oracle - How to INSERT values to table after updating information SQL -

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create table invoice ( inv_number char (10) not null, inv_date varchar2 (8) not null, order_number varchar2 (10) not null, r_date varchar2 (8) not null, f_date varchar2 (8) not null, arrive_time number not null );

this invoice table

and added it

select * invoice; alter table invoice add inv_total number (2);

this result after (select * invoice)

enter image description here

how can re-enter values "invoice table" without getting error? assume have update somehow able enter values. thank you.

update: insert statement.

insert invoice (inv_number, inv_date, order_number, r_date, f_date) values ('s104011041',to_date ('15/03/2015', 'dd/mm/yyyy'),'s004-011152',to_date ('15/03/2015', 'dd/mm/yyyy'),to_date ('15/03/2015','dd/mm/yyyy'));


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