SQLSERVER.CE.OLEDB.3.5連接多步OLEDB錯誤

Question

我試圖用以下連接字符串連接到SQL Server Compact Edition .sdf文件;

connMRC.ConnectionString = "Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5;Data Source=" & App.Path & "\Freeweigh.sdf;" 

我收到以下錯誤每次我嘗試運行SQL命令或打開一個記錄：

多步OLE DB生成的錯誤。檢查每個OLE DB狀態值（如果可用）。沒有工作完成。

我使用VB 6.0和SQL Server Compact 3.5 SP2

下面的代碼：

Public Sub opnConnectionC() 
'Code for opening the ADO Connection 
chkConn = connMRC.State 
If chkConn = adStateClosed Then 
    connMRC.ConnectionString = "Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5;Data Source=" & App.Path & "\Freeweigh.sdf;" 
    connMRC.Open 
End If 
End Sub 


Public Sub opnRecordsetC(rsOpen As Recordset) 
'Code for opening the ADO Recordset 
chkRs = rsOpen.State 
If chkRs = adStateClosed Then 
    rsOpen.Source = strSQLC 
    rsOpen.CursorType = adOpenDynamic 
    rsOpen.LockType = adLockOptimistic 
    rsOpen.ActiveConnection = connMRC 
    rsOpen.Open 
End If 
End Sub 


Private Sub tmrUpload_Timer() 
Dim cmdUpload As New ADODB.Command 
Dim rsFetch As New ADODB.Recordset 

Call opnConnectionC 

strSQLC = "SELECT Product FROM VehicleWeights" 
Call opnRecordsetC(rsFetch) 
rsFetch.MoveFirst 
MsgBox (rsFetch.Fields("Product").Value) 

Call clsConnectionC 
End Sub 

Answer 1

只能打開一個只進，只讀記錄