Order by inside subquery

Suppose that i select into a temptable as follow by performing grouping from an existing table, and this is current temptable value:

Title Count
-------------
Sr.   11
Mrs.  2
Sra.  3
Ms.   415
Mr.   578

What I want to achieve is a comma separated value for title as follow, which is order by count

[Mrs.], [Sra.], [Sr.], [Ms.], [Mr.]

However, currently i can only able to achieve a comma separated value as follow, which is the default ordering in #temptable

[Sr.], [Mrs.], [Sra.], [Ms.], [Mr.]

Below is my code. How could i achieve what i wanted?

Note: I don't assume nor expect the sequence is already in order when inserting into the #temptable

DECLARE @Columns as VARCHAR(MAX)
SELECT @Columns =
COALESCE(@Columns + ', ','') + QUOTENAME(Title)
FROM
   (
    SELECT Title FROM #tempTable1
   ) AS P

You can use STUFF function in this way:

DECLARE @Columns nvarchar(max);

SET @Columns = STUFF((SELECT ', ' + QUOTENAME(Title)
                      FROM tempTable1
                      ORDER BY [Count]
               FOR XML PATH(''), TYPE).value('.', 'nvarchar(MAX)'), 1, 1, '');

SELECT @Columns;

| (No column name) |
| :----------------------------------- |
| [Mrs.], [Sra.], [Sr.], [Ms.], [Mr.] |

db<>fiddle here

Alternatively and depending on your SQL-Server version you can use STRING_AGG function:

DECLARE @Columns nvarchar(max);

SELECT
    STRING_AGG(QUOTENAME(Title), ',') WITHIN GROUP (ORDER BY [Count])
FROM
    tempTable1;

SELECT @Columns;

StackExchange Database Administrators Q#246736, answer score: 6