Best Method For Transferring Data Between Two SQL Databases
Jun 6, 2011
I'm developing a project for gathering customer feedback using a Samsung Q1 Ultra, a cheap touchscreen PC. The project consists of two parts: a PC based application that builds the survey and stores the info on an SQL Server, and a survey viewer on the Samsung device which downloads survey data from the SQL Server and stores it on a SQL Server Compact 3.5 database.
My question is, how best can I transfer survey data from the SQL Server to the handheld device's database? Writing a tonne of code to copy data from one database to another seems overcomplicated - is there a handy function or somesuch that I can use to copy data from identical tables on these two separate databases?
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Jan 7, 2010
I have the following code in place: Protected Sub btnBuy_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnBuy.Click Session("ShoppingList").add(New OrderInfo(txtQuantity.Text)) Server.Transfer("ShoppingCart.aspx") End Sub
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Jun 12, 2011
The title of this thread perhaps does not explain my problem correctly.Actually i am developing a financial software for a company.The software is similar to a banking system. The software is being developed using VB 2008 and SQL Server 2008.The company has its branches located at different locations. They are having a centralized SQL Server at their Head Office.The branches are connected to Head Office using a VPN.Now what we are worried about is when the VPN gets disconnected.For that we will be having a SQL server installed at each of the branches.When VPN is connected the the details entered will be directly at the Head Office database,Meanwhile a program will be executed which will get details from the Head Office database at each of the branches in a XML file.When a branch gets disconnected from the VPN another program will get the XML details into the Sql Server installed at the branch. When the branch is connected again Another application will create a xml file from the local server and insert its details into the HO server.The sizes of the XML are reaching upto around 150 to 200 mb. I am using Dataset.WriteXML and Dataset.ReadXMl. I have tested this on my local machine it is taking upto 30-40 secs.I dont know how much it will take when the actual application is installed. How can i speed things up ? Does anyone have any idea on how i can do the whole process more smoothly and faster?
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Jan 3, 2006
I wanted to write a small piece of vb code to synchronize a few FoxPro dbf tables to SQL tables that having the same structure or at least a few fields that i selected. I had tried a code which I found on the net that running row by row and column by column to update the SQL tables but this code is too slow. In my dbf table it contains around 3000 records at least.
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Jun 17, 2011
i want 2 copy some part of one table into another but getting error @ this line
sqlCmd = New SqlCommand("insert into name_table(name) values ('" & ds.Tables(0).Rows(1).Item(0) & "'", sqlCnn)
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Jun 12, 2011
I'm doing a project that requires me to create a book ordering form. I have the books displayed in a listbox named bookselectionlistbox, and when a book is selected, it displays the price of that book in a label named bookpricelabel1. I have a button named addbutton that allows the user to add the book to the shopping cart. The shopping cart is in the form of a combobox named shoppingcartcombobox. Lastly, there is a receipt button that transfers ALL the books from the shopping cart to a seperate label called label3, not just the selected book. The last thing I need to do is have the price of each book also transfer to the receipt section. This needs to be done either on the same label3 on the same line as the book title, or on a seperate label that is adjacent to label3, I have temporarily placed a label there named label5. I am using a case statement for the bookselectionlistbox to say that when a certain book is selected, the bookpricelabel1 will display "$xx". I also have an IF statement under the addbutton label that generates a total price for all the books in the shopping cart, here is an example of the code I used for one of the books:
[Dim visualbasic As Decimal]
[If shoppingcartComboBox.Items.Contains("Visual Basic") Then]
[visualbasic = 55]
[Code].....
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May 18, 2012
I would like everything in listbox1 to transfer to listbox2. I didn't paste my whole project because it is messy and lengthy but I was able to re-create the scenario with this code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
bottom line, I want everything in listbox 1 into list box 2 when combo box = a and button is pushed. when I try to execute, only one or less go into the second list-box and the rest stays there!
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Aug 3, 2009
My assignment involves wrinting an airline reservation brogram where the user can hit a make reservation button and the user can then input passenger name departure city and arrival city, all of this has to print to a multiline textbox, the professor also wants a find reservation button and a cancel reservation button.
Public Class Form1
Sub get_data()
Dim passengername As String = InputBox("please enter passsenger name")
Dim departure As String = InputBox("please enter departure city")
[code].....
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Jan 17, 2010
How would I go about transfering data within textboxes on 1 page, to the same textboxes, but on another new page.
