前一天或后一天

insus.net把它们写成自定义函数，再程序中直接套用即可。

前一天：

 

set ansi_nulls on
go
set quoted_identifier on
go
-- =============================================
-- author:      insus.net
-- create date: 2019-05-15
-- update date: 2019-05-15
-- description: 前一天
-- =============================================
create function [dbo].[svf_thedaybefore]
(
    @date datetime
)
returns datetime
as 
begin 
    return dateadd(d,-1,@date)
end
go

 

后一天：

 

set ansi_nulls on
go
set quoted_identifier on
go
-- =============================================
-- author:      insus.net
-- create date: 2019-05-15
-- update date: 2019-05-15
-- description: 后一天
-- =============================================
create function [dbo].[svf_thedayafter]
(
    @date datetime
)
returns datetime
as 
begin 
    return dateadd(d,1,@date)
end
go

 

如果获取昨天或明天日期，传入今天日期进去即可：