Move Queried Data From One Database To Another?
Nov 11, 2010
I have two databases, d1.accdb and d1b.accdb (So I have two connectionStrings). In both of these databases there is a table called Postings with exactly the same fields. All i want to be able to do is query the Postings table in d1.accdb for all the records where the users name is xxx. I then want to move all that data to d1b.accdb. I found another thread that was started in like 2007, and tried to follow their instructions, but cant seem to get it to work. Here is the code I am using:
[code]...
When I run getUserPostings(), i get a OleDbException saying invalid argument. Does anyone know how to fix this? or perhaps know another way to do this?Once i get this to work im guessing i would just add "WHERE UserName = 'xxx'" to the end of the OleDbCommand Strings.
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Oct 3, 2011
I am new to VB/VB.net and i will really need help in developing an application with VB.net and to be able to access the information via sms query.
[Code]...
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Dec 5, 2011
I made this procedure re-use a select query:
[code..]
And I use it like this if I would want the selected value placed in a textbox and it works fine
[code...]
However if I want the value to be passed in a string like so:
[code...]
The string ends up having an empty string value. How do I assign the value I queried to that String?
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Mar 12, 2012
I'm faced with a (fun, actually) data mining problem; I have raw ASCII files from instruments, and I want to move that data (~400 GB) into a database, then be able to run various algorithms determining correlations of time series, etc. I would like to write the mining algorithms in Visual Basic (.net, VS 2010 right now), and be able to do visualizations with VB code I have in hand.On the nature of the data: think of a set of several thousand devices, each recording a measurement at a given interval - so I'm talking time-series vectors. It's not more complex than that - though I may have vectors with holes, etc. - not sure what problems of that sort lurk in the data.I spent today re-acquainting myself with VB.NET's interface to (in one case) a Microsoft Access database. What used to be fairly simple - DAO I think it was - involved tables, recordsets, etc (and that would likely be fine). Now I seem to be required to have a weird variety of generally useless objects, e.g. 'adapters', 'datasets', etc. The problem is that I know exactly what I need, and all this extraneous stuff just gets in the way (certainly in coding complexity and opaqueness, and likely in efficiency as well). If any of these mechanisms gave me a kind of virtual access to the entire dataset, and let me control caching parameters, etc.it might be great, but I found nothing along those lines. It seems like useless bloat, though I suppose it must be useful to someone.Anyway, I tried a number of different approaches, and none seemed at all aimed at what I need to do: efficiently do math on a large dataset. I can't believe I'm the first to have this problem, but I can find no useful wisdom out there. I'd be comfortable with pretty much any underlying database mechanism: MySQL, SQL Server, MS Access, but ideally something generally SQL based (I may eventually have to transition this entire system to draw from a client's SQL database, though that's not an overriding concern now). Other than that I want simplicity and efficiency. I thought my old ODBC techniques would work, and to some extent they do, though modifying tables seemed to have bizarre problems (no errors, but not modifications either).
I do have a fairly aggressive deadline to show some algorithm results, so my focus in the short term is to get something reasonable working *in* the short term - in other words, it's less important to me to pick the 'fastest' relational database than it is to pick a database that lets me focus on coding the algorithms, not working through tedious data access coding. If this db could be any smaller, I'd have tried to do it all 'in memory' at least for proving concepts; I don't want to have to learn an entire jargon and approach just to be able to retrieve data points.Perhaps I'll need to bite the bullet and just write something myself, a .dll perhaps just to save and restore large time series vectors. It seems a bit frightening to me that one would have to do this in this age, what with all the database systems out there, but I don't have much time to work through arcane interface logic.
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Dec 14, 2009
In the following code example, I am querying WMI for Memory Modules and adding the information to a TreeView component.
VB.NET
Dim Scope As New ManagementScope("
ootCIMV2")
Scope.Connect()
Dim objectQuery As New ObjectQuery("SELECT * FROM Win32_PhysicalMemory")
Dim Searcher As New ManagementObjectSearcher(Scope, objectQuery)
[Code] .....
When I run the code, I expect to see a Parent Node named System Memory, and two Child Nodes for each memory module installed. I do get the appropriate Child Nodes, but I also get an extra Parent Node and I can't seem to figure out why:
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Feb 12, 2012
[Code]...
what mistake i am doing here while execution
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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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Nov 2, 2011
I have this if statement, which returns the result as a AsQueryable to an anonymous type:
If (signature = "") Then
testResults = (From TRTable In context.TestResults
Where ((TRTable.Art_no = currentProduct) And (TRTable.Server_time > startDate) And (TRTable.Server_time < endDate))
[code]....
I can't seem to figure out why it isn't working, it was working without the if statement, but I need that functionality.
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Jul 16, 2009
Here's the situation. Due to the design of the database I have to work with, I need to write a stored procedure in such a way that I can pass in the name of the table to be queried against if at all possible. The program in question does its processing by jobs, and each job gets its own table created in the database, IE table-jobid1, table-jobid2, table-jobid3, etc. Unfortunately, there's nothing I can do about this design - I'm stuck with it.
However, now, I need to do data mining against these individualized tables. I'd like to avoid doing the SQL in the code files at all costs if possible. Ideally, I'd like to have a stored procedure similar to:
[Code]...
Is this even possible in SQL Server 2005? Alternate ways to keep the SQL out of the code behind would be welcome too, if this isn't possible.
