Why is this an issue?
Trailing whitespaces are simply useless and should not stay in code. They may generate noise when comparing different versions of the same
file.
If you encounter issues from this rule, this probably means that you are not using an automated code formatter - which you should if you have the
opportunity to do so.
Noncompliant code example
DECLARE
-- The following line has many trailing whitespaces
foo VARCHAR2(42) := 'a
b';
BEGIN
-- Will misleadingly show 3, counting only the characters 'a', 'b', and the line terminator, but none of the trailing whitespaces
DBMS_OUTPUT.PUT_LINE(LENGTH(foo));
END;
/
