Question

基于下表和输入：

Id  RelatedId
--------------
1   1
1   2
1   3
2   2
2   3 
2   4
3   5

输入为@input_1 = 2 and @input_2 = 3（输入计数可能不同）

我想只从上表中选择那些在相应的RelatedIds中同时具有这些输入的ID。

因此，根据给定输入，输出将是

Id
---
1
2

感谢。

Answer 1

尝试

select id
from YourTable
where relatedid in ( @input_1, @input_2)
group by id
having count(*) >=2 -- for 3 inputs, make this 3 etc

例如你可以运行

create table #yourtable(Id int,  RelatedId int)

insert #yourtable values(1,1)
insert #yourtable values(1,2)
insert #yourtable values(1,3)
insert #yourtable values(2,2)
insert #yourtable values(2,3)
insert #yourtable values(2,4)
insert #yourtable values(3,5)


declare @input_1 int, @input_2 int
select @input_1 = 2,@input_2 = 3

select id
from #yourtable
where relatedid in ( @input_1, @input_2)
group by id
having count(*) >=2

Answer 2

试试这个：

SELECT Id FROM tableName 
INNER JOIN (SELECT @input_1 AS id 
   UNION SELECT @input_2,
   UNION SELECT @input_3) inputs
ON inputs.id = tableName.Id

Source

可替换地：

BEGIN
  DECLARE @inputs TABLE( id tinyint )
  INSERT INTO @inputs SELECT @input_1
  INSERT INTO @inputs SELECT @input_2
  INSERT INTO @inputs SELECT @input_3

  SELECT * FROM tableName
  INNER JOIN @inputs i ON i.id = tableName.Id
END

t-sql选择查询过滤器

2 个答案: