Compact Framework中的一个非常有趣的问题

我在插入数据到sqlce.I'm阅读字符串和插入到我的表时，我有一个性能问题。在LU_MAM表中，我插入1000个记录8秒。后Mam表我让一些插入，但我最大的表是CR_MUS.When我想插入记录到CR_MUS，它需要太多的时间.CR_MUS有2000个记录，插入需要35秒。什么可以是原因？我在我的插入函数中使用相同的逻辑。任何想法？我使用VS 2008 sp1。Compact Framework中的一个非常有趣的问题

Dim reader As StringReader 
reader = New StringReader(data) 

cn = New SqlCeConnection(General.ConnString) 
cn.Open() 

If myTransfer.ClearTables(cn, cmd) = True Then 
    progress = 0 
    '------------------------------------------ 
cmd = New SqlServerCe.SqlCeCommand 
Dim rs As SqlCeResultSet 
cmd.Connection = cn 
cmd.CommandType = CommandType.TableDirect 
Dim rec As SqlCeUpdatableRecord 

' name of table 

While reader.Peek > -1 
    If strerr_col = "" Then 

     satir = reader.ReadLine() 
     ayrac = Split(satir, "|") 

     If ayrac(0).ToString() = "LC" Then 
      prgsbar.Maximum = Convert.ToInt32(ayrac(1)) 

     ElseIf ayrac(0).ToString = "PPAR" Then 
      . 
      If ayrac(2).ToString <> General.PMVer Then 
       ShowWaitCursor(False) 
       txtDurum.Text = "Wrong Version" 

       Exit Sub 
      End If 
      If p_POCKET_PARAMETERS = True Then 
       cmd.CommandText = "POCKET_PARAMETERS" 
       txtDurum.Text = "POCKET_PARAMETERS" 
       rs = cmd.ExecuteResultSet(ResultSetOptions.Updatable) 
       rec = rs.CreateRecord() 
       p_POCKET_PARAMETERS = False 
      End If 
      strerr_col = myVERI_AL.POCKET_PARAMETERS_I(ayrac, cmd, rs, rec) 
      prgsbar.Value += 1 

     ElseIf ayrac(0).ToString() = "MAM" Then 
      If p_LU_MAM = True Then 
       txtDurum.Text = "LU_MAM " 
       cmd.CommandText = "LU_MAM" 
       rs = cmd.ExecuteResultSet(ResultSetOptions.Updatable) 
       rec = rs.CreateRecord() 
       p_LU_MAM = False 
      End If 
      strerr_col = myVERI_AL.LU_MAM_I(ayrac, cmd, rs, rec) 
      prgsbar.Value += 1 
        ElseIf ayrac(0).ToString = "KMUS" Then 
      If p_CR_MUS = True Then 
       cmd.CommandText = "CR_MUS" 
       txtDurum.Text = "CR_MUS" 
       rs = cmd.ExecuteResultSet(ResultSetOptions.Updatable) 
       rec = rs.CreateRecord() 
       p_TR_KAMPANYA_MALZEME = False 
      End If 
      strerr_col = myVERI_AL.CR_MUS_I(ayrac, cmd, rs, rec) 
      prgsbar.Value += 1 

end while

公共功能CR_KAMPANYA_MUSTERI_I（BYVAL f_Line（）作为字符串，为ByRef myComm作为SqlCeCommand，为ByRef RS作为SqlCeResultSet，为ByRef REC作为SqlCeUpdatableRecord）作为字符串

Try 
     rec.SetValue(0, If(f_Line(1) = String.Empty, DirectCast(DBNull.Value, Object), f_Line(1))) 
     rec.SetValue(1, If(f_Line(2) = String.Empty, DirectCast(DBNull.Value, Object), f_Line(2))) 
     rec.SetValue(2, If(f_Line(3) = String.Empty, DirectCast(DBNull.Value, Object), f_Line(3))) 
     rec.SetValue(3, If(f_Line(5) = String.Empty, DirectCast(DBNull.Value, Object), f_Line(5))) 
     rec.SetValue(4, If(f_Line(6) = String.Empty, DirectCast(DBNull.Value, Object), f_Line(6))) 
     rs.Insert(rec) 
    Catch ex As Exception 
     strerr_col = ex.Message 
    End Try 
    Return strerr_col 

End Function

来源

2009-10-30 Alexander

好吧，我发现的疑难问题是CR_MUS错误。我每次都在使用cr_mus，因为我不让p_CR_MUS = false.And也增加进度条值也会降低性能。所以现在我没有问题了。

来源

2009-10-30 14:16:38 Alexander

Compact Framework中的一个非常有趣的问题

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