Mysql/MariaDB table delete records by schedule

 1. /root/cleanup_records.sql

use DATABASE_NAME;
delete from TABLE_NAME where `DATE_FIELD` < DATE_SUB(CURDATE(),INTERVAL 3 MONTH);

2. crontab -e (/var/spool/cron/crontabs/root)

# m h  dom mon dow   command

0 0 * * * mysql -uroot <~/cleanup_records.sql