Basically, I already have coding that caluclates distance time, price per litre of petrol (it's a bus firm company application), and put's it into textboxes within a group box on my page. Basically I just want a bit of coding which will transfer this info, to different texboxes, but on a different new page, the idea is that I can then do fresh coding on that page without it interfering the coding on the current page.
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May 4, 2011
Visual Basic 2010.I excel in transferring reports on problems in formulas..[code]
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Mar 7, 2011
I want to transfer my data from one list box to an other and save the data and display it at the same time with the TIME, Name, and the Quantity. For example, if I have a movie ticket, and says I bought one ticket thats 10 dollars. If I did type all the calculations with tax it should be 10.10 for the 10% tax. This will show on first of my list box. Secondly if I press something like Enter, it will show that 10.10 number and also put it in the other lstbox. I have 3 list box. One to show the current transaction, one to show the history of them and the total amount of all transaction.
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Dec 28, 2010
I am new to ADO.Net and I mistakenly using the dataset as how we use recordsets in ADO., I know that it is possible to create a Datatable which will only reside in the memory and hold data. What I need to create is like this.
1. Create Datatable.
2. Fill it with sample data at least 3 lines.
3. Transfer the data from datatable to database (access,sqlsrvr etc).
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May 27, 2009
I have 2 forms in this application. One form is just a simple SQL statement that is generated into a grid. It displays columns/rows. From there I want to be able to click on a row and have the first column of that row transferred to another form. In the second form I want it inputted into a text box. So, the user doesn't have to copy the record back out of the form then open the other form and paste.
The form opening and closing is not the problem. The problem is getting the data to transfer from one form to another!! I am not sure how to do it.. I have only been coding in VB for a few days and no formal training. I am aware of global variables and would be willing to assign the data to a variable and then have it transferred into the textbox of a the second form.
I do not know how global variables work in VB. This is what I got so far............
'The user clicked the transfer button.
Dim obj As System.Data.DataRowView = grid.Current
MsgBox(obj.Item(0), vbInformation, "Selected Data")
[Code] .....
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Dec 19, 2010
I m working with a appliction in VB.net
I have a three forms .Menu form which i have set IsMdiContainer as true
Through this form I m opening a new form named " Query"
This form has two drop down and one textbox and some other controls
When user selects ths first dropdown (States)second gets filled with City
When use selects a city I wat to open a New form named as parameter.parameter
form has two textbox and user will enter the paramater and click the submit button.
I want the text of these two textboxes in My "Query" forms 's text box and I want the drop down as it is(filled with city and states)
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Jun 7, 2011
I have a listview and Contextmenustrip control. Listview contains one coloumb. How to transfer ListView data to ContextMenuStrip?
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Jun 28, 2010
I have written a VBA code in EXCEL that updates my tables in Access. The code is fully functionnal when I am entering new data but I don't know how to make it work when a data (primary key) already exists and that I need this data for another table. I would like to find a code in this format (DAO) :
If value exists in table Then
Return the value.code (not the value but the code related to this value)
else
.addnew
here is what I have tried but does not work:
Code:
Function Find_Last_EngineCode() As Integer
Dim cn_engine As ADODB.Connection, rs_engine As ADODB.Recordset, feuille As Worksheet, plage As Range, last_record As Integer
Set feuille = Application.ThisWorkbook.Worksheets("To_Access")
[code]....
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Apr 5, 2009
I have a psychology experiment that has users respond to specific text or pictures by pressing either a button for "similar" or a button for "opposite" and then the program records the time from the presentation of the stimuli to the time they press one of the buttons as the latency. I have the information ans some other data successfully exporting to a text document but would like to have just the latency data also go into an excel spreadsheet for easier analysis. Here is the code for one of my buttons that currently writes to the text document:
[Code]...
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Apr 16, 2009
I'm developing a management program for a driving school, where information about all students is stored and accessed.
The thing is, this school has got two branches, so I need some way for those two computers to share files with each other in order to keep a common database. I would like to use the same program in both computers, to keep simplycity to the maximum.
I know it's using TCP, but I haven't got the lesser clue of how i can achieve that. I've looked around, but I haven't found much of how to acchieve something like that. The files both computers would be sharing are text files.
About the IPs, I'm thinking of using NoIP or one of those to always know both IPs.
