如何从表中获取ID，而不提及EndDate

Question

由于错误

，代码被删除

Answer 1

更新

创建并填充样本表（请在将来的问题中保存此步骤）

DECLARE @T AS TABLE
(
    ID int identity(1,1),
    Name char(1),
    StartDate date,
    EndDate date
)

INSERT INTO @T VALUES
('A', '2016-04-04', '2017-04-03'),
('B', '2016-04-04', NULL),
('C', '2016-04-04', '2017-04-03'),
('D', '2016-04-04', '2017-04-03'),
('E', '2016-04-04', NULL),
('F', '2016-04-04', NULL),
('G', '2016-04-04', '2017-04-03'),
('C', '2017-04-03', NULL),
('A', '2017-04-03', NULL)

查询：

SELECT Name
FROM @T vu1
WHERE EndDate IS NOT NULL
AND NOT EXISTS
(
    SELECT 1
    FROM @T vu2
    WHERE vu2.Name = vu1.Name
    AND vu2.StartDate >= vu1.EndDate
)

结果：

Name
D
G

第一个版本

假设我理解这个问题，这应该可以解决问题：

SELECT Name
FROM View_User vu1
WHERE EndDate IS NOT NULL
AND NOT EXISTS
(
    SELECT 1
    FROM View_User vu2
    WHERE vu2.Name = vu1.Name
    AND vu2.StartDate >= vu1.EndDate
    AND vu2.EndDate IS NOT NULL
)