Print text in Oracle SQL Developer SQL Worksheet window

Question

I am using Oracle SQL (in SQLDeveloper, using the SQL Worksheet). I would like to print a statement before my select, such as

PRINT \'Querying Table1\';
SELECT          


        

Answer 1

For me, I could only get it to work with

set serveroutput on format word_wrapped;

The wraped and WRAPPED just threw errors: SQLPLUS command failed - not enough arguments

Answer 2

If I ommit begin - end it is error. So for me this is working (nothing else needed):

set serveroutput on;
begin
DBMS_OUTPUT.PUT_LINE('testing');
end;