server/sql/updates/0.8/4076_character_spell.sql

DELETE FROM `character_spell` WHERE `spell` = '23301';

INSERT IGNORE INTO `character_spell`
SELECT `character`.`guid`,`playercreateinfo_spell`.`spell` AS `spell`, '65535' AS `slot`,`playercreateinfo_spell`.`Active` AS `active`
FROM `character`,`playercreateinfo_spell` 
WHERE `character`.`class`=`playercreateinfo_spell`.`class` AND `character`.`race`=`playercreateinfo_spell`.`race`;