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1. ´´½¨±íblog_info, ¾ßÓÐIDºÍtitleÁ½¸ö×Ö¶Î, ÆäÖÐID½«ÉèÖÃΪ×Ô¶¯Ôö³¤ÁÐ;
2. ´´½¨ÐòÁÐ:
create sequence sq_blog_info
start with 1
increment by 1
nomaxvalue
nocycle
cache 10;
3. ´´½¨´¥·¢Æ÷:
create or replace trigger tg_blog_info
before insert on blog_info for each row
begin
select sq_blog_info.nextval into :NEW.id from dual; --¡ï×¢Òâ: ´Ë´¦µÄ;ÊDZØÐëµÄ
end;
4. ²âÊÔ:
insert into blog_info (title) values('a');
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