there an easy way to do this?
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Jan 19, 2011
im just starting to work with some database stuff, and ive got data binding done but im a little stuck with filtering. Ive got a test project, which has
-- listbox (bound to column 2/firstname)
-- Combo box (Has items added, with the same names as the items in colunm 3. so it has 'RPG' and 'Puzzle')
Now what im trying to do is when the item in the combobox is changed say to 'RPG' only items in the db which have 'RPG' in the surname column are displayed in the listbox. Been Google'ing and reading but all i can find is examples relating to a dataview and i cant get them to work/adapt to my situation.
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Dec 14, 2011
I am trying to learn how I can enter data into a Microsoft Visual Basic 2010 TextBox on a form and when I Tab to the next TextBox, the data from the first TextBox is automatically appended to a Microsoft Access 2007 table. For this question, no other controls or objects are necessary.
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Jan 2, 2012
I made a Microsoft Access Database on my old computer and it worked fine with vb 2008When i try to go to my form containing the tables from Microsoft access, I get this message
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Jan 13, 2011
I'm developing a program utilizing an Access database and Visual basic. I'm having a problem saving the data I'm adding to the database. I'm entering the data into the database table with text boxes and making a new row and adding it the the table:Database2DataSet.Tables("").Rows.Add(newRow)
I have a grid view for the table, and the new row is added to the table, showing that I'm getting the new information into the table. However, I'm trying to save this new information to the database so its there after I close the program. I've tried using the following but none have worked so far.
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Jul 15, 2008
I am taking Computing at A Level and need to create a solution for a business.I have thought of my solution which is a log of all the cars that go out on test drive for my dads motor company, i have created a database in Microsoft Access and have saved it as the usual mdb file. i have then imported this into the project and would like to use it.I have created a login form which i would like to use along side the database in the sense i would like it to check when a user enters their name and password for those two things in the database and respond accordingly. I also have created forms in which employees would enter information and then click the submit button, i need this to then place the information into a database as records under the right headings.I have tried using the program and play about a bit but i just can't understand it easily, even when i search for help i have trouble understanding what it all means.If someone could help me that would be great cheersLongy1259
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Aug 19, 2011
I'm using the following code to import data from a text file into an existing Access table:[code]
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Oct 15, 2011
Public Class Form1
Inherits System.Windows.Forms.Form
Dim con As New OleDb.OleDbConnection
[CODE]...
ABOVE CODE GIVES THE FOLLOWING ERROR WHEN I RUN IT.....:-"An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll
Additional information: Exception has been thrown by the target of an invocation."
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Oct 5, 2009
I am using VB.NET 2003 and i want to export some data from a microsoft access database into a multidimensional array.
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Dec 16, 2011
It is my first time to code vb2010 with an application of database. I am doing my inventory system project and i do not know how to start my project. Can somebody help me to find a tutorial in visual basic 2010 and New Microsoft Office Access 2007 Database? I would like to use vb2010 and New Microsoft Office Access 2007 Database... Is this possible to use for my project?
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Apr 3, 2011
How I am going to show the data from the database into richtextbox?
I can connect and load the database into the richtextbox to show. But the question is that the rich text box only show 1 record. But there 3 records in the table.
My database contain 1 table name "Staff". The field: "Staff ID, Staff Name, Staff Gender, Staff Position, Username and Password".
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Feb 5, 2010
What I need to create Microsoft Access database using VB.NET? I was looking for microsoft ado ext. 2.7 for ddl and security but I could not find anywhere.
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Jan 13, 2010
i have a custom SiteMapProvider which I populate from a database. I also have a custom SiteMapNode which has to be constructed with a custom Page argument.[code]Should I return false in AuthorizeCore() to have everything work according to default authorization protocols? (What are these?) Or should I throw my exception.SiteMap.CurrentNode is Null / Nothing (in AuthorizeCore()) if the page which is requested is not accessible to the user (obviously). How should I change my implementation? I want to keep the functionality that the Page objects are only loaded once, so I need to store them somewhere.
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Mar 30, 2009
I 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
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Jan 17, 2012
I am newbie in Visual studion 2010. May i know how do i setup the connection for a mdb file. Below is my code and i have encountered an error. the error message is "A first chance exception of type '[URL]' occurred in WindowsApplication1.exe".
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Apr 18, 2012
I want to make a database of my media collection for my application. I want to create a library for that. Now what i want is that user should be able to add his own song to the database. How can i access mp3 files metadata in my database? How to update that database using my application.
PS: My application is a media player made in Visual Basic using Visual Studio?
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Aug 7, 2009
I'm using Visual Basic Express 2008 (VB.NEt). I've created a project which
connect to a Microsoft Access Database (OLEDB) & displays the records using textboxes in the windows app.
I need to add a button which exports the database to a fixed length text file. Does anyone know the code I would use to do this?
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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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Dec 25, 2010
i hope this is not a stupid questioni need to rename microsoft access database in APP_Data folder using ASP.Net - VB.Net
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Apr 15, 2009
I am looking to select all the tables from a microsoft access database. I just need the SQL statement i think, i can connect to the database that is needed.
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Mar 22, 2011
I 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.
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