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Aug 23, 2010
I'm developing a program that handles money, and there is a pre-made excel spreadsheet that I am to be transfering data into specific cells. How can I go about telling my program to write specifc data into specific cell numer in excel? Also, how can I get my program to write into specific areas of a MS Word Template (my program will generate letter with the same template just different names/addresses/valus)?
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Apr 30, 2011
Currently I have a list of items that are based off of a structure of information. I have been putting off the saving function of my program until near the end to make sure that I have all the elements before I start worry about what needed to be saved. I am not asking for code, more for direction. Is it possible that I can load and save data directly to a database rather than have to hold it all in memory as a list? I have never worked with databases in vb.net, and wonder if there are places that would help with this under the requirements I need.
My program saves recipes into a structured list. All the listboxes and forms use the list to populate the correct data on them. I know I could just save all the data each time the program ends into an XML file, and load it each time the program opens.... but is that the best way? Can it be done with a database without having to constantly save or load a file?
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Feb 5, 2009
I collect two sets of data from two different databases, This data is now in two collections. I then join/append the one collection to the other and then put it in to a list view.I really would like to order this list view by the first column without the click event.To make this even harder the First column contains Data that is DateTime and i have found that it orders the items by the day number and not the months or years or time.I have found one way but it then cause's me further agony when doing some checks upon the data within the listview later in my code. This answer is to rearrange the format to "yyyy-MM-dd HH:mm:SS" then using the listview.sorting = sortorder.
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May 22, 2009
Does anyone know how to, or if it is even possible, to add data from two different databases into one datagridview? For instance, the following is my code for one source of data, pulling from Access.
[Code]...
PartNumber from the first dataset and ItemNumber from the second are supposed to be alike. What I need in my datagridview is all the info from the first dataset and then for each row I need the description from the second dataset, based on the PartNumber that is listed for that row.
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Apr 20, 2009
I need to get data from 2 databases namely cable and History. The results obtained from it will be display in a datagridview. MyCommand is a sql statement i wrote. However,i have errors in it. The codes are as followed.
Dim dbset As New DataSet
Dim data As New OleDbDataAdapter
data = New OleDbDataAdapter(MyCommand)
[code]....
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Sep 21, 2011
I'm doing a little project on the side and was wondering if it was possible to enter data from text boxes on a vb form into two different tables in the same database? [code]
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Oct 27, 2011
I have used two database (1) party (2)partydup.[code]In both tables i have common field ("code"). I tried to retrieve the value of "description" field from partydup table when the "code" field in both the tables are same. I run the below coding but it is showing the error as "No data exists for the row/column". But i have a record which contains the code field value as 123 in both the tables. Still it is showing the error. Please let me know what is the mistake i have done.[code]
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Jan 24, 2012
I am rewriting a program I originally did in MS Access. In this program I pull a table from the company's AS400 iSystems, it is filtered by data that I have in an Access Table. In Access, I first link both tables to the source and then just create a Query as if both tables were local. Now that I am using .Net, the second table is in SQL Server 2008.
SELECT LPROD
FROM ITEMS
WHERE EXISTS(
[code].....
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Nov 12, 2009
I am in the process in developing a new version of my software. I have changed my design of my database slightly (added a few new tables and new fields to existing tables). The issue is that my users have user data in the old Db that I would like to transfer to the new Db. Both Db's are access 2003. Because my software is distributed over a wide geographical are it would not be possible to do this manually
I have appended data between two different tables in a single Db, but not between two separate Db's.
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Oct 25, 2010
I have an interesting project.I've been tasked to create utility in VB.Net. So far from what I can see, I will need two tables produced from data in other databases. The mockup was done in Access which has a unique way of treating all tables as local tables that can interact with one another without any serious side effects. Simply put, I can add three tables from three databases and create a relationship and query against them without any problems.I'm not allowed to write or create items on the Server, so I need to do everything within VB.NET. I've created a local MDF file that will be included in the project installation, but as I'm new to .Net. I'm not sure if this is the best practice.I was excited at the prospect that I might be able to avoid having an attached data source when I realized I could create a DataTable and call data from it. When the application shuts down, the table would disappear and the footprint would be virtually 0. But now rather than just selecting data from that table I need to now delete and insert data to the Datatable object based on AdHoc selections on the form.
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Sep 22, 2010
I want to store Usernames/Passwords in a Database/Data Connection...eg. A login.
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Aug 4, 2006
I would like to import the excel in to the sql server using vb.net. how can i do it? Another question is how can i execute the DTS using vb.net
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