Sql 通过where子句中的不同日期进行筛选

在这里，我使用MS SQL创建了一个简单的表

CREATE TABLE Students1 (
FirstName Nvarchar(100),
SecondName Nvarchar(100),
DOB Smalldatetime,
RegisterDate smalldatetime,
Archived int,
ArchivedDate Smalldatetime
);

Insert Into Students1(FirstName,SecondNAme,DOB,RegisterDate,Archived,ArchivedDate)
Values('James','Bike',16/04/1900, 04/07/2017,0,Null);
Insert Into Students1(FirstName,SecondNAme,DOB,RegisterDate,Archived,ArchivedDate)
Values('Adam','Bike',16/04/1901,04/07/2017,0,Null);
Insert Into Students1(FirstName,SecondNAme,DOB,RegisterDate,Archived,ArchivedDate)
Values('Chris','Bike',16/04/1902,04/09/2017,1,getdate());
Insert Into Students1(FirstName,SecondNAme,DOB,RegisterDate,Archived,ArchivedDate)
Values('Sam','Bike',16/04/1999,04/09/2017,1,getdate());
Insert Into Students1(FirstName,SecondNAme,DOB,RegisterDate,Archived,ArchivedDate)
Values('Josh','Bike',16/04/1999,04/09/2017,1,getdate());

我想针对这一点做一个简单的select语句，根据本地变量的设置，在

RegisterDate

或

archiveDate

上进行过滤

例如，我将设置以下局部变量；

@FitlerRegisterDate

@FilterArchived

如果

@FilterREgisterDate

设置为1，则where子句将查看

RegisterDate

列，但如果

@FilterArchived

设置为1，则where子句将查看

ArchivedColumn

，如果两者都设置为1，则默认情况下应查看

RegisterDate

我已经看了一段时间了，看不到任何突出的东西。如果有人能给我指出正确的方向，那就太好了

---

谢谢

您可以使用

和

以及

或

子句根据变量值进行筛选：

SELECT *
FROM   dbo.Students1
WHERE  (    @FilterArchived     = 1 
        AND @FilterREgisterDate = 1 
        AND RegisterDate        = @dateToFilter )
  OR (   (    @FilterREgisterDate = 1 
          AND RegisterDate        = @dateToFilter )
      OR (    @FilterArchived = 1 
          AND ArchivedDate    = @dateToFilter ) )

大概是这样的：

SELECT *
  FROM Students1
 WHERE @FilterREgisterDate = 1 AND RegisterDate = @RegisterDate
       OR @FilterREgisterDate <> 1 AND @FilterArchived = 1 AND ArchivedDate = @ArchivedDate
; 

选择*
来自学生1
其中@FilterREgisterDate=1，RegisterDate=@RegisterDate
或者@FilterREgisterDate 1和@FilterArchived=1，ArchivedDate=@ArchivedDate
; 

？试一试

select * from dbo.Students1 where (@FilterArchived=1 AND @FilterREgisterDate=1) and registerdate='04/07/2017'

UNION 

select * from dbo.Students1 where (@FilterArchived!=1 AND @FilterREgisterDate=1) and registerdate='04/07/2017'

UNION

select * from dbo.Students1 where  (@FilterArchived=1 AND @FilterREgisterDate!=1) and archived=1