我对ADODB还是陌生的。我希望我的问题不是那么愚蠢。我打开了一个从Excel工作表（用户界面）到另一个工作表（“数据库”）的ADODB连接。该代码可以完美运行，但是有时更新或插入的数据不会记录在数据库表中。我不知道为什么，也不知道如何检查以避免发生。我确实知道，如果我打开数据库工作表，保存然后关闭，它将再次运行良好。有人知道原因吗？
代码的程序运行良好，Excel VBA调试器未收到任何错误...然后我发布了一些我认为可能是问题所在的部分...
Public cn As ADODB.Connection
Public rst As ADODB.Recordset
Public sSQL As String
Public z, OP, Conf, TempoA, Setor As Double
Public FoundAp, FoundPar As Boolean
Private Sub txtCod_Exit(ByVal Cancel As MSForms.ReturnBoolean)
Set cn = New ADODB.Connection
Set rst = New ADODB.Recordset
If Val(Application.Version) <= 11 Then 'Excel 2003 ou anterior
cn.ConnectionString = _
"Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=" & EstaPasta_de_trabalho.DbPath & ";" & _
"Extended Properties=Excel 8.0;"
Else 'Excel 2007 ou superior
cn.ConnectionString = _
"Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=" & EstaPasta_de_trabalho.DbPath & ";" & _
"Extended Properties=Excel 12.0 Xml;"
End If
cn.Open
'Instrução Sql:
sSQL = "SELECT * FROM [tb_Db_Ops$] " & _
"WHERE Cod_Apont LIKE " & txtCod & ";"
rst.CursorLocation = adUseServer
rst.Open sSQL, cn, adOpenKeyset, adLockOptimistic, adCmdText
If Not rst.EOF And Not rst.BOF Then
OP = rst!OP
frmApontamento.Visible = True
txtApontA = txtCod.Text
txtOpA = OP
txtEtapa.Text = rst!Etapa
txtDocA = rst!Documento
txtObraA = Mid(rst!Obra, 12)
Setor = CDbl(rst!Setor)
If IsNull(rst!Status) = False Then
Status = rst!Status
End If
If Status = "FINALIZADO" Then
frmMsg.lblMsg.Caption = "OP já finalizada!"
frmMsg.Show
rst.Close
cn.Close
Set rst = Nothing
Set cn = Nothing
Exit Sub
ElseIf Status = "EM EXECUÇÃO" Then
FoundAp = True
FoundPar = False
ElseIf Status = "" Then
FoundAp = False
FoundPar = False
Else
FoundAp = True
FoundPar = True
End If
Else
frmMsg.lblMsg.Caption = "Apontamento NÃO encontrado na Base de Dados! Supervisão notificada! Tente novamente mais tarde!"
frmMsg.Show
Email.ErroBd = True
Email.ErroGrav = False
Email.Proced = "txtCod_Exit"
Call Email_Erros
rst.Close
cn.Close
Set rst = Nothing
Set cn = Nothing
Exit Sub
End If
rst.Close
sSQL = "UPDATE [tb_Apontamentos$] " & _
"SET dt_f = NOW(), dt = NOW() - dt_i " & _
"WHERE Cod_Apont LIKE " & txtApontR & " AND dt_f IS NULL;"
cn.Execute sSQL
Final:
If Not (rst Is Nothing) Then
If rst.State = 1 Then
rst.Close
End If
Set rst = Nothing
End If
If Not (cn Is Nothing) Then
If cn.State = 1 Then
cn.Close
End If
Set cn = Nothing
End If
end sub
它从用户窗体文本框中获取一些值。它在Windows 10中的2013 32位Excel版本上运行。Microsoft ActiveX数据对象6.1和Microsoft ActiveX数据对象Recordset 6.0库已激活。接口是.xlsm，数据库是.xlsx
听起来您正在尝试从封闭的工作簿中导入数据。我已经有一段时间没有尝试过了，但是听起来宏录制器知道了，或者您正在/从中录制工作簿，所以本地工作簿而不是外部工作簿，因此它丢失了对外部工作簿的引用。请参见下面的代码示例。
Import data from a closed workbook (ADO)
如果要从封闭的工作簿中导入大量数据，则可以使用ADO和下面的宏来完成。如果要从已关闭工作簿中的第一个工作表之外的另一个工作表中检索数据，则必须引用用户定义的命名范围。下面的宏可以这样使用（在Excel 2000或更高版本中）：
GetDataFromClosedWorkbook "C:\FolderName\WorkbookName.xls", "A1:B21", ActiveCell, False
GetDataFromClosedWorkbook "C:\FolderName\WorkbookName.xls", "MyDataRange", Range ("B3"), True
Sub GetDataFromClosedWorkbook(SourceFile As String, SourceRange As String, _
TargetRange As Range, IncludeFieldNames As Boolean)
' requires a reference to the Microsoft ActiveX Data Objects library
' if SourceRange is a range reference:
' this will return data from the first worksheet in SourceFile
' if SourceRange is a defined name reference:
' this will return data from any worksheet in SourceFile
