postgresql. Is it possible to sort like this?

Question

PHP

For example, there is such data in the table:

id	name	age
one	Vasya	40
2	Petya	fifteen
3	Kolya	fifteen
4	Sveta	thirty
5	Masha	thirty

Is it possible only by means of the DBMS to sort the selection so that first there are records with age = 30, and then all the rest?
UPD: Option ORDER BY age = 30 DESCA works correctly and then you can sort by other fields as needed.

Answer 1

order by age = 30, name
Maybe age = 30 DESC, I always confuse them