DB/Reporting :: Access Database Decimal Type Error
Jun 28, 2008
I am trying to insert a variable in Decimal type into an Access table. When I use "decimal" field with 0 digits after the decimal separator (,) my program works properly. However, when i use the field with 2 digits after the separator I get a "Data type mismatch in criteria expression." exception. This happens also when I try to update the table. The debugger shows me that my variables contain the right values but the update or insert command gives the error.
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Sep 29, 2008
How can I get information what data type a certain column is. (Integer, string, memo,...)
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Feb 8, 2009
use the following code to create a database in ms access
Code:
'reference: Microsoft ActiveX Data Objects 2.8 Library
'reference: Microsoft ADO Ext. 2.8 for DDL and Security
[code].....
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Sep 23, 2008
Trying to make a vb.net program that is able to read values from an access database and pass them into some data sets. Here is the code I have so far, with the error line between the two dotted lines:
[Code]...
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Apr 20, 2010
When I click on a header (Price) to sort the rows by that column, I get an error Object must be of type decimal.
I'm thinking that I'm encountering a new row without any values that's why this error is being generated.
I'm not sure how to intercept this error or fix it for that matter....
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Jun 22, 2010
Im trying to set one variable equal to another but it says "No default member found for type 'Decimal'" what does that mean?Both the varuables are deciamls, one is a regular decimal that I declare in the sub and another is an array that I declare in the class. The line is:
tempx = xo(i)
this is in a for loop with i as the variable.
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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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Jul 7, 2010
I have a field in an access database with decimals in it. I am using ADO to read in the data and are trying to assign it to a textbox in a form. This works fine when its a whole number. But it doesnt seem to work when its a decimal for some reason.
I have declared the variable i have assigned the access field to as a double, but when i set up a test textbox which i point the variable at and times it by 1000, it doesnt work. Works perfectly when i change the access field entry to a whole number though.
This sounds like im not using the right syntax or something.
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Oct 29, 2009
Well here I am again, could really use some expert eyes on this. I've got an update statement for access 2007 and when I run it it's giving me a "No value given for one or more required parameters." error. I've spent at least 2 hours on this now and searched all over the place and none of the suggestions I found are fixing it. I've got an insert statement to the same table that works fine, I took this same syntax for the update statement from another project where it was working perfectly. I've verified the spelling of the table and column names, As best as I can tell there are no reserved keywords being used and I've eliminated any spacing from the names. I've even tried updating a single row with no variables, just like for like data directly from the table and it still throws the error.
Code:
Dim DAEdit As New OleDbDataAdapter
Dim update As New OleDbCommand("UPDATE ActiveContracts " & _
[code].....
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Jul 15, 2008
I have an Access XP database with two linked tables and a maketable query. I need to first run the Query through VB 2005 and then get the data from the resulting table created. But I get an error when I run the query as follows. I am getting the SQL Select statement from the SQL view in MS access after I create my Maketable query So it should be ok. I am saving the select in a hidden text box on my form.The query text :
SELECT [SWX-Seats].[Asset #], [SWX-Seats].Account, [SWX-Seats].Product, [SWX-Seats].[Seat Id], [SWX-Seats].[Serial #], [SWX-Seats].Qty, [SWX-Seats].[Entitlement End Date], [SWX-Seats]![Entitlement End Date]-[NS-Seats]![Exp Date] AS DaysDiff, [NS-Seats].[Exp Date] INTO
[code].....
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Sep 29, 2010
---3 laptops running same VB.NET application locally AND access/share same database located on one of these machines. Is this Possible? an easy way? ---OR would the best sollution create a website with database ?
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Aug 21, 2008
I'm building an aplication with an MS Access database behind the scene. In many of my forms I'm gonna use DataGridViews to show data from the database, not an entire table but data based on manually built queries. So, I have few questions without answers, by now. Solutions or 1. I haven't decided how will I bring the database into the project: from the menu -> Add New Data Source, or within the code, at runtime. I still don't know which one's best or why.2. How exactly can I execute any SQL query (SELECT, INSERT, UPDATE, DELETE etc) on my Access database from my aplication?
