mysql base64編碼解碼

因工作需求，想讓base64編碼的字段全部解碼存儲，沒想到mysql支持該函數

1、to_base64  編碼

如：  select to_base64('12345');

2、from_base64 解碼

如：select from_base64('MTIzNDU=');

select ability.* from comp_ability  ability where ability.req_description like 'PCE%' or ability.resp_description like 'PCE%' ;

CREATE table comp_ability_bak1019 as select * from comp_ability;

UPDATE comp_ability SET req_description = FROM_BASE64(req_description) WHERE req_description LIKE 'PCE%' ;