SQL Server 2008 R2中的触发器代码或日期格式错误

Question

在用户完成验证(某种用户输入数据)后，我正在使用一个捕获软件Abbyy FlexiCapture。它将捕获的数据导出到SQL Server 2008 R2 中

一旦SQL Server确定存在插入的数据(新行)，它将触发代码，以根据业务规则更新表Abbyy。

该表有两列，称为ProcessingDate和DateOfService

我的业务规则要求是

1. 如果处理日期晚于服务日期7个月，它将更新Abbyy表
   • 列CouponStatus带有">拒绝">
   • 列RejectCode，带有">A5">
2. 如果处理日期早于服务日期7个月，它将更新Abbyy表
   • 列CouponStatus带"批准">
   • 列RejectCode中带有"null">

我面临一个错误，因为某些插入的数据的处理日期超过服务日期7个月，列CouponStatus变为">批准"。

我不确定是我的触发码问题还是日期格式问题。当用户进行验证时，日期格式为dd/mm/yy、

在SQLServer2008R2中，我的ProcessingDate和DateOfService列的数据类型为date，格式为yyyy-mm-dd

这是我的触发代码，请关注第86行

USE [master]
GO
/****** Object:  Trigger [dbo].[BusinessRule]    Script Date: 10/03/2012 11:28:05 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER TRIGGER [dbo].[BusinessRule]
ON [dbo].[Abbyy]
AFTER INSERT
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

DECLARE @Identity varchar(225);
DECLARE @RegNo varchar(225);
DECLARE @ProDate date;
DECLARE @SerDate date;
DECLARE @PriKey varchar(255);
SELECT @Identity=EngineNo, @RegNo=VehRegNo, @ProDate=ProcessingDate, @SerDate=DateOfService,@PriKey=DocID FROM Inserted
--If EngineNo not exist in db, update Reject & A1
IF EXISTS (Select EngineNo
From Abbyy
Where
NOT EXISTS
(Select EngineNo
From eDaftarOwnerDetail
where eDaftarOwnerDetail.EngineNo = @Identity))
UPDATE Abbyy
SET CouponStatus = 'Reject', RejectCode = 'A1'
WHERE EngineNo = @Identity
and DocID=@PriKey
--If Vehicle Registration No not exist in db, update Reject & A2
Else If EXISTS (Select VehRegNo
From Abbyy
Where
NOT EXISTS
(Select VehRegNo
From eDaftarOwnerDetail
Where eDaftarOwnerDetail.VehRegNo = @RegNo))
UPDATE Abbyy
SET CouponStatus = 'Reject', RejectCode = 'A2'
WHERE VehRegNo = @RegNo
and DocID=@PriKey
--If EngineNo & Vehicle Registration No does not matched, update Reject & A3
Else If EXISTS (Select EngineNo, VehRegNo
From Abbyy
Where
NOT EXISTS
(Select EngineNo, VehRegNo
From eDaftarOwnerDetail
Where eDaftarOwnerDetail.EngineNo = @Identity
and eDaftarOwnerDetail.VehRegNo = @RegNo))
UPDATE Abbyy
SET CouponStatus = 'Reject', RejectCode = 'A3'
WHERE EngineNo = @Identity
and VehRegNo = @RegNo
and DocID=@PriKey
-- If EngineNo exist in db more then twice, update Reject & A4
Else If EXISTS (Select COUNT(1)
From Abbyy
Where EngineNo = @Identity
Group by EngineNo 
Having COUNT(1)>2)
UPDATE Abbyy
SET CouponStatus = 'Reject', RejectCode = 'A4'
WHERE EngineNo = @Identity
and DocID=@PriKey
-- If ProcessingDate more than ServiceDate 210 days, update Reject & A5 
Else If EXISTS (Select ProcessingDate, DateOfService
From Abbyy
Where
datediff(day, @SerDate, @ProDate)>210)
UPDATE Abbyy
SET CouponStatus = 'Reject', RejectCode = 'A5'
WHERE ProcessingDate = @ProDate
and DateOfService = @SerDate
and DocID=@PriKey
Else
UPDATE Abbyy
Set CouponStatus = 'Approve', RejectCode = ''
WHERE EngineNo = @Identity
-- Insert statements for trigger here
END

感谢任何人能给我一些指导来解决这个问题。非常感谢。

Answer 1

在比较之前进行某种日期格式化，将两个值转换为相同的格式

示例：

WHERE CONVERT(VARCHAR,ProcessingDate,102) = CONVERT(VARCHAR,@ProDate,102)

或

WHERE CONVERT(DATE,ProcessingDate,102) = CONVERT(DATE,@ProDate,102)