Oracle数据库通过创建触发器实现自增功能

create sequence seq_userinfo                                                             //创建序列

minvalue 1 start with 1 increment by 1;                                               //从1开始每次递增1

create or replace trigger trigger_name                                               //创建触发器

before insert on table_name                                                                //触发器相应的时间，即当向数据库中存入数据时发生

for each row declare begin

    select seq_userinfo.nextval into:new.id from dual;

    end tigger_userinfo;

 

转载于:https://www.cnblogs.com/Jian-Zhang/p/6053680.html