' SourceRange must include the range headers
'
Dim dbConnection As ADODB.Connection, rs As ADODB.Recordset
Dim dbConnectionString As String
Dim TargetCell As Range, i As Integer
dbConnectionString = "DRIVER={Microsoft Excel Driver (*.xls)};" & _
"ReadOnly=1;DBQ=" & SourceFile
Set dbConnection = New ADODB.Connection
On Error GoTo InvalidInput
dbConnection.Open dbConnectionString ' open the database connection
Set rs = dbConnection.Execute("[" & SourceRange & "]")
Set TargetCell = TargetRange.Cells(1, 1)
If IncludeFieldNames Then
For i = 0 To rs.Fields.Count - 1
TargetCell.Offset(0, i).Formula = rs.Fields(i).Name
Next i
Set TargetCell = TargetCell.Offset(1, 0)
End If
TargetCell.CopyFromRecordset rs
rs.Close
dbConnection.Close ' close the database connection
Set TargetCell = Nothing
Set rs = Nothing
Set dbConnection = Nothing
On Error GoTo 0
Exit Sub
InvalidInput:
MsgBox "The source file or source range is invalid!", _
vbExclamation, "Get data from closed workbook"
End Sub
另一种不使用CopyFromRecordSet方法的方法
使用下面的宏，您可以执行导入并更好地控制从RecordSet返回的结果。
Sub TestReadDataFromWorkbook()
' fills data from a closed workbook in at the active cell
Dim tArray As Variant, r As Long, c As Long
tArray = ReadDataFromWorkbook("C:\FolderName\SourceWbName.xls", "A1:B21")
' without using the transpose function
For r = LBound(tArray, 2) To UBound(tArray, 2)
For c = LBound(tArray, 1) To UBound(tArray, 1)
ActiveCell.Offset(r, c).Formula = tArray(c, r)
Next c
Next r
' using the transpose function (has limitations)
' tArray = Application.WorksheetFunction.Transpose(tArray)
' For r = LBound(tArray, 1) To UBound(tArray, 1)
' For c = LBound(tArray, 2) To UBound(tArray, 2)
' ActiveCell.Offset(r - 1, c - 1).Formula = tArray(r, c)
' Next c
' Next r
End Sub
Private Function ReadDataFromWorkbook(SourceFile As String, SourceRange As String) As Variant
' requires a reference to the Microsoft ActiveX Data Objects library
' if SourceRange is a range reference:
' this function can only return data from the first worksheet in SourceFile
' if SourceRange is a defined name reference:
' this function can return data from any worksheet in SourceFile
' SourceRange must include the range headers
' examples:
' varRecordSetData = ReadDataFromWorkbook("C:\FolderName\SourceWbName.xls", "A1:A21")
' varRecordSetData = ReadDataFromWorkbook("C:\FolderName\SourceWbName.xls", "A1:B21")
' varRecordSetData = ReadDataFromWorkbook("C:\FolderName\SourceWbName.xls", "DefinedRangeName")
Dim dbConnection As ADODB.Connection, rs As ADODB.Recordset
Dim dbConnectionString As String
dbConnectionString = "DRIVER={Microsoft Excel Driver (*.xls)};ReadOnly=1;DBQ=" & SourceFile
Set dbConnection = New ADODB.Connection
On Error GoTo InvalidInput
dbConnection.Open dbConnectionString ' open the database connection
Set rs = dbConnection.Execute("[" & SourceRange & "]")
On Error GoTo 0
ReadDataFromWorkbook = rs.GetRows ' returns a two dim array with all records in rs
rs.Close
dbConnection.Close ' close the database connection
Set rs = Nothing
Set dbConnection = Nothing
On Error GoTo 0
Exit Function
InvalidInput:
MsgBox "The source file or source range is invalid!", vbExclamation, "Get data from closed workbook"
Set rs = Nothing
Set dbConnection = Nothing
End Function
请参见下面的链接。
https://www.erlandsendata.no/english/index.php?d=envbadacimportwbado
也请查看此链接。