逗號分隔的ID列的值相同

Question

我有很多解決方案可以通過逗號合併值。 我有一些棘手的需求通過逗號合併id。我在桌上有大約10列。例如。

 declare @t1 TABLE (id INT, NAME VARCHAR(MAX), address1 varchar(max), mobileno varchar(max)); 
    INSERT @t1 values (1,'100',null,'1111111111'); 
    INSERT @t1 values (2,'100','pune','1111111111'); 
    INSERT @t1 values (3,'200',null,null); 
    INSERT @t1 values (4,'300','pune',null); 
    INSERT @t1 values (5,'200',null,'1111111111'); 

    SELECT 
    STUFF((
    SELECT ','+CAST(ID AS VARCHAR(10)) [text()] 
    FROM @t1 as B 
    WHERE B.NAME = A.NAME 
    FOR XML PATH('')),1,1,'') as ID, NAME, address1, mobileno 
    FROM @t1 as A 
    GROUP BY NAME, address1, mobileno 

例如，

ID | Value 
---+------- 
1 | 100 
2 | 100 
3 | 200 
4 | 200 
5 | 300 

我需要輸出像

ID | Value 
---|------ 
1,2| 100 
3,4| 200 
    5| 300 

Answer 1

--sample table: 
WITH ABC 
AS 
(
SELECT '1' as ID, '100' as value 

UNION 

SELECT '2' as ID, '100' as value 

UNION 

SELECT '3' as ID, '200' as value 

UNION 

SELECT '4' as ID, '200' as value 

UNION 

SELECT '5' as ID, '300' as value 


) 
--Expected query: 
SELECT 
STUFF((
SELECT ','+ID 
FROM ABC as B 
WHERE B.Value = A.Value 
FOR XML PATH('')),1,1,'') as ID, Value 
FROM ABC as A 
GROUP BY Value 

--Desired output: 
    ID Value 
    1,2 100 
    3,4 200 
    5 300 

請注意：的','+ ID必須確保ID爲VARCHAR或類似的字符串類型，否則就需要它正常工作之前轉換。