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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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create or replace type emp_typ as object (
id number,
name varchar2(30),
sal number,
comm number,
member procedure change_comm(new_comm number),
member function get_info return varchar2
) ;
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