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Oct 26, 2011
I have a datatable that is queried from SQL Server database, and it has a numeric column and I want to format it to "###,##0" format for readability reason. I tried:[code].....
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Sep 21, 2011
i want to move through the database searching for data.i know that with vb and access we used movenext movelast, BOF ,EOF that type of thing.now i am using sql and VS2010.
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Jun 21, 2010
I have an access database, which I connect it to the form I have text boxes which displays info from the fields in the database. I have created a "Next", and "Previous" button, this is my code
[Code]...
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Jan 3, 2012
I'm using VS2010 with a mdb database. I would like to open a new form and fill it with the last added data in the database. I tried to use the "BindingNavigatorMoveLastItem" from the tooltip toolbar but i can't get this to work.
Is there anyone that can tell me the easy way to move to the last record in the database?
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Mar 14, 2009
I am trying to ping a list of IP's that reside in a dataset
[code]...
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Aug 7, 2010
SQL Server has a Data Type of "Float". Visual Studio has a Data Type of "Decimal". In other words, if I have a variable in a VB.Net app that is defined as a "Decimal" ...can I move that value into a SQL Server Data Table column defined as a "Float"?
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May 22, 2010
A VB.net program reads the queue and calls a stored proc in SQL Server that processes and then inserts the message into another SQL Server table and then deletes the record from the oracle table.
We use a DataReader to read the records from Oracle and then call the stored proc for each of the records. The program seems to be a little slow. The stored procedure itself isn't slow. The SP by itself when called in a loop can process about 2000 records in 20 seconds. But when called from the .Net program, the execution time is about 5 records per second.I have seen that most of the time consumed is in calling the stored procedure and waiting for it to return.[code]...
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Jun 21, 2010
I have a database I am creating with about 50 users over a network. There are about 6 groups of users and these users are spread across 10 branches. I want to block/allow users from particular forms and views. For example I want branch users forms to be filtered by their branch number but depending on the group they are in they can only see some forms. i.e. 50 users, 10 branches, each branch has about 5 ppl of where 1 is in group A and 4 are in group B. I want all users that belong to branch 1 to see the information they enter, but Group B enter data but cannot approved or delete, and group A can enter, approve and delete. So then. On my login form I have the user type his/her username but the i want LEAVE function to update 2 textbox where I have named GroupName and BranchNo. Basically to run a query and look for the username and return in one textbox that user's groupname and the other textbox the user's branch no. This information will be used to filter forms and block the user from certain controls. This is the code I have so far but still can't figure how to display the results.
Private Sub UsernameTextBox_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles UsernameTextBox.Leave
'Make Connection to database
[Code].....
It keeps highlighting the BranchNumber and UserGroup and giving error "Value of type 'String' cannot be converted to System.Data.OledbCommand
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Dec 4, 2009
I am trying to archive specific rows of data in a table to another table, then delete the data from the original table.I am using Visual Studio 2008 in Visual Basic. My database is written in SQLServer 2008 Express. Example: IF column 'ID' has a row value of 'SomeValue', I want to move that row to an archive table and delete the row from the original table. Here is the code I have been working with:
Dim instance1 As DataTable1
Dim instance2 As DataTable2
Dim row As DataSet.Table1Row[code]......
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May 23, 2011
I am trying to move data from one form to another. I am working in VB.net 2003. My database is Access 2000.
Private Sub MenuItem6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem6.Click
Dim Form4 As New Form4
Dim DataForm2 As New Form2
[code]....
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Sep 17, 2010
I got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
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Dec 14, 2011
What I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
[Code]...
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Jun 9, 2011
All this code does is remove the checked items. I want to remove it from one listview box and transfer it to another. Is that possible?
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
With ListView1
[Code].....
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Jun 22, 2010
what I am doing wrong in the coding below:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Sep 24, 2010
I have a screen that shows some customer data. I need to be able to click a command button and have the name, address, etc put on a MS Word 2007 document. This is my code so far.[code]
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Aug 19, 2009
i connected a MS Access Database using data source in Visual Studio 2008. im using the following code.
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
#End Region
[Code]....
when i click on load its working and showing the first record from the database. when im clicking at btnNext its not generating any error or warning in visual stduio 2008 and the text fields are not showing the next record?
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Nov 9, 2010
I have two listboxes next to each other with buttons in between (<< , < , >> , >) I can get the these buttons to move the lines of code to back and forth from the listboxes, but now I need these buttons to also extract the cost of the item and add the cost to a total cost label.[code]...
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Dec 9, 2011
I am currently working in Visual Basic 2010 with a webform. I created an SQL database inside of Visual Basic and I'm trying to make the insert command move values from the textboxes into the database.
[Code]...
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Feb 27, 2012
I have two MS Access database; Mydb1 and Mydb2. I would like to do the following:
1. Copy all records in table (MyTable1) from Mydb1 to Mydb2. MyTable1 also exists in Mydb2
2. Move all records in table (MyTable2) from Mydb1 to Mydb2. MyTable2 also exists in Mydb2 which needs to be flushed.
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Jan 6, 2012
how do i copy and move the entier contents of a directory to another ussing VB.net then also delete the files from there original directory?
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Dec 26, 2009
I have three listboxes in an array and on form_load the listboxes initially select the fifth item in each listbox:
Private Sub frmSample_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
For i As Integer = 1 To 3
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