How Stuff and 'For Xml Path' work in Sql Server

Question

Table is:

+----+------+
| Id | Name |
+----+------+    
| 1  | aaa  |
| 1  | bbb  |
| 1  | ccc  |
| 1  | ffffd  |
| 1  | eee  |
+----+------+

Answer 1

There is very new functionality in Azure SQL Database and SQL Server (starting with 2017) to handle this exact scenario. I believe this would serve as a native official method for what you are trying to accomplish with the XML/STUFF method. Example:

select id, STRING_AGG(name, ',') as abc
from temp1
group by id

STRING_AGG - https://msdn.microsoft.com/en-us/library/mt790580.aspx

EDIT: When I originally posted this I made mention of SQL Server 2016 as I thought I saw that on a potential feature that was to be included. Either I remembered that incorrectly or something changed, thanks for the suggested edit fixing the version. Also, pretty impressed and wasn't fully aware of the multi-step review process that just pulled me in for a final option.