Question

I have a table (EMP) I know that using the COALESCE function we can get the values of any column in this way

23,23,45,34

SELECT OfferID  FROM Emp where EmpID= 23

but I am not getting the syntax to achieve this

Any help would be great, to resolve this issue.

Answer 1

DECLARE @List VARCHAR(8000)

SELECT @List = COALESCE(@List + ',', '') + CAST(OfferID AS VARCHAR)
FROM   Emp
WHERE  EmpID = 23

SELECT @List 

This approach to aggregate concatenation is not guaranteed to work. If you are on at least SQL Server 2005 XML PATH or CLR aggregates are preferred.

The definitive article on the subject is Concatenating Row Values in Transact-SQL