Comments on Packages

Question

All,
How does comments on packages/function/procedure affect its execution during runtime?

Answer 1

You can even prove that the compiled size is not affected by comments:
create or replace package wr_test_nocomments
as
   n integer;
end;
create or replace package body wr_test_nocomments
as
   procedure p
   is
   begin
      null;
   end p;
end;
create or replace package wr_test_comments
as
   procedure p;
   -- Comments can appear anywhere in PL/SQL code. The PL/SQL compiler ignores them.
   -- Adding comments to your program promotes readability and aids understanding.
   -- A single-line comment starts with a double hyphen and extends to the end of the line.
   -- A multiline comment starts with a slash and asterisk and ends with an asterisk and a slash.
   The code that begins with PROCEDURE or FUNCTION and ends before IS or AS is the subprogram signature.
   The declarative, executable, and exception-handling parts comprise the subprogram body.
   The syntax of exception-handler is in "About Exceptions and Exception Handlers".
   See Also:
   Oracle Database PL/SQL Language Reference for more information about subprogram parts
end;
create or replace package body wr_test_comments
as
   procedure p
   is
   begin
      null;
      -- Comments can appear anywhere in PL/SQL code. The PL/SQL compiler ignores them.
      -- Adding comments to your program promotes readability and aids understanding.
      -- A single-line comment starts with a double hyphen and extends to the end of the line.
      -- A multiline comment starts with a slash and asterisk and ends with an asterisk and a slash.
      The code that begins with PROCEDURE or FUNCTION and ends before IS or AS is the subprogram signature.
      The declarative, executable, and exception-handling parts comprise the subprogram body.
      The syntax of exception-handler is in "About Exceptions and Exception Handlers".
      See Also:
      Oracle Database PL/SQL Language Reference for more information about subprogram parts
   end p;
end;
break on name skip1
select * from user_object_size s
where  s.name like 'WR_TEST%'
and    s.type like 'PACKAGE%'
order by 1,2;
NAME                           TYPE          SOURCE_SIZE PARSED_SIZE  CODE_SIZE ERROR_SIZE
WR_TEST_COMMENTS               PACKAGE               800         192        236          0
                               PACKAGE BODY          876           0        210          0
WR_TEST_NOCOMMENTS             PACKAGE                49         194        236          0
                               PACKAGE BODY           92           0        210          0