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UpdateBatch 和 CancelBatch 方法范例
该范例连同 CancelBatch 方法说明 UpdateBatch 方法。Public Sub UpdateBatchX() Dim rstTitles As ADODB.Recordset
Dim strCnn As String
Dim strTitle As String
Dim strMessage As String ' 将连接字符串赋值给变量。
strCnn = "Provider=sqloledb;" & _
"Data Source=srv;Initial Catalog=pubs;User Id=sa;Password=; " Set rstTitles = New ADODB.Recordset
rstTitles.CursorType = adOpenKeyset
rstTitles.LockType = adLockBatchOptimistic
rstTitles.Open "titles", strCnn, , , adCmdTable
rstTitles.MoveFirst ' 对记录集执行循环并询问用户是否要更改指定标题的类型。
Do Until rstTitles.EOF
If Trim(rstTitles!Type) = "psychology" Then
strTitle = rstTitles!Title
strMessage = "Title: " & strTitle & vbCr & _
"Change type to self help?" If MsgBox(strMessage, vbYesNo) = vbYes Then
rstTitles!Type = "self_help"
End If
End If rstTitles.MoveNext
Loop ' 询问用户是否要提交以上所作的全部更改。
If MsgBox("Save all changes?", vbYesNo) = vbYes Then
rstTitles.UpdateBatch
Else
rstTitles.CancelBatch
End If ' 打印记录集中的当前数据。
rstTitles.Requery
rstTitles.MoveFirst
Do While Not rstTitles.EOF
Debug.Print rstTitles!Title & " - " & rstTitles!Type
rstTitles.MoveNext
Loop ' 恢复原始值,因为这只是演示。
rstTitles.MoveFirst
Do Until rstTitles.EOF
If Trim(rstTitles!Type) = "self_help" Then
rstTitles!Type = "psychology"
End If
rstTitles.MoveNext
Loop
rstTitles.UpdateBatch rstTitles.CloseEnd Sub
UpdateBatch 和 CancelBatch 方法范例
该范例连同 CancelBatch 方法说明 UpdateBatch 方法。Public Sub UpdateBatchX() Dim rstTitles As ADODB.Recordset
Dim strCnn As String
Dim strTitle As String
Dim strMessage As String ' 将连接字符串赋值给变量。
strCnn = "Provider=sqloledb;" & _
"Data Source=srv;Initial Catalog=pubs;User Id=sa;Password=; " Set rstTitles = New ADODB.Recordset
rstTitles.CursorType = adOpenKeyset
rstTitles.LockType = adLockBatchOptimistic
rstTitles.Open "titles", strCnn, , , adCmdTable
rstTitles.MoveFirst ' 对记录集执行循环并询问用户是否要更改指定标题的类型。
Do Until rstTitles.EOF
If Trim(rstTitles!Type) = "psychology" Then
strTitle = rstTitles!Title
strMessage = "Title: " & strTitle & vbCr & _
"Change type to self help?" If MsgBox(strMessage, vbYesNo) = vbYes Then
rstTitles!Type = "self_help"
End If
End If rstTitles.MoveNext
Loop ' 询问用户是否要提交以上所作的全部更改。
If MsgBox("Save all changes?", vbYesNo) = vbYes Then
rstTitles.UpdateBatch
Else
rstTitles.CancelBatch
End If ' 打印记录集中的当前数据。
rstTitles.Requery
rstTitles.MoveFirst
Do While Not rstTitles.EOF
Debug.Print rstTitles!Title & " - " & rstTitles!Type
rstTitles.MoveNext
Loop ' 恢复原始值,因为这只是演示。
rstTitles.MoveFirst
Do Until rstTitles.EOF
If Trim(rstTitles!Type) = "self_help" Then
rstTitles!Type = "psychology"
End If
rstTitles.MoveNext
Loop
rstTitles.UpdateBatch rstTitles.CloseEnd Sub
RS.CURSORTYPE=ADOPENKEYSET
RS.LOCKTYPE=ADLOCKOPTIMISTIC
RS.OPEN "TEST", CN, , , ADCMDTABLEFOR I=0 TO 10
RS.ADDNEW
RS!ID=I
RS!COMMENTS="TEST ID " & CHR(I)
RS.UPDATENEXT IRS.CLOSE