How to analyse the punctuation and length of a string with SQL

SQL_text_functions_length_left_right_instr.sql

select
title as Title,

--count the number of words in the title
length(title) - length(replace(title, ' ', '')) + 1 as TitleWordLength,

--analyse the punctuation of a title
case 
	when left (title,1) in ('1', '2' ,'3' ,'4','5','6','7','8','9') then 'starts with a number'
	
	when instr(title, '-') !=0 then 'contains a dash'
	when instr(title, ':') !=0 then 'contains a colon'
	when instr(title, ',') !=0 then 'contains a comma'
	when instr(title, '"') !=0 then 'contains quoatation marks'
	
	when right(title,1) = '!' then 'ends with an exclamation mark'
	when right(title,1) = '?' then 'ends with a question mark'
	when right(title, 1) = '.' then 'ends with a dot'
	when right(title,1) not in ('?', '!', '.') then 'ends with no punctuation'
	when right(title,1) in ('1', '2' ,'3' ,'4','5','6','7','8','9') then 'ends with a number'
end as TitlePunctuation,


--find the number of characters and classify according to the following criteria
length(title) as TitleCharLength,

	case 
	when length(title) < 40 then '0-40 characters'
	when length(title) >= 40 and length(title) < 70 then '40-70 charcaters'
	when length(title) >= 70 then 'more than 70 characters'
	end as TitleCharLengthClass,

---find the number of Upper case characters in the string	
regexp_count(title, '[A-Z]') as NumberOfUpperCaseCharactersinTitle,

from
tbl_titles