Oracle: Read-only tables

create table tq84_table (
  col_1 number,
  col_2 date
);

insert into tq84_table values (1, sysdate);

alter table tq84_table read only;

select read_only from user_tables where table_name = 'TQ84_TABLE';

insert into tq84_table values (2, null);

drop table tq84_table purge;