sql – 根据当前日期和配置数据获取记录

2019年8月4日 206次阅读

我正致力于在我的Web应用程序中自动化SMS发送部分.

SQL Fiddle Link

DurationType表存储短信是否应以小时,天,周,月的间隔发送.在SMSConfiguration中引用

CREATE TABLE [dbo].[DurationType](
[Id] [int] NOT NULL PRIMARY KEY,
[DurationType] VARCHAR(10) NOT NULL
)

预订表包含原始预订数据.对于此预订,我需要根据配置发送短信.

短信配置.其中定义了发送自动SMS的配置.它可以在之前/之后发送.在= 0之前,之后= 1. DurationType可以是Hours = 1,Days = 2,Weeks = 3,Months = 4

现在我需要根据SMS配置集找出需要在当前时间发送短信的预订列表.

使用UNION尝试SQL

DECLARE @currentTime smalldatetime = '2014-07-12 11:15:00'


-- 'SMS CONFIGURED FOR HOURS BASIS'

SELECT  B.Id AS BookingId, 
        B.StartTime AS BookingStartTime,@currentTime As CurrentTime,  SMS.SMSText
FROM    Bookings B INNER JOIN
        SMSConfiguration SMS ON SMS.CategoryId = B.CategoryId OR SMS.CategoryId IS NULL
WHERE   (DATEDIFF(HOUR, @currentTime, B.StartTime) = SMS.Duration AND SMS.DurationType=1 AND BeforeAfter=0)
        OR
        (DATEDIFF(HOUR, B.StartTime, @currentTime) = SMS.Duration AND SMS.DurationType=1 AND BeforeAfter=1)


--'SMS CONFIGURED FOR DAYS BASIS'

UNION

SELECT  B.Id AS BookingId, 
        B.StartTime AS BookingStartTime,@currentTime As CurrentTime,  SMS.SMSText
FROM    Bookings B INNER JOIN
        SMSConfiguration SMS ON SMS.CategoryId = B.CategoryId OR SMS.CategoryId IS NULL
WHERE (DATEDIFF(DAY, @currentTime, B.StartTime) = SMS.Duration AND SMS.DurationType=2 AND BeforeAfter=0)
        OR
      (DATEDIFF(DAY, B.StartTime, @currentTime) = SMS.Duration AND SMS.DurationType=2 AND BeforeAfter=1)
--'SMS CONFIGURED FOR WEEKS BASIS'

UNION

SELECT  B.Id AS BookingId, 
        B.StartTime AS BookingStartTime, @currentTime As CurrentTime, SMS.SMSText
FROM    Bookings B INNER JOIN
        SMSConfiguration SMS ON SMS.CategoryId = B.CategoryId OR SMS.CategoryId IS NULL
WHERE (DATEDIFF(DAY, @currentTime, B.StartTime)/7 = SMS.Duration AND SMS.DurationType=3 AND BeforeAfter=0)
        OR
      (DATEDIFF(DAY, B.StartTime, @currentTime)/7 = SMS.Duration AND SMS.DurationType=3 AND BeforeAfter=1)
--'SMS CONFIGURED FOR MONTHS BASIS'

UNION

SELECT  B.Id AS BookingId, 
        B.StartTime AS BookingStartTime, @currentTime As CurrentTime, SMS.SMSText
FROM    Bookings B INNER JOIN
        SMSConfiguration SMS ON SMS.CategoryId = B.CategoryId OR SMS.CategoryId IS NULL
WHERE   (dbo.FullMonthsSeparation(@currentTime, B.StartTime) = SMS.Duration AND SMS.DurationType=4 AND BeforeAfter=0)
         OR
        (dbo.FullMonthsSeparation(B.StartTime, @currentTime) = SMS.Duration AND SMS.DurationType=4 AND BeforeAfter=1)

结果

问题：

SQL过程将每15分钟运行一次.即使是当前时间’2014-07-12 11：30：00′,’2014-07-12 11:45:00′,当前查询仍保持返回天/周/月记录等

I want a single query that takes care of all Hours/Days/Weeks/Months
calculation and I should be get records only one time when they meet
the correct time. Otherwise I will be sending sms again and again
every 15 mins for day/week/months records matched.

它应该考虑以下方案.

>小时,如果预订时间是10:15 A.M当天9:15 A.M如果在1小时之前配置
>日(24小时差异),如果预订是10:15 A.M第3天早上10:15 A.M如果在SMSConfiguration中3天后配置
>比赛周.如果预订时间是今天(周三)早上10:15,那么14天早上10点15分之后,如果在2周后配置,则预订.
>月也像上面那样相同的逻辑.

最佳答案 尝试简化版本
FIDDLE,删除Union并使用OR条件

小时清单 – 每15分钟运行一次

DECLARE @currentTime smalldatetime = '2014-07-12 11:15:00'



SELECT  B.Id AS BookingId, C.Id, C.Name,
        B.StartTime AS BookingStartTime,@currentTime As CurrentTime,  SMS.SMSText
FROM    Bookings B INNER JOIN
        SMSConfiguration SMS ON SMS.CategoryId = B.CategoryId OR SMS.CategoryId IS NULL
        LEFT JOIN Category C ON C.Id=B.CategoryId
WHERE   
        (DATEDIFF(MINUTE, @currentTime, B.StartTime) = SMS.Duration*60 AND SMS.DurationType=1 AND BeforeAfter=0)
        OR
        (DATEDIFF(MINUTE, B.StartTime, @currentTime) = SMS.Duration*60 AND SMS.DurationType=1 AND BeforeAfter=1)

Order BY B.Id

GO

列表/周/月 – 每天早晨运行一次

DECLARE @currentTime smalldatetime = '2014-07-12 08:00:00'

SELECT  B.Id AS BookingId, C.Id, C.Name,
        B.StartTime AS BookingStartTime,@currentTime As CurrentTime,  SMS.SMSText
FROM    Bookings B INNER JOIN
        SMSConfiguration SMS ON SMS.CategoryId = B.CategoryId OR SMS.CategoryId IS NULL
        LEFT JOIN Category C ON C.Id=B.CategoryId
WHERE   
    (((DATEDIFF(DAY, @currentTime, B.StartTime) = SMS.Duration AND SMS.DurationType=2)
    OR (DATEDIFF(DAY, @currentTime, B.StartTime) = SMS.Duration*7 AND SMS.DurationType=3)
    OR (DATEDIFF(DAY, @currentTime, B.StartTime) = SMS.Duration*30 AND SMS.DurationType=4))
     AND BeforeAfter=0)

    OR
    (((DATEDIFF(DAY, B.StartTime, @currentTime) = SMS.Duration AND SMS.DurationType=2)
    OR (DATEDIFF(DAY, @currentTime, B.StartTime) = SMS.Duration*7 AND SMS.DurationType=3)
    OR (DATEDIFF(DAY, @currentTime, B.StartTime) = SMS.Duration*30 AND SMS.DurationType=4))
     AND BeforeAfter=1)

Order BY B.Id
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