Yesterday's date in SSIS package setting in variable through expression

问题

I am setting a variable in SSIS package and I'm using this expression:

DATEPART("yyyy", GETDATE())*10000 
        + DATEPART("month", GETDATE())*100  
        + DATEPART("day",GETDATE())

The expression will give me a variable value like 'yyyymmdd'. My problem is that I want yesterday's date.

For example on 11/1/2014 it should be 20141031

回答1:

You can use DATEADD function your expression would be :

DATEPART("yyyy", DATEADD( "day",-1, GETDATE()))*10000 + DATEPART("month",  DATEADD( "day",-1, GETDATE())) * 100 + DATEPART("day", DATEADD( "day",-1, GETDATE()))

回答2:

less code...

CONVERT(varchar(8), DATEADD(dd,-1,GETDATE()),112)

回答3:

This will give yesterday's date

(DT_WSTR, 4) YEAR(DATEADD("day",-1,GETDATE())) +RIGHT("0" + (DT_WSTR, 2) DATEPART("MM", DATEADD("day", -1, GETDATE())),2) +RIGHT("0" + (DT_WSTR, 2) DATEPART("DD", DATEADD("day", -1, GETDATE())),2)

回答4:

The following example gives the date yesterday with hours and minutes: 2015-09-06-14-40

(DT_WSTR, 4) Year(dateadd("day",-1,getdate())) +  "-" 
+ ( month(dateadd("day",-1,getdate())) < 10 ? "0" + (DT_WSTR, 4) month(dateadd("day",-1,getdate())):(DT_WSTR, 4) month(dateadd("day",-1,getdate()))) 
+ "-" +( day(dateadd("day",-1,getdate())) <10 ? "0" + (DT_WSTR, 4) day(dateadd("day",-1,getdate())):(DT_WSTR, 4) day(dateadd("day",-1,getdate()))) 
+ "-" + right("0"+(DT_WSTR,4)datepart("hh",getdate()),2) 
+ "-" + right("0"+(DT_WSTR,4)datepart("mi",getdate()),2)

回答5:

(DT_WSTR, 4) YEAR(GETDATE()) +RIGHT("0" + (DT_WSTR, 2) MONTH(GETDATE()),2) +RIGHT("0" + (DT_WSTR, 2) DATEPART("DD", DATEADD("day", -1, GETDATE())),2)

Above will also give you date one day before. Main issue issue doing plus or minus gives truncation error in expression.

RIGHT("0" + (DT_WSTR, 2) DATEPART("DD", DATEADD("day", -1, GETDATE())),2)

will not break the expression.

来源：https://stackoverflow.com/questions/26820731/yesterdays-date-in-ssis-package-setting-in-variable-through-expression

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