mysql 将一张表的数据更新到另外一张表中
update 更新表 set 字段 = (select 参考数据 from 参考表 where 参考表.id = 更新表.id);
update table_2 m set m.column = (select column from table_1 mp where mp.id= m.id);
例如: update person p set p.login_account_id=(select ID from user u where p.person_code=u.LOGIN_NAME and p.person_code='4500');
方法二:
update table_1 t1,table_2 t2 set t1.column = t2.column where t1.id = t2.pid;
自己做的例子:
update person p set p.login_account_id=(select ID from user u where p.person_code=u.LOGIN_NAME and p.person_code='4500');