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Dec 3, 2009
i have an ACCESS database with 3 columns. I establish the connection with the VB 2008 Express and put the data in the form but i don't know how to add the text of a textbox in the database.
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Aug 29, 2009
I installed Visual Studio 2008 and Office Enterprise 2007 in my new computer.I made some codes for a data reader to get data from an Access dabase. On the step where it will open the connection an exception appeared which says "Microsoft.Jet.Oledb.4.0 provider is not registered on the local machine".
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Aug 27, 2009
I'm trying to query an access database, but my query results only display the first cell of the query results.
For example, if I select 3 columns, 5 rows, only Column 1 Row 1 is displayed. Someone mentioned something about EOF but I can't find EOF code for OleDB. Should I be using another type of connection?;
Code:
Private Sub btnGetReport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetReport.Click
Dim StartDate, EndDate As Date
[Code]....
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Mar 15, 2008
I wanna create an access database programmatically.How should this be done?Do you recommend that I do it via code?I don't know how to create an access 2003 compatible file at run-tim
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Aug 2, 2009
I'm trying to create a database driven application using VS 2008. I want my database to be generic, i.e it shouldn't rely on the existence of MS Access or similar application. So how do I create such a database, add tables , values..etc?
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Jul 16, 2009
I need to update a database app written in VB, Visual Studio 2003, using an Access Database.Currently: Customer has 4 users, local network. Access Database is 30MB, about 50 tables.Wanted: Customer is opening new offices, and wants to connect to the database via the internet. There will be 10-15 users.App background: I have all data access via OleDbDataAdapters and one OleDbDataConnection.There are 4 DataSets: Global, Lookup, Reports, FormSpecific.
I have one Private function: FillTable:
Private Function FillTable(ByVal TableToFill As DataTable, _
Optional ByVal OleDbAdpToUse As OleDb.OleDbDataAdapter = Nothing) As Integer
' fills the table by using OleDbDataAdapter.Fill(aTable)
[code]...
All is working well.What I Need to Do:I think I need to migrate the Access Database to MS SQL. What I Have:Visual Studio 2008 Professional. I have started the MS SQL walkthroughs. I did the �Create a Data Connection to the Northwind Database� walkthrough, and connected via MS SQL Server. I cannot find where I can modify the SQL Commands. If I convert my Access Database to a MS SQL Database then can I
1) Just update the OleDbConnection, so it connects to the MS SQL Database (not the Access database).
2) If I cannot do #1, what do I need to start with?
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Mar 11, 2008
I'm using Access 2001 and my Database is structured as follows:
Chance(Number, Detail, Action, Amount, Owner)
CommunityChest(Number, Detail, Action, Amount, Owner)
[CODE]........
I'm making a Monopoly Game which i'll make sure i post up here when done, I'm using Visual Basics 2005 and OLEDB Connection, i know how to work all that but i have the following scenarios to find SQL for.
Upgrade Property - I need to use the Update Query for this. A PropertyName is selected from a list box and someone then clicks to upgrade a property.
Properties.HousesOwned should have it's value raised by 1 Where the player owns all 3 sets. The Houseprice should then be took off the Players Money.
Downgrade Property - I need to use the Update Query for this. A PropertyName is selected from a list box and someone then clicks to downgrade a property.
Properties.HousesOwned should have it's value lowered by 1 (until it gets to 0) Where the player owns all 3 sets. The Houseprice should then be added to the Players Money.
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May 30, 2009
I'm trying to update an MS Access database, but that doesn't seem to work. I do NOT get an error, but nothing changes in the database.
Code:
Dim myCommand As OleDbCommand = Nothing
Dim strUpdate As String
strUpdate = "Update Settings Set Data = @Data Where Name = @Name"
[Code].....
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Dec 13, 2010
I'm new to Visual Basic. I came across a random number generator tutorial. Got it working fine and then I thought, Is there a way to get it to access a database Here's the thing
1. Generate the random number.
2. looks at the database and finds the corresponding id number.
