Ejemplo del método Clone (VBScript)
Se aplica a: Access 2013, Office 2013
En este ejemplo se usa el método Clone para crear copias de un conjunto de registros y, después, se deja que el usuario coloque el puntero de registros de cada copia de manera independiente.
Use el ejemplo siguiente en una página Active Server (ASP). En este ejemplo se utiliza la base de datos Northwind distribuida con Microsoft Access. Corte y pegue el código siguiente en el Bloc de notas u otro editor de texto y guárdelo como CloneVBS.asp. Podrá ver el resultado en cualquier explorador de cliente.
Para ejercer el ejemplo, cambie la línea RsCustomerList.Source = "Customers" a RsCustomerList.Source = "Products" para contar una tabla más grande.
<!-- BeginCloneVBS -->
<% Language = VBScript %>
<%' use this meta tag instead of adovbs.inc%>
<!--METADATA TYPE="typelib" uuid="00000205-0000-0010-8000-00AA006D2EA4" -->
<HTML>
<HEAD>
<TITLE>ADO Clone Method</TITLE>
</HEAD>
<BODY>
<H1 align="center">ADO Clone Method</H1>
<HR>
<% ' to integrate/test this code replace the
' Data Source value in the Connection string%>
<%
' connection and recordset variables
Dim Cnxn, strCnxn
Dim rsCustomers, strSQLCustomers
Dim rsFirst, rsLast, rsCount
Dim rsClone
Dim CloneFirst, CloneLast, CloneCount
' open connection
Set Cnxn = Server.CreateObject("ADODB.Connection")
strCnxn = "Provider='sqloledb';Data Source=" & _
Request.ServerVariables("SERVER_NAME") & ";" & _
"Integrated Security='SSPI';Initial Catalog='Northwind';"
Cnxn.Open strCnxn
' create and open Recordset using object refs
Set rsCustomers = Server.CreateObject("ADODB.Recordset")
strSQLCustomers = "Customers"
rsCustomers.ActiveConnection = Cnxn
rsCustomers.CursorLocation = adUseClient
rsCustomers.CursorType = adOpenKeyset
rsCustomers.LockType = adLockOptimistic
rsCustomers.Source = strSQLCustomers
rsCustomers.Open
rsCustomers.MoveFirst
rsCount = rsCustomers.RecordCount
rsFirst = rsCustomers("CompanyName")
rsCustomers.MoveLast
rsLast = rsCustomers("CompanyName")
' create clone
Set rsClone = rsCustomers.Clone
rsClone.MoveFirst
CloneCount = rsClone.RecordCount
CloneFirst = rsClone("CompanyName")
rsClone.MoveLast
CloneLast = rsClone("CompanyName")
%>
<!-- Display Results -->
<H3>There Are <%=rsCount%> Records in the original recordset</H3>
<H3>The first record is <%=rsFirst%> and the last record is <%=rsLast%></H3>
<BR><HR>
<H3>There Are <%=CloneCount%> Records in the original recordset</H3>
<H3>The first record is <%=CloneFirst%> and the last record is <%=CloneLast%></H3>
<BR><HR>
<H4>Location of OLEDB Database</H4>
<%
' Show location of DSN data source
Response.Write(Cnxn)
' Clean up
If rsCustomers.State = adStateOpen then
rsCustomers.Close
End If
If rsClone.State = adStateOpen then
rsClone.Close
End If
If Cnxn.State = adStateOpen then
Cnxn.Close
End If
Set rsCustomers = Nothing
Set rsClone = Nothing
Set Cnxn = Nothing
%>
</BODY>
</HTML>
<!-- EndCloneVBS -->