Trigger creation - Help Required

Question

Hi,
New to pl/sql and would like some help in trying to achieve the following.
I have 2 tables with one being a history table. When someone insert into the first table not the history table. I'd like to create a trigger that will retrieve the last entry for the given id in the history table, then manipulate it to have the same values that have been inserted into the main table, which will result in an insert statement being executed on the history table.
I've created 2 small test table with
create table cs1 (name varchar2(6), age number(3), ins_date date);
create table cs2 (name varchar2(6), age number(3));
What I'd like to trigger to looks like
create or replace trigger cs_trig
after insert on cs2
begin
insert into cs1 (name,age.ins_date)
values (col_value_of_cs2.name, col_values_of_cs2.age, sysdate);
end;
I'm unsure as to how to populate the name and age variable.
This is my first attempt. Sorry if it simple.
Thanks
Caron

Answer 1

Hi Andrew,
Thanks for your help. Could you explain what and are? As I've tried to the create and I'm receiving errors.
SQL> create or replace trigger cs_trig
2 after insert on cs2 fro each row
3 begin
4 insert into cs1 (name,age.ins_date)
5 values (:NEW.name, (:NEW..age, sysdate);
6 end;
7 /
after insert on cs2 fro each row
ERROR at line 2:
ORA-04079: invalid trigger specification