\'MySQL\'\nmysql> SELECT X\'4D7953514C\';\n        -> \'MySQL\'\nmysql> SELECT UNHEX(HEX(\'string\'));\n        -> \'string\'\nmysql> SELECT HEX(UNHEX(\'1267\'));\n        -> \'1267\'\n','https://dev.mysql.com/doc/refman/8.0/en/string-functions.html');