Question

我有两列，一个ID，另一个是0或1的值。我试图选择ID为0和1的所有行，例如，

{% if entity.name == 'My entity' %}
    {{ form_row(form.name, { 'attr':{'disabled':'disabled'} }) }}
{% else %}
    {{ form_row(form.name) }}
{% endif %}
{{ form_row(form._token) }}

结果应选择第4,5,8,9,10行

Answer 1

您可以使用COUNT的窗口版本：

SELECT RowNumber, ID, value
FROM (
  SELECT RowNumber, ID, value, 
         COUNT(CASE WHEN value = 1 THEN 1 END) OVER (PARTITION BY ID) AS cntOnes,
         COUNT(CASE WHEN value = 0 THEN 1 END) OVER (PARTITION BY ID) AS cntZeroes
  FROM test
  WHERE value IN (0,1) ) AS t
WHERE cntOnes >= 1 AND cntZeroes >= 1

如果两个 COUNT(DISTINCT value)值存在于同一0, 1切片中，则

ID的值为2.

Answer 2

确实不允许在DISTINCT的窗口版本中使用

COUNT，因此您可以使用MIN和MAX代替。

DECLARE @T TABLE(RN int, ID int, value int);

INSERT INTO @T (RN, ID, value) VALUES
(1, 001, 1),
(2, 001, 1),
(3, 001, 1),
(4, 002, 1),
(5, 002, 0),
(6, 003, 1),
(7, 003, 1),
(8, 004, 1),
(9, 004, 0),
(10, 004, 1);

WITH 
CTE
AS
(
    SELECT
        RN, ID, value
        ,MIN(value) OVER (PARTITION BY ID) AS MinV
        ,MAX(value) OVER (PARTITION BY ID) AS MaxV
    FROM @T AS T
)
SELECT RN, ID, value
FROM CTE
WHERE MinV <> MaxV
;

<强>结果

+----+----+-------+
| RN | ID | value |
+----+----+-------+
|  4 |  2 |     1 |
|  5 |  2 |     0 |
|  8 |  4 |     1 |
|  9 |  4 |     0 |
| 10 |  4 |     1 |
+----+----+-------+

Answer 3

create table #shadowTemp (
    RowNumber int not null,
    Id char(3) not null,
    value bit not null
)

insert into #shadowTemp values ( 1,'001', 0 )
insert into #shadowTemp values ( 2,'001', 1 )
insert into #shadowTemp values ( 3,'001', 1 )
insert into #shadowTemp values ( 4,'002', 0 )
insert into #shadowTemp values ( 5,'003', 0 )
insert into #shadowTemp values ( 6,'003', 1 )

select * from #shadowTemp;

;with cte ( Id ) As (
    select Id
    from #shadowTemp
    group by Id
    having sum( value + 1 ) >= 3
)
select a.* 
from 
#shadowTemp a
inner join cte b on ( a.Id = b.Id )

drop table #shadowTemp

选择ID具有值变量的行

3 个答案: