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Sep 21, 2007

Hello all,

I'm working on webshop database consisting of these tables:
customers, customers_groups, products_groups, products
For every customer (in customers) there is an entry in customers_groups.
The price lists that are used for every customer are defined in the table products_groups.
In products_groups the ids of customers_groups and products are used to assign a special price to every group.

Now I would like to insert data from another db on the sqlserver that holds the customer and product information.
So I have to insert price entries for all products for each customer.
I working on some t-sql procedures that should do that job.

In pseudo code:



Code SnippetFOR EACH customer
FOR EACH product
INSERT INTO products_groups (, ...price)
END FOR
END FOR






Would that be a cross join?


Thanks in advance for every hint!

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Hello
 How do u update the datafield of a row using buttonClick in vb? I have a details view whereby it will display the username and timeleft once log in. currently the datafield, timeleft on one user in the database is null. I'm using sqldatasource.
Once log in, it will direct to this page where the user enters a code on the textbox and click the enter button. This will cause an update on the user's timeleft. But the code must not be entered to the database.
 For eg. If code = 1111 then 'update timeleft = 60 The timeleft is in minutes. 60 will be stored as double in the user's row in the database. How do i do this?
Please help asap. Thanks! :)

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Feb 25, 2008

I have two textboxes on the page...shipdate and duedate.  When the page loads, shipdate has today's date loaded and duedate has a date that's 28 days later than today.  When I change the dates and submit it's not updating in the database instead I'm getting the two dates in pageload.  What am I doing wrong?Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 
ShipDateTxt.Text = Today()
DueDateTxt.Text = DateAdd(DateInterval.Day, 28, Today())
End SubProtected Sub LoanRequest_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LoanRequest.Click
Dim conn As New Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings("TrainUserConnectionString").ConnectionString)Dim cmd As New Data.SqlClient.SqlCommandWith cmd
.Connection = conn
.CommandType = Data.CommandType.StoredProcedure
.CommandText = "UpdateloanerInfo".Parameters.AddWithValue("@requestorid", Integer.Parse(Request.QueryString("requestorid")))
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End With
Here's updateloanerinfo stored procedure:
@requestorid int,@shipdate datetime,@duedate datetime
AS update LibraryRequest
set [shipdate] = @shipdate,[duedate] = @duedate
Where  requestorid=@requestorid

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Mar 28, 2008

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Apr 18, 2008

building some kind of ecommerce site.
I want to allow the user to modify the image that he has stored for a product.
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When the user selects a new Image, I first delete the old image in the directory, then save the new image, but what I can't do is to update the table with the new image name, when I write sqldatasource1.update() I have an error "the dictionnary passed with old values is empty"(translated from frengh).
the update statement in sqldatasource1 is: " UPDATE Gamme SET imagename = @imagename, imagesize = @imagesize WHERE (product_ID = @original_product_ID)"
 
on events sqldatasource1.updating I have written:
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May 14, 2008

Hi!

I am trying to retrieve and update data. I am retrieving the data into the respective controls such as textboxes. The codes are follow:

Retrieve data - working

Dim sqlConn As New SqlConnection()
sqlConn.ConnectionString = ConfigurationManager.ConnectionStrings("ScheduleConnectionString").ToString()

Dim com As SqlCommand = New SqlCommand("SELECT * FROM Demo_Theatre_DB WHERE ID=" & "@ID", sqlConn)

Dim paramID As New SqlParameter("@ID", SqlDbType.Int)

paramID.Direction = ParameterDirection.Input

com.Parameters.Add(paramID)
paramID.Value = e.Value
sqlConn.Open()
Dim reader As SqlDataReader = com.ExecuteReader()
While reader.Read()
StartTimeTextBox.Text = reader("StartTime")
EndTimeTextBox.Text = reader("EndTime")
CompanyNameTextBox.Text = reader("CompanyName")
PurposeTextBox.Text = reader("Purpose")
AccountManagerTextBox.Text = reader("AccountManager")
PresenterTextBox.Text = reader("Presenter")
ColorDDL.SelectedValue = reader("ColorCode")
StatusRadioButtonList.SelectedValue = reader("Status")
CommentTextBox.Text = reader("Comments")
End While


update the data - NOT WORKING


Dim sqlConn As New SqlConnection()
sqlConn.ConnectionString = ConfigurationManager.ConnectionStrings("ScheduleConnectionString").ToString()

Dim cmd As SqlCommand = New SqlCommand("UPDATE Demo_Theatre_DB SET StartTime = @StartTime, EndTime = @EndTime, CompanyName = @CompanyName, Purpose = @Purpose, AccountManager = @AccountManager, Presenter = @Presenter, ColorCode = @ColorCode, Status = @Status, Comments = @Comments WHERE ID=@ID")

cmd.Parameters.AddWithValue("StartTime", StartTimeTextBox.Text)
cmd.Parameters.AddWithValue("EndTime", EndTimeTextBox.Text)
cmd.Parameters.AddWithValue("CompanyName", CompanyNameTextBox.Text)
cmd.Parameters.AddWithValue("Purpose", PurposeTextBox.Text)
cmd.Parameters.AddWithValue("AccountManager", AccountManagerTextBox.Text)
cmd.Parameters.AddWithValue("Presenter", PresenterTextBox.Text)
cmd.Parameters.AddWithValue("ColorCode", ColorDDL.SelectedValue)
cmd.Parameters.AddWithValue("Status", StatusRadioButtonList.SelectedValue)
cmd.Parameters.AddWithValue("Comments", CommentTextBox.Text)

Try
sqlConn.Open()
cmd.ExecuteScalar()

Catch ex As Exception
InsertMsgLabel.Text = ex.ToString
End Try
End Sub


I am getting the following error whenever I click update button.
"ExecuteScalar: Connection property has not been initialized"

Your help will be appriciated!

Thanks!

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