Question

我正在尝试使用触发器概念将值插入表中，但我收到的错误是我的代码

1  create or replace trigger trig_sub
2  before insert on subscription
3  for each row
4  declare
5  m purchases.msisdn%type;
6  c purchases.circleid%type;
7  con purchases.contentproviderid%type;
8  pac purchases.packagepriceoptionid%type;
9  p purchases.packageid%type;
10 o purchases.operatorid%type;
11 pt purchases.purchasetime%type;
12 mes purchases.messagestatus%type;
13 ts purchases.traiservicekey%type;
14 ubs number(5):=0;
15 sq number(5);
16 extm date;
17 cursor cur_pur is select msisdn,circleid,contentproviderid,packagepriceoptionid,packageid,
   operatorid,purchasetime,messagestatus,traiservicekey from purchases where 
   eventype<>'Content Purchase' and status=1;
18 begin
19 select sub1.next,sysdate+5 into sq,extm from dual;
20 open cur_pur;
21 loop
22 fetch cur_pur into m,c,con,pac,p,o,pt,mes,ts;
23 exit when cur_pur%notfound;
24 if(m=old.msisdn) then
25 if(old.unsubscribdbyuser=1) then
26 insert into subscription(subscriptionid,packageid,subscriptiontime,xpirytime,
   unsubscribedbyuser,remark,packagepriceid,operatorid,contentproviderid,circleid,
   traiservicekey) values(sq,p,pt,extm,ubs,mes,pac,o,con,c,ts);
27 elsif(old.unsubscribdbyuser=0) then
28 update subscription set lastrenewaltime=sysdate and lastrenewalattempttime=sysdate and 
   expirytime=sysdate+5 and modifiedtime=sysdate;
29 end if;
30 else 
31 insert into subscription(subscriptionid,packageid,subscriptiontime,xpirytime,
   unsubscribedbyuser,remark,packagepriceid,operatorid,contentproviderid,circleid,
   traiservicekey) values(sq,p,pt,extm,ubs,mes,pac,o,con,c,ts);
32 end if;
33 end loop;
34 close cur_pur;
35 end trig_sub;
36 /

这是错误：

使用编译器错误创建的触发器。

显示错误触发trig_sub; 19/1 PL / SQL：忽略SQL语句 19/49 PL / SQL：ORA-00933：old.msisdn必须声明

任何人都可以告诉我为什么我面临这个错误，因为我是这个概念和技术的新手任何帮助将不胜感激

Answer 1

您将dml操作之前的行称为old而不是:old（注意冒号）。例如，第24-25行应为：

24 if(m=:old.msisdn) then
25 if(:old.unsubscribdbyuser=1) then

使用触发器在表中插入值时出错

1 个答案: