1. 直接更改字段值
Insert into table(code,name) values('a','aa') ON DUPLICATE KEY update updateTime=now()
2. 根据原值修改当前值
传入参数 #{step} INSERT INTO table(code,version) VALUES ('a',(@newVersion:=#{step})) ON DUPLICATE KEY UPDATE version=(@newVersion:=version+#{step});
3. 批量修改
-- bean_name为唯一字段 INSERT INTO job (bean_name,params,cron_expression) select bean_name,params,cron_expression from m_job where id=#{dtmJobId} ON DUPLICATE KEY UPDATE cron_expression=values(cron_expression), params=values(params)