Question

I am getting data from my database and I want to have that data as a table in excel file.
So, I have written the following :

    Dim sheetToPopulate As Excel.Worksheet = getSheet()
    Dim reader As OleDbDataReader
    Dim query As String = "SELECT * FROM dataTable"
    Dim cmd As New OleDbCommand(query, oleConn)
    Dim reader As OleDbDataReader
    oleConn.Open()
    reader = cmd.ExecuteReader()
    Do While reader.Read()
        // How use the reader to populate the sheet at once.
        // I have the sheet object as sheetToPopulate.
        // cell.Vaule = reader.GetString(0)  ' It would be very in-efficient and complex.
        // How can I dump the table to my excel sheet ?
    Loop
    reader.Close()
    oleConn.Close()

There should be a straight obvious way of doing this ?

Dumping a database table to excel sheet ?

[ Should I ? ]

Should I use dataset of something.. ? If yes, how to proceed for that ?

Please help.. I am new to this !!

Answer 1

Here is how I solved this :

Private Function getData(ByVal query As String, ByVal conStr As String) As Object
    Dim adapter As New Data.OleDb.OleDbDataAdapter(query, conStr)
    Dim dataSet As New Data.DataSet
    adapter.Fill(dataSet)
    Dim dataTable As Data.DataTable = dataSet.Tables(0)
    Dim data(dataTable.Rows.Count, dataTable.Columns.Count - 1) As Object
    For col = 0 To dataTable.Columns.Count - 1
        For row = 0 To dataTable.Rows.Count - 1
            data(row, col) = dataTable.Rows(row).ItemArray(col)
        Next
    Next
    Return data
End Function

Then Finally, do the following to the range where you want to have this data

range.Value = getDate(query,conStr)

That solved the whole problem !