我在将数据插入sqlce时遇到了性能问题。我正在读取字符串并插入My tables。在LU_MAM表中,我插入了1000条记录,时间为8秒。在Mam表之后,我进行了一些插入但是我最大的表是CR_MUS。当我想将记录插入CR_MUS时,需要花费太多时间.CR_MUS有2000条记录,插入需要35秒。可能是什么原因?我在插入函数中使用相同的逻辑。你有什么想法吗?我使用VS 2008 sp1。
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
公共函数CR_KAMPANYA_MUSTERI_I(ByVal f_Line()As String,ByRef myComm As SqlCeCommand,ByRef rs As SqlCeResultSet,ByRef rec As SqlCeUpdatableRecord)As String
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
答案 0 :(得分:0)