Question

I’ve following problem, which I’ve not been able to do successfully. Your help will be appreciated. I’m using SQL 2005, and trying to do this using CTE.

Table has following 2 columns

DocNum    DocEntry 1              234 2              324 2              746 3              876 3              764 4              100 4              387 

Expected result is as follows

1                 234 2                 324, 746 3                 876, 764 4                 100, 387 

Thanks Rahul Jain

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Further explanation transcribed from the comments:

I’m using a query like following:

WITH ABC (DocNum, DocEntry) AS    (SELECT DocNum, Cast(DocEntry As VARCHAR(8000))         FROM Temp5         WHERE DocNum = 1     UNION ALL     SELECT a.DocNum, A.DocEntry + ', ' + B.DocEntry         FROM ABC B INNER JOIN Temp5 A ON B.DocNum +1= A.DocNum          WHERE A.DOCNUM > 1) SELECT * FROM ABC; 

Result from above query is as follows

1 234 2 234, 324 2 234, 746 3 234, 746, 876 3 234, 746, 764 

I dont want those numbers to repeat as shown in question.

Answer 1

SELECT      DocNum,     STUFF((SELECT ', ' + CAST(DocEntry AS VARCHAR(MAX)) AS [text()]         FROM Temp5 b         WHERE a.DocNum = b.DocNum         FOR XML PATH('')), 1, 2, '') AS DocEntry FROM Temp5 a GROUP BY DocNum 

Itzik Ben-Gan in his excellent book T-SQL QUERYING has some specialized solutions for aggregate string concatenation. The query screams for itself.