Question

我的数据看起来像这样;

Id  Name        Number  Birthdate   
0   Dajit Singh NULL    6/9/2007  
5   Dajit Singh 12345   NULL   
11  Dajit Singh NULL    NULL

我想以编程方式将这些行组合成一行，并提供所有可用数据：

0   Dajit Singh 12345   6/9/2007

这是我到目前为止所做的，但它没有做到：

Select Id, 
       Max(Name)   As Name, 
       Max(Number)    As Number, 
       Max(Birthdate) As Birthdate 
From   tblPerson 
Group By Id, Name, Number, Birthdate
Order By Name

如何实现这一目标？

Answer 1

请检查脚本：

DECLARE @table TABLE
(
    Id          INT NOT NULL,
    Name        VARCHAR(50) NOT NULL,
    Number      INT NULL,
    Birthdate   DATETIME NULL
)


INSERT INTO @table(Id, Name, Number, Birthdate) VALUES
(0, 'Dajit Singh', NULL, '20070906'),
(5, 'Dajit Singh', 12345, NULL),
(11, 'Dajit Singh', NULL, NULL),
(100, 'Alex', NULL, '20080906'),
(500, 'Alex', 12345, NULL),
(1100, 'Alex', NULL, NULL)


SELECT
    MIN(Id) As Id, 
    Name As Name, 
    MAX(Number) As Number, 
    MAX(Birthdate) As Birthdate 
FROM @table
GROUP BY Name
ORDER BY Name

将多行合并为一行

1 个答案: