Just create a procedure to wrap the call:
create or replace procedure trace(v_message in VARCHAR2) as begin dbms_output.put_line(v_message); end;
Using:
SQL> begin 2 trace('hello'); 3 end 4 ; 5 / PL/SQL procedure successfully completed. SQL> set serverout on size 1000000 SQL> / hello PL/SQL procedure successfully completed.
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