create or replace trigger tr_after_update_t1 
after update on t1
for each row
begin
   insert into t2(id, name, cc) values(:new.id, :new.name, '00'); --:old.id, :old.name
end;

------解决方案--------------------
楼上是写的更新时，我就写个插入时：
create or replace trigger tr_after_insert_t1  
after insert on t1
for each row
begin
  insert into t2(id, name, cc) values(:new.id, :new.name, '00'); --:old.id, :old.name
end;
:new代表新插入的表的数据，:old表时修改前的表的数据

------解决方案--------------------
create or replace trigger tr_after_update_t1  
after insert or update on table1
for each row
begin
  insert into table2(id, name, cc) values(:new.id, :new.name, '00');  
end;

------解决方案--------------------
SQL code

create or replace trigger tr_after_update_t1 
after update,delete,insert on t1
for each row
begin
       if inserting then
          insert into table2(id, name, cc) values(:new.id, :new.name, '00'); 
       elsif updating then
          update table2 set name=:new.name,cc=:new.cc where id=:old.id;
       elsif deleting then
          delete from table2 where id=:old.id;
       end if;
      EXCEPTION
       WHEN others THEN
        null;
end;

------解决方案--------------------
探讨

create or replace trigger tr_after_update_t1 
after insert or update on table1 
for each row 
begin 
  insert into table2(id, name, cc) values(:new.id, :new.name, '00'); 
end;


------解决方案--------------------
支持樓上的

------解决方案--------------------
探讨

create or replace trigger tr_after_update_t1 
after insert or update on table1 
for each row 
begin 
  insert into table2(id, name, cc) values(:new.id, :new.name, '00'); 
end;