String aggregation in SQL Server

I have a table as below :

Need to aggregate the user_comments based on comment_id

Desired OP:

I tried below :

 SELECT ID,STRING_AGG(USER_COMMENTS,' ') comment from table_A group by ID;

it gives me :

The comments are not in order by comment_id

DDLs are as below:

CREATE TABLE TABLE_A
(
  COMMENT_ID VARCHAR(100),
  ID VARCHAR(100),
  USER_COMMENTS VARCHAR(100)
  );
  
  INSERT INTO TABLE_A VALUES ('1521013*1521167-1','1521013*1521167','This is to inform');
  INSERT INTO TABLE_A VALUES ('1521013*1521167-3','1521013*1521167','asking for ');
  INSERT INTO TABLE_A VALUES ('1521013*1521167-4','1521013*1521167','detailed report.');
  INSERT INTO TABLE_A VALUES ('1521013*1521167-2','1521013*1521167','that user is ');

How do I aggregate it based on comment_id order ?

Any inputs are appreciated.

Thanks

>Solution :

Please try

SELECT ID,STRING_AGG(USER_COMMENTS,' ')WITHIN GROUP (ORDER BY COMMENT_ID ASC) AS comment 
FROM table_A 
GROUP BY ID