帮我看看最后那条SQL语句哪错了？
declare @PrevDateTime datetime
declare @NextDateTime datetime
declare @FromDbName varchar(50)
declare @ToDbName varchar(50)
declare @Type varchar(20)
declare @ITBProjectPrice money
declare @ContractPrice money
declare @PurchaseOrderPrice money
declare @ITBProjectPriceint int
declare @ContractPriceint int
declare @PurchaseOrderPriceint int
declare @recordcount int
declare @sql varchar(8000)
declare @str nvarchar(1000)
set @PrevDateTime = '2007-1-1 00:00:01 '
set @NextDateTime = '2007-1-7 23:59:59 '
set @FromDbName = 'DataResource '
set @ToDbName = 'DataTransfer_Client '
set @Type = 'W '
set @str = N 'select @recordcount = count(ProjectID) from [ '+@ToDbName+ '].[dbo].[ProjectBaseData] where ProjectStartDate= ' ' '+convert(varchar,@PrevDateTime,120)+ ' ' ' and ProjectEndDate = ' ' '+convert(varchar,@NextDateTime,120)+ ' ' ' and Type= ' ' '+@Type+ ' ' ' '
exec sp_executesql @str, N '@recordcount int output ', @recordcount output
if (@recordcount =0)
begin
--招标金额
set @str = N 'select @ITBProjectPriceint = COUNT(*) from
(
select [ '+@ToDbName+ '].dbo.fnGetCurrencyExchangeRate(t1.CurrencyID,t1.EstimateCost) as EstimateCost
from [ '+@FromDbName+ '].[dbo].[ServiceRequest] as t1,
(
select distinct TenderNO ,SRID from [ '+@FromDbName+ '].[dbo].[ITB] where IsCanceled <> 1 and SendOutDate > = ' ' '+convert(varchar,@PrevDateTime,120)+ ' ' ' and SendOutDate < ' ' '+convert(varchar,@NextDateTime,120)+ ' ' '
) as t2 where t1.SRID = t2.SRID
) AS A where A.EstimateCost < 0 '
报错：服务器: 消息 170，级别 15，状态 1，行 30
第 30 行: ' '
) as t2 where t1.SRID = t2.SRID
) AS A where A.EstimateCost < 0 ' 附近有语法错误。
[解决办法]
少end
