定义一个oracle 自定义函数 function
用oracle自定义函数function定义一个能对交易记录表tbl_business(business_id,user_id,business_date,busines...
用oracle 自定义函数 function定义一个能对交易记录表tbl_business(business_id,user_id,business_date,business_amt,content)
如(1 ,1 ,2011/4/19 ,23012 00,‘七匹狼鞋子’)
的交易额business_amt进行判断,当交易额大于200万时将该交易记录添加到风险交易表tbl_Rbusiness(business_id,user_id,business_date,business_amt)中的函数 展开
如(1 ,1 ,2011/4/19 ,23012 00,‘七匹狼鞋子’)
的交易额business_amt进行判断,当交易额大于200万时将该交易记录添加到风险交易表tbl_Rbusiness(business_id,user_id,business_date,business_amt)中的函数 展开
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两种方法,建议你用触发器:
create or replace trigger business
after insert on tbl_business
for each row
begin
if :new.business_amt =2000000 then
insert into tbl_Rbusiness(business_id,user_id,business_date,business_amt) values (:new.business_id,:new.user_id,:new.business_date,:new.business_amt);
end if;
end;
函数:
create or replace function amount return number as
v_exists number;
begin
for v in (select * from tbl_business) loop
if (v.business_amt = 2000000) then
select count(*) into v_exists from ip
where business_id = v.business_id
and user_id = v.user_id
and business_date = v.business_date
and business_amt = v.business_amt;
if v_exists = 0 then
insert into ip (business_id,user_id,business_date,business_amt)
values (v.business_id,v.user_id,v.business_date,v.business_amt);
commit;
end if;
end if;
end loop;
end;
create or replace trigger business
after insert on tbl_business
for each row
begin
if :new.business_amt =2000000 then
insert into tbl_Rbusiness(business_id,user_id,business_date,business_amt) values (:new.business_id,:new.user_id,:new.business_date,:new.business_amt);
end if;
end;
函数:
create or replace function amount return number as
v_exists number;
begin
for v in (select * from tbl_business) loop
if (v.business_amt = 2000000) then
select count(*) into v_exists from ip
where business_id = v.business_id
and user_id = v.user_id
and business_date = v.business_date
and business_amt = v.business_amt;
if v_exists = 0 then
insert into ip (business_id,user_id,business_date,business_amt)
values (v.business_id,v.user_id,v.business_date,v.business_amt);
commit;
end if;
end if;
end loop;
end;
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这不是应该写一个触发器吗?
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