3. Takes the field for that number and enters it into a text field in the program.
So for example the number generated is 32. Then the program looks at the database and looks for id number 32. then takes the text in line 32 and enters it into a textbox in the program.Now I have my database and the program. But just can't seam to figure out how to get the two connected like I want. I have looked and searched but have found nothing like it I am using Visual Basic 2010 and Access 2007.
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Aug 18, 2009
I'm working on a VB.Net Windows form that is supposed to manipulate an Access Database. I can Already read data from the database (placing them in a combobox) using the following:
Code:
Private Sub Form2a_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
OpenFileDialog1.FileName = ""
OpenFileDialog1.Title = "C# Corner Open File Dialog"
[code]....
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Mar 20, 2011
I am taking my first quarter of programming and am having a VERY difficult time understanding jagged arrays. At the moment I am working on a project that is using two two dimensional jagged arrays
If IsNothing(g_decChargesArray(g_intActivePatientNumb er)) Then
numVisits = 0
Dim decTemp(g_intActivePatientNumber) As Decimal[code].....
The line in bold is the only way I can think of to pass the amount of decCharges into the array g_decChargesArray.
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Mar 3, 2011
i've developed a VB Net Application, that works with an access (2003) db. Now i've send it to a friend on mine with a new pc 64bit with win 7, and it doesn't works, more or less the error is: Quote:
[Code]...
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Jan 11, 2009
I have two tables in the MS Access 2003 database " SAMPLE" and they are : 1. INFO 2 INFO2Now i have created a form in VB 2008 express edition with the text boxes: Name, Age, Occupation.he tables INFO has - Name, Age as columnsAnd INFO 2 has - Name, Age, Occupation.All i want is when the user presses the ok button, it should add the name & age to INFO and also add Name, Age Occupation to the INFO 2 Table.
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Feb 1, 2012
I've been googling to find a guide on how to access a database with visual studio.I cant find anything complete or up to date. I should point out that I dont have a great deal of experience with SQL.I'm not really 100% sure where to start. Most of the guides I've found tend to assume your accessing an existing SQL database and I need to set one up from scratch. I'm not sure if I'm even setting SQL server up correctly. point me in the right direction on where to get started. A good, up to date tutorial would be great.
For my purposes the SQL database will only be written to from the local machine but there will also be another machine writing to this database.I'm currently using Visual basic Express 2010 and SQL Server Express 2008 R2, mostly because they are the most recent when I googled it.
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Dec 8, 2009
I have developed a Windows Forms application using VB.NET and MS SQL Server 2005 Express Edition. My database name is 'AC'. I do not want ANY user, SQL Server or Windows authenticated, to access, read, write to, update, drop or take backups of this database, except this login 'Adel'. So my connection string looks very similar to:[code]What configurations should I make in the MS SQL Server Management Studio 2005 Express Edition to 'Adel' login, 'AC' database, and all other logins to accomplish this?Given the following:I do not own the server; my client owns the server. They have a domain set up (LAN network).They have ASP.NET applications running using other databases on the same server. However, these applications have nothing to do with my database 'AC' or login 'Adel'.Some of their applications do not specify 'User Id' in the connection string; they use 'Integrated Security=True'.
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Aug 4, 2009
Does anyone have any code on how to saves the following textboxes to a access database
Userid (on form1)
Reel no (on form2)
Reel weight (on form2)
[code].....
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Jan 25, 2009
Usually, to go through my Access Database records in VB, i used the "Data control tool" in the older versions of VB, but i cant find it in VB2008, is there anyother tool that allows you to scroll through Access database records, on VB 2008?
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Mar 30, 2010
I use the following code in vb.net to search across several Access database fields, which works well, is there a way to find out WHICH field had the search data in?
[code]
Public Function Incomming_Number(ByVal strNum As String) As String
Dim oConnect As New OleDbConnection
Dim sql As OleDbCommand
[code]....
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