SQL & PL/SQL

Is it possible to use conditions in a standalone SELECT, similar to conditional compile in PL/SQL

I want to run the SELECT in SQL Developer or Toad by itself, not within a PL/SQL block

Something like this -

SELECT
       $IF DBMS_DB_VERSION.VER_LE_18
       $THEN
             DBMS_FOO.Some_Oracle_18_Function
       $ELSE
             DBMS_FOO.Some_Oracle_19_Function
       $END
from blah_blah

The Oracle 19 package function may not exist so it needs to be conditional code that wont be executed if running in an Oracle 18 database