Append-Methode (Procedures) (VB-Beispiel)

Gilt für: Access 2013, Office 2013

Im folgenden Code wird die Verwendung eines Command-Objekts und der Append-Methode derProcedures-Auflistung veranschaulicht, um eine neue Prozedur in der zugrunde liegenden Datenquelle zu erstellen.

 
' BeginCreateProcedureVB 
Sub Main() 
 On Error GoTo CreateProcedureError 
 
 Dim cnn As New ADODB.Connection 
 Dim cmd As New ADODB.Command 
 Dim prm As ADODB.Parameter 
 Dim cat As New ADOX.Catalog 
 
 ' Open the Connection 
 cnn.Open _ 
 "Provider='Microsoft.Jet.OLEDB.4.0';" & _ 
 "Data Source='c:\Program Files\Microsoft Office\" & _ 
 "Office\Samples\Northwind.mdb';" 
 
 ' Create the parameterized command (Microsoft Jet specific) 
 Set cmd.ActiveConnection = cnn 
 cmd.CommandText = "PARAMETERS [CustId] Text;" & _ 
 "Select * From Customers Where CustomerId = [CustId]" 
 
 ' Open the Catalog 
 Set cat.ActiveConnection = cnn 
 
 ' Create the new Procedure 
 cat.Procedures.Append "CustomerById", cmd 
 
 'Clean 
 cnn.Close 
 Set cat = Nothing 
 Set cmd = Nothing 
 Set cnn = Nothing 
 Exit Sub 
 
CreateProcedureError: 
 Set cat = Nothing 
 Set cmd = Nothing 
 
 If Not cnn Is Nothing Then 
 If cnn.State = adStateOpen Then cnn.Close 
 End If 
 Set cnn = Nothing 
 
 If Err <> 0 Then 
 MsgBox Err.Source & "-->" & Err.Description, , "Error" 
 End If 
End Sub 
' EndCreateProcedureVB