Oracle中,表的字段名是不是只能用大写字母
2个回答
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第一步:创建SEQUENCE
create sequence s_country_id increment by 1 start with 1 maxvalue 999999999;
第二步:创建一个基于该表的before insert 触发器,在触发器中使用该SEQUENCE
create or replace trigger bef_ins_t_country_define
before insert on t_country_define
referencing old as old new as new for each row
begin
new.country_id=s_country_id.nextval;
end;
create sequence s_country_id increment by 1 start with 1 maxvalue 999999999;
第二步:创建一个基于该表的before insert 触发器,在触发器中使用该SEQUENCE
create or replace trigger bef_ins_t_country_define
before insert on t_country_define
referencing old as old new as new for each row
begin
new.country_id=s_country_id.nextval;
end;
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