Ejemplo de la propiedad Sort (VB)

Se aplica a: Access 2013, Office 2013

En este ejemplo se usa la propiedad Sort del objeto Recordset para reordenar las filas de un objeto Recordset derivado de la tabla Authors de la base de datos Pubs. Una rutina de la utilidad secundaria imprime cada fila.

 
'BeginSortVB 
 
 'To integrate this code 
 'replace the data source and initial catalog values 
 'in the connection string 
 
Public Sub Main() 
 On Error GoTo ErrorHandler 
 
 ' connection and recordset variables 
 Dim Cnxn As New ADODB.Connection 
 Dim rstAuthors As New ADODB.Recordset 
 Dim strCnxn As String 
 Dim strSQLAuthors As String 
 
 Dim strTitle As String 
 
 ' Open connection 
 Set Cnxn = New ADODB.Connection 
 strCnxn = "Provider='sqloledb';Data Source='MySqlServer';" & _ 
 "Initial Catalog='Pubs';Integrated Security='SSPI';" 
 Cnxn.Open strCnxn 
 
 ' open client-side recordset to enable sort method 
 Set rstAuthors = New ADODB.Recordset 
 rstAuthors.CursorLocation = adUseClient 
 strSQLAuthors = "SELECT * FROM Authors" 
 rstAuthors.Open strSQLAuthors, Cnxn, adOpenStatic, adLockReadOnly, adCmdText 
 
 ' sort the recordset last name ascending 
 rstAuthors.Sort = "au_lname ASC, au_fname ASC" 
 ' show output 
 Debug.Print "Last Name Ascending:" 
 Debug.Print "First Name Last Name" & vbCr 
 
 rstAuthors.MoveFirst 
 Do Until rstAuthors.EOF 
 Debug.Print rstAuthors!au_fname & " " & rstAuthors!au_lname 
 rstAuthors.MoveNext 
 Loop 
 
 ' sort the recordset last name descending 
 rstAuthors.Sort = "au_lname DESC, au_fname ASC" 
 ' show output 
 Debug.Print "Last Name Descending" 
 Debug.Print "First Name Last Name" & vbCr 
 
 Do Until rstAuthors.EOF 
 Debug.Print rstAuthors!au_fname & " " & rstAuthors!au_lname 
 rstAuthors.MoveNext 
 Loop 
 
 ' clean up 
 rstAuthors.Close 
 Cnxn.Close 
 Set rstAuthors = Nothing 
 Set Cnxn = Nothing 
 Exit Sub 
 
ErrorHandler: 
 ' clean up 
 If Not rstAuthors Is Nothing Then 
 If rstAuthors.State = adStateOpen Then rstAuthors.Close 
 End If 
 Set rstAuthors = Nothing 
 
 If Not Cnxn Is Nothing Then 
 If Cnxn.State = adStateOpen Then Cnxn.Close 
 End If 
 Set Cnxn = Nothing 
 
 If Err <> 0 Then 
 MsgBox Err.Source & "-->" & Err.Description, , "Error" 
 End If 
End Sub 
'EndSortVB 

Ésta es la rutina de la utilidad secundaria que imprime el título concreto y el contenido del objeto Recordset especificado.

 
Attribute VB_Name = "Sort"