MySQL to convert a string into a slug

gistfile1.txt

LOWER(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(TRIM('My String'), ':', ''), ')', ''), '(', ''), ',', ''), '\\', ''), '\/', ''), '\"', ''), '?', ''), '\'', ''), '&', ''), '!', ''), '.', ''), ' ', '-'), '--', '-'), '--', '-')) AS `post_name`

Laravel / PHP
$sql = 'UPDATE citiesSETslug = LOWER(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(TRIM(name), \':\', \'\'), \'’\', \'\'), \')\', \'\'), \'(\', \'\'), \',\', \'\'), \'\\\\\', \'\'), \'\\/\', \'\'), \'\\\"\', \'\'), \'?\', \'\'), \'\\\'\', \'\'), \'&\', \'\'), \'!\', \'\'), \'.\', \'\'), \' \', \'-\'), \'--\', \'-\'), \'--\', \'-\'))';

GOD SAVE THIS REPLACE!

Credit and thank you @noone0.
Added Azerbaijani characters.
select REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(LOWER(TRIM(CONCAT(title, '-', id))),':', ''), ')', ''), '(', ''), ',', ''), '\\', ''), '/', ''), '"', ''), '?', ''), "'", ''), '&', ''), '!', ''), '.', ''), ' ', '-'), '--', '-'),'--','-'),'ù','u'),'ú','u'),'û','u'),'ü','u'),'ý','y'),'ë','e'),'à','a'),'á','a'),'â','a'),'ã','a'),'ä','a'),'å','a'),'æ','a'),'ç','c'),'è','e'),'é','e'),'ê','e'),'ë','e'),'ì','i'),'í','i'),'ě','e'), 'š','s'), 'č','c'), 'ř','r'), 'ž','z'), 'î','i'),'ï','i'),'ð','o'),'ñ','n'),'ò','o'),'ó','o'),'ô','o'),'õ','o'),'ö','o'),'ø','o') ,'%', '') ,'ç', 'c') ,'ü', 'u') ,'ğ', 'g') ,'ş', 's') ,'ı', 'i') ,'.', '') ,'ö', 'ö') ,'ç', 'c') ,'ə', 'e') ,'#x27;', '') ,'&', '') AS slug from table_name

L3az, its a moroccan slang for You are the best you saved my time thank you

Added replacement for '°' character.

REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE( REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(LOWER(TRIM(CONCAT(column1, '-', column2))),':', ''), ')', ''), '(', ''), ',', ''), '\', ''), '/', ''), '"', ''), '?', ''), "'", ''), '&', ''), '!', ''), '.', ''), ' ', '-'), '--', '-'),'--','-'),'ù','u'),'ú','u'),'û','u'),'ü','u'),'ý','y'),'ë','e'),'à','a'),'á','a'),'â','a'),'ã','a'),'ä','a'),'å','a'),'æ','a'),'ç','c'),'è','e'),'é','e'),'ê','e'),'ë','e'),'ì','i'),'í','i'),'ě','e'), 'š','s'), 'č','c'), 'ř','r'), 'ž','z'), 'î','i'),'ï','i'),'ð','o'),'ñ','n'),'ò','o'),'ó','o'),'ô','o'),'õ','o'),'ö','o'),'ø','o') ,'%', '') ,'ç', 'c') ,'ü', 'u') ,'ğ', 'g') ,'ş', 's') ,'ı', 'i') ,'.', '') ,'ö', 'ö') ,'ç', 'c') ,'ə', 'e') ,'#x27;', '') ,'&', ''),'°','') AS slug from table_name

thanks 👍

Read comments after made some fixes for my own purposes... but I think it could be relevant to split the replaces as done here since it will avoid having '_' at the beginning or the end of the slugged string

REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
		TRIM(		REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
				LOWER(rowToBeSlugged)
			, '·', ''), '|', ''), '®', ''), '`', ''), '°', ''), '$', ''), ':', ''), ')', ''), '(', ''), ',', ''), '\\', ''), '\/', ''), '\"', ''), '?', ''), '&', ''), '!', ''), '.', ''), '[', ''), ']', '')
		), '’', '-'), '\'', '-'), '–', '-'), ' ', '-'), '--', '-'), '--', '-'), 'ñ', 'n'), 'ç', 'c'), 'ø', 'oe'), 'ó', 'o'), 'ô', 'o'), 'ö', 'o'), 'î', 'i'), 'í', 'i'), 'ï', 'i'), 'ú', 'u'), 'ü', 'u'), 'û', 'u'), 'ù', 'u'), 'ý', 'y'), 'ë', 'e'), 'ê', 'e'), 'é', 'e'), 'è', 'e'), 'å', 'a'), 'â', 'a'), 'ä', 'a'), 'á', 'a'), 'à', 'a'), 'ã', 'a'), '²', '2'), '³', '3'), 'æ', 'ae'), 'œ', 'oe'), 'ḥ', 'h')

Let me know if it's useful for you

Forgot to mention a useful thing:

If you search for rows with slugged issues, you can use

WHERE rowName <> CONVERT(rowName USING ASCII)

WOW! Thanks!