using Stuff function in SQl

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Hi,
I need to combine multiple rows values into single row with comma separater (,). i had got example from internet and implemented but still some errors exists

select distinct ', ' + TempGroupEmailEmp.EmpName from TempGroupEmailEmp

executing above query displays rows values starting with comma

select STUFF((select distinct ', ' + TempGroupEmailEmp.EmpName from TempGroupEmailEmp),1,2,'') as tmp from TempGroupEmailEmp

for the above query displays the following error

Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

any suggestions

Thanks in advance

Posted 1-Aug-13 21:55pm

a.pkumar

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a.pkumar · Answer 1 · 2013-08-01T22:05:00

Solution 1

it works i missed "for xml path ('')" in the query

correct query as follows

select distinct STUFF((select distinct ', ' + TempGroupEmailEmp.EmpName from TempGroupEmailEmp for XML path('')),1,1,'') as tmp from TempGroupEmailEmp

Posted 1-Aug-13 22:05pm

a.pkumar

OriginalGriff · Answer 2 · 2013-08-01T22:06:00

Solution 2

Don't use STUFF:

SQL

SELECT SUBSTRING((SELECT DISTINCT ', ' + TempGroupEmailEmp.EmpName FROM TempGroupEmailEmp FOR XML PATH('')),2,100000) AS CSV

Posted 1-Aug-13 22:06pm

OriginalGriff

Fredrik Bornander · Answer 3 · 2013-08-01T22:10:00

STUFF works on a single row, but you're feeding it all the rows selected in the inner select.

Try replacing it with;

select STUFF(', ' + TempGroupEmailEmp.EmpName,1,2,'') as tmp from TempGroupEmailEmp

(Or, better yet, don't prefix the EmpName with ', ' just to then remove it using STUFF.)

Hope this helps,
Fredrik