mysql关联修改/关联删除

关联删除,from后面必须使用别名
delete from s USING t_sys_mailtemplet m JOIN t_sys_smstemplet s on s.templetType=m.templetType  where s.templetType='xx.ftl';

delete from s,m USING t_sys_mailtemplet m JOIN t_sys_smstemplet s on s.templetType=m.templetType  where s.templetType='xx.ftl';

关联修改
update t_sys_mailtemplet m JOIN t_sys_smstemplet s on s.templetType=m.templetType set m.CreateTime=now(),s.CreateTime=NOW() where s.templetType='xx.ftl';