k3v10.1凭证制作速度慢，启用了科目累计余额即时显示选项，经查询跟踪，发现此语句有问题：

金蝶财务系统出现交互非常缓慢的问题原因基本查清。出现问题的SQL语句是：
Select Sum(e.FAmountFor*e.FDC) as FDebitFor , Sum(e.FAmount*e.FDC) as FDebit ,
Sum(e.FAmountFor*(1-e.FDC)) as FCreditFor , Sum(e.FAmount*(1-e.FDC)) as FCredit
From t_Voucher v , t_VoucherEntry e , t_Account a
Where v.FVoucherID = e.FVoucherID And e.FAccountID = a.FAccountID And
v.FYear *100+ v.FPeriod <= 201709 And v.FYear *100+ v.FPeriod >= 201701And
e.FAccountID = 3412 AND e.FCurrencyID=1 AND e.FDetailID=0 AND
ISNULL(v.FInternalInD,'') <> 'TransferPL'

请金蝶公司开发人员回复，我已请人写出改良语句，如何放入系统请指点，请联系我，我发改良语句