-- 更新状态
update article set flag_del = 0 where id between 2025 and 2029
-- 重置id
alter table article modify column id int;
set @id := 5999;
update article set id = (@id := @id + 1) order by id;
alter table article modify column id int auto_increment;

-- 修改数据
UPDATE article
SET content = REPLACE(content, '<div>', '')

– 备份和导出

mysqldump -u -p database > backup.sql

mysql -u -p database < backup.sql