I wonder if it is threadsafe to have a Shared Function or Sub like
this:

Public Class Data1
   Public Shared Function Query1(Byref sCnxn as String, Byval sSql As
String) As DataTable
       Dim oCnxn As New SqlConnection(sCnxn)
       Dim oCmd As New SqlCommand(sSql, oCnxn)
       Dim oDs As New DataSet

       ' Mark the Command as a SPROC
       oCmd.CommandType = CommandType.Text

       oCnxn.Open()
       Dim oDa As SqlDataAdapter = New SqlDataAdapter(oCmd)
       oDa.Fill(oDs, "result")

       oCmd.Dispose()
       oCnxn.Close()

       Dim dt As DataTable = oDs.Tables("result").Copy
       oDs.Clear()
       oDs = Nothing
       oDa = Nothing

       Return dt
   End Function
End Class

Will I have any problem with multiple concurrent web requests?

Thanks