NextRecordset 方法示例 (VB)

适用于：Access 2013、Office 2013

本示例使用 NextRecordset 方法来查看记录集中的数据，该方法使用由三个单独的 SELECT 语句构成的复合命令语句。

 
'BeginNextRecordsetVB 
 
 '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 rstCompound As ADODB.Recordset 
 Dim Cnxn As ADODB.Connection 
 Dim strCnxn As String 
 Dim SQLCompound As String 
 
 Dim intCount As Integer 
 
 ' Open connection 
 Set Cnxn = New ADODB.Connection 
 strCnxn = "Provider='sqloledb';Data Source='MySqlServer';" & _ 
 "Initial Catalog='Pubs';Integrated Security='SSPI';" 
 Cnxn.Open strCnxn 
 
 ' Open compound recordset 
 Set rstCompound = New ADODB.Recordset 
 SQLCompound = "SELECT * FROM Authors; " & _ 
 "SELECT * FROM stores; " & _ 
 "SELECT * FROM jobs" 
 rstCompound.Open SQLCompound, Cnxn, adOpenStatic, adLockReadOnly, adCmdText 
 
 ' Display results from each SELECT statement 
 intCount = 1 
 Do Until rstCompound Is Nothing 
 Debug.Print "Contents of recordset #" & intCount 
 
 Do Until rstCompound.EOF 
 Debug.Print , rstCompound.Fields(0), rstCompound.Fields(1) 
 rstCompound.MoveNext 
 Loop 
 
 Set rstCompound = rstCompound.NextRecordset 
 intCount = intCount + 1 
 Loop 
 
 ' clean up 
 Cnxn.Close 
 Set rstCompound = Nothing 
 Set Cnxn = Nothing 
 Exit Sub 
 
ErrorHandler: 
 ' clean up 
 If Not rstCompound Is Nothing Then 
 If rstCompound.State = adStateOpen Then rstCompound.Close 
 End If 
 Set rstCompound = 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 
'EndNextRecordsetVB