DECLARE @now datetime,@LastMonth datetime
DECLARE @star datetime,@end datetime
![[SQL] 上月的月头和月尾 [SQL] 上月的月头和月尾](/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9TDBsdFlXZGxjeTlQZFhSc2FXNXBibWRKYm1ScFkyRjBiM0p6TDA1dmJtVXVaMmxt)
SET @now = DATEADD(dd,DATEDIFF(dd,'1900-1-1',getDATE()),'1900-1-1') --当前日期
SET @LastMonth = DATEADD(mm,-1,@now) -- 上个月的今天
SET @star = @LastMonth - DAY(@now)+1 -- 上月头
SET @end = DATEADD(ss,-1,@star+32-DAY(@star+32-1)) --上个月尾![[SQL] 上月的月头和月尾 [SQL] 上月的月头和月尾](/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9TDBsdFlXZGxjeTlQZFhSc2FXNXBibWRKYm1ScFkyRjBiM0p6TDA1dmJtVXVaMmxt)
SELECT @